Interface Control Document (ICD) - H-SAF

H -SAF 

Interface Control Document 

Doc. No: SAF/HSAF/ICD/1.1 

Issue: Version 1.1 

Date: 20/06/2008 

Page: 1/149 

Hydrology SAF 


Reference Number: 

SAF/HSAF/ICD/1.1 

Issue/Revision Index: Issue 1.1 

Last Change: 20/06/2008





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DOCUMENT SIGNATURE TABLE 

Name Date Signature 

Prepared by : H-SAF Project Team 08/02/2008 

Approved by : H-SAF Project Manager 08/02/2008 

DOCUMENT CHANGE RECORD 

Issue / Revision Date Description 

Version 0.1 13/09/2006 Preliminary version prepared for discussion 

Version 0.5 07/11/2006 Preliminary Release prepared for RR 

Version 0.6 14/06/2007 Updated Release prepared for V1CP: 

Version 1.0 08/02/2008 Baseline Version prepared for CDR 

Elimination of specification of the interface between SP 

Subsystem and NASA for collection of SSM/I and SSM/IS data. 

Consequent update of This acknowledges RID 43 

Completion and updating of all Data Flow Diagrams in 

consideration of the current set of data/flows/processes. This 

acknowledges RID 89 and RID 90 

Correction of table 3, table 11 and table 13 as acknowledgement 

of RID94 and RID 95 

Correction on naming convention explanation, as 

acknowledgement of RID 128 

Elimination of interfaces EI_SP_280 and EI_SP_290, taking 

account of RID 105 

Review of Applicable Documents list and Reference Documents 

list as acknowledgement of RID 114: transfer of items to the 

second list as [RD 25] and [RD 26]





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Version 1.1 20/06/2008 Acknowledgements of CDR RID’s 

A clarification about local archiving and dissemination performed 

in parallel has been implemented modifying most part state and 

data flow diagrams as acknowled of RID 7 

An homogenization about external interfaces has been reached 

as acknowled of RID 28 

Protocol used on sending product catalogue to UMARF has been 

modified as acknowled of RID 42





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DISTRIBUTION LIST 

Country Organization Name Contact 

Austria ZAMG Veronika Zwatz-Meise zwatz-meise@zamg.ac.at 

ZAMG Alexander Jann alexander.jann@zamg.ac.at 

TU-Wien / IPF Wolfgang Wagner ww@ipf.tuwien.ac.at 

TU-Wien / IPF Stefan Hasenauer sh@ipf.tuwien.ac.at 

Belgium IRM Emmanuel Roulin emmanuel.roulin@oma.be 

IRM Gaston Demaree gaston.demaree@oma.be 

ECMWF Philippe Bougeault philippe.bougeault@ecmwf.int 

Matthias Drusch 

Klaus Scipal 

matthias.drusch@ecmwf.int 

klaus.scipal@ecmwf.int 

Finland FMI Pirkko Pylkko pirkko.pylkko@fmi.fi 

FMI Jarkko Koskinen jarkko.koskinen@fmi.fi 

FMI Jouni Pulliainen jouni.pulliainen@fmi.fi 

FMI Panu Lahtinen panu.lahtinen@fmi.fi 

TKK Juha-Petri Karna juha-petri.karna@tkk.fi 

SYKE Sari Metsämäki sari.metsamaki@ymparisto.fi 

France Météo France Jean-Christophe Calvet jean-christophe.calvet@meteo.fr 

Météo France Laurent Franchisteguy laurent.franchisteguy@meteo.fr 

CNRS-CETP Mehrez Zribi mehrez.zribi@cetp.ipsl.fr 

CNRS-CESBIO Patricia de Rosnay derosnay@cesbio.cnes.fr 

Germany BfG Thomas Maurer thomas.maurer@bafg.de 

Hungary OMSZ Eszter Lábó labo.e@met.hu 

Italy USAM Massimo Capaldo m.capaldo@meteoam.it 

CNMCA Luigi De Leonibus l.deleonibus@meteoam.it 

CNMCA Costante De Simone c.desimone@meteoam.it 

CNMCA Francesco Zauli f.zauli@meteoam.it





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CNMCA Daniele Biron d.biron@meteoam.it 

CNMCA Davide Melfi d.melfi@meteoam.it 

CNMCA Attilio Di Diodato a.didiodato@meteoam.it 

CNMCA Lucio Torrisi l.torrisi@meteoam.it 

CNMCA Massimo Bonavita m.bonavita@meteoam.it 

CNMCA Adriano Raspanti a.raspanti@meteoam.it 

CNMCA Alessandro Galliani a.galliani@meteoam.it 

DPC Roberto Sorani hsaf.management@protezionecivile.it 

DPC Luca Rossi luca.rossi@protezionecivile.it 

DPC Silvia Puca silvia.puca@protezionecivile.it 

DPC Angela Corina angela.corina@protezionecivile.it 

DPC William Nardin william.nardin@protezionecivile.it 

CNR-ISAC Franco Prodi f.prodi@isac.cnr.it 

CNR-ISAC Bizzarro Bizzarri bibizzar@tin.it 

CNR-ISAC Alberto Mugnai a.mugnai@isac.cnr.it 

CNR-ISAC Vincenzo Levizzani v.levizzani@isac.cnr.it 

CNR-ISAC Francesca Torricella f.torricella@isac.cnr.it 

CNR-ISAC Stefano Dietrich s.dietrich@isac.cnr.it 

CNR-ISAC Francesco Di Paola francesco.dipaola@ifa.rm.cnr.it 

Ferrara University Federico Porcu' porcu@fe.infn.it 

Ferrara University Davide Capacci capacci@fe.infn.it 

DATAMAT Flavio Gattari flavio.gattari@datamat.it 

DATAMAT Emiliano Agosta emiliano.agosta@datamat.it 

Poland IMWM Piotr Struzik piotr.struzik@imgw.pl 

IMWM Bozena Lapeta bozena.lapeta@imgw.pl 

IMWM Jerzy Niedbala jerzy.niedbala@imgw.pl 

IMWM Jaga Niedbala jaga.niedbala@imgw.pl 

IMWM Monika Pajek monika.pajek@imgw.pl





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IMWM Jakub Walawender jakub.walawender@imgw.pl 

IMWM Jan Szturc jan.szturc@imgw.pl 

Romania NMA Andrei Diamandi diamandi@meteo.inmh.ro 

NMA Simona Oancea simona.oancea@meteo.inmh.ro 

Slovakia SHMÚ Ján Kaňák jan.kanak@shmu.sk 

SHMÚ Marián Jurašek marian.jurasek@shmu.sk 

SHMÚ Marcel Zvolenský marcel.zvolensky@shmu.sk 

Turkey TSMS Fatih Demýr fdemir@meteor.gov.tr 

TSMS Ali Umran Komuscu aukomuscu@meteor.gov.tr 

TSMS Ibrahim Sonmez isonmez@meteor.gov.tr 

TSMS Aydın Erturk agerturk@meteor.gov.tr 

METU Ali Unal Sorman sorman@metu.edu.tr 

METU Zuhal Akyurek zakyurek@metu.edu.tr 

METU Orhan Gokdemir orhan.gokdemir@gmail.com 

METU Ozgur Beser beser@metu.edu.tr 

ITU Ahmet Oztopal oztopal@itu.edu.tr 

Anadolu University Aynur Sensoy asensoy@anadolu.edu.tr 

EUMETSAT Lorenzo Sarlo lorenzo.sarlo@eumetsat.int 

Frédéric Gasiglia 

Dominique Faucher 

Jochen Grandell 

Lothar Schüller 

frederic.gasiglia@eumetsat.int 

dominique.faucher@eumetsat.int 

jochen.grandell@eumetsat.int 

lothar.schueller@eumetsat.int





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TABLE OF CONTENTS 

1 Introduction .............................................................................................................. 13 

1.1 Purpose ............................................................................................................... 13 

1.2 Scope .................................................................................................................. 13 

1.3 Document Overview ............................................................................................ 13 

1.4 Glossary .............................................................................................................. 14 

1.5 References .......................................................................................................... 20 

2 Overview of the Interfaces ....................................................................................... 22 

2.1 Naming Convention ............................................................................................. 22 

2.2 H-SAF External Interfaces ................................................................................... 24 

2.3 H-SAF Internal Interfaces .................................................................................... 32 

3 Interface Data Flows................................................................................................. 36 

3.1 Precipitation Subsystem Data Flows ................................................................... 36 

3.2 Soil Moisture Subsystem Data Flows .................................................................. 44 

3.3 Snow Parameters Subsystem Data Flows .......................................................... 52 

3.4 Hydro Validation Subsystem Data Flows ............................................................ 58 

3.5 Offline Monitoring Subsystem Data Flows ........................................................... 62 

4 Interface Specification ............................................................................................. 68 

4.1 Introduction ......................................................................................................... 68 

4.2 EI_PR_10 (Meteosat-SEVIRI Data) .................................................................... 69 

4.3 EI_PR_30 (NOAA) .............................................................................................. 69 

4.4 EI_PR_40 (MetOp).............................................................................................. 70 

4.5 EI_PR_50 (DMSP) .............................................................................................. 71 

4.6 EI_PR_100 (Synoptic / Observation Data) .......................................................... 72 

4.7 EI_PR_110 (Auxiliary Data - TLE) ....................................................................... 73 

4.8 EI_PR_120 (Satellite Data via EUMETCast) ....................................................... 74 

4.9 EI_PR_130 (NWP Data – Boundary Conditions) ................................................ 75 

4.10 EI_PR_500 (Precipitation Products via EUMETCast) ......................................... 76





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4.11 EI_PR_510 (Precipitation Products via WMO-GTS)............................................ 77 

4.12 EI_PR_520 (Precipitation Products metadata via UMARF Client) ...................... 78 

4.13 EI_SM_10 (Level 2 MetOp/ASCAT product) ....................................................... 79 

4.14 EI_SM_15 (Level 1 MetOp/ASCAT product) ....................................................... 80 

4.15 EI_SM_20 (ERS1/2 AMI-SCAT Archived Data) .................................................. 81 

4.16 EI_SM_30 (Envisat/ASAR Archived Data) .......................................................... 81 

4.17 EI_SM_50 (Auxiliary Data) .................................................................................. 82 

4.18 EI_SM_90 (Synoptic Weather Data via WMO-GTS) ........................................... 83 

4.19 EI_SM_500 (Soil Moisture Products to Scientific Users) ..................................... 84 

4.20 EI_SM_510 (Soil Moisture Products via EUMETCast) ........................................ 85 

4.21 EI_SM_520 (Soil Moisture Products via WMO-GTS) .......................................... 86 

4.22 EI_SP_10 (NOAA-AVHRR Archived Data) ......................................................... 87 

4.23 EI_SP_15 (NOAA-AVHRR Archived Data) ......................................................... 88 

4.24 EI_SP_20 (NOAA-AVHRR Data) ........................................................................ 88 

4.25 EI_SP_30 (NOAA-AVHRR Data) ........................................................................ 89 

4.26 EI_SP_40 (MetOp-AVHRR Data via EUMETCast) ............................................. 90 

4.27 EI_SP_50 (MetOp-AVHRR Data) ........................................................................ 91 

4.28 EI_SP_60 (MetOp-AVHRR Data) ........................................................................ 92 

4.29 EI_SP_70 (EOS Aqua-MODIS Archived Data) ................................................... 93 

4.30 EI_SP_75 (EOS Aqua-MODIS Archived Data) ................................................... 94 

4.31 EI_SP_80 (EOS Aqua-MODIS Data) .................................................................. 95 

4.32 EI_SP_85 (EOS Aqua-AMSR-E Data) ................................................................ 95 

4.33 EI_SP_90 (EOS Aqua-AMSR-E Data) ................................................................ 96 

4.34 EI_SP_110 (EOS Terra-MODIS Archived Data) ................................................. 97 

4.35 EI_SP_120 (EOS Terra-MODIS Archived Data) ................................................. 98 

4.36 EI_SP_125 (EOS Terra-MODIS Satellite Data) .................................................. 99 

4.37 EI_SP_130 (EOS Aqua-AMSR-E Archived Data) ............................................. 100 

4.38 EI_SP_135 (EOS Aqua-AMSR-E Archived Data) ............................................. 101





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4.39 EI_SP_140 (Meteosat-SEVIRI Data via EUMETCast) ...................................... 101 

4.40 EI_SP_145 (Meteosat-SEVIRI Data via EUMETCast) ...................................... 102 

4.41 EI_SP_180 (DMSP Archived Data) ................................................................... 103 

4.42 EI_SP_200 (SYNOP Archived Data via WMO-GTS) ......................................... 104 

4.43 EI_SP_210 (SYNOP Archived Data via WMO-GTS) ......................................... 105 

4.44 EI_SP_220 (NASA Archived Data) .................................................................... 106 

4.45 EI_SP_230 (NOAA Archived Data) ................................................................... 107 

4.46 EI_SP_240 (ECMWF Archived Data) ................................................................ 108 

4.47 EI_SP_250 (NASA Archived Data) .................................................................... 108 

4.48 EI_SP_260 (NOAA Archived Data) ................................................................... 109 

4.49 EI_SP_270 (ECMWF Archived Data) ................................................................ 110 

4.50 EI_SP_280 (Auxiliary Data) ............................................................................... 111 

4.51 EI_SP_290 (Auxiliary Data) ............................................................................... 112 

4.52 EI_SP_500 (SN-OBS-1, SN-OBS-2, SN-OBS-3, SN-OBS-4 via UMARF) ........ 113 

4.53 EI_SP_520 (SN-OBS-1, SN-OBS-2, SN-OBS-3, SN-OBS-4 via EUMETCast) . 114 

4.54 EI_SP_540 (SN-OBS-1, SN-OBS-2, SN-OBS-3, SN-OBS-4 via WMO-GTS) ... 115 

4.55 EI_HV_10 (H-SAF Products via EUMETCast) .................................................. 116 

4.56 EI_HV_20 (H-SAF Products via WMO-GTS) .................................................... 116 

4.57 EI_OM_500 (H-SAF Products Catalogue via UMARF) ..................................... 117 

4.58 II_PR_10 (Pre-processed Satellite Data for PR-GC1) ....................................... 118 

4.59 II_PR_20 (Pre-processed Satellite Data for PR-GC2) ....................................... 119 

4.60 II_PR_30 (PR-OBS-1)....................................................................................... 120 

4.61 II_PR_40 (PR-OBS-2)....................................................................................... 121 

4.62 II_PR_50 (PR-OBS-3, PR-OBS-4) .................................................................... 122 

4.63 II_PR_170 (PR-OBS-1, PR-OBS-2, PR-OBS-3, PR-OBS-4, PR-OBS-5) ......... 123 

4.64 II_PR_180 (PR-OBS-1, PR-OBS-2, PR-OBS-3, PR-OBS-4, PR-OBS-5) .......... 124 

4.65 II_PR_190 (PR-ASS-1 for QC) .......................................................................... 125 

4.66 II_PR_200 (PR-ASS-1 for Dissemination) ......................................................... 125





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4.67 II_PR_210 (Observation Data) .......................................................................... 126 

4.68 II_PR_300 (All Precipitation products to Offline Monitoring) .............................. 127 

4.69 II_SM_10 (SM-ASS-1)....................................................................................... 128 

4.70 II_SM_30 (SM-OBS-1 backup for Quality Control) ............................................ 129 

4.71 II_SM_31 (SM-OBS-2) ...................................................................................... 130 

4.72 II_SM_32 (SM-OBS-2) ...................................................................................... 130 

4.73 II_SM_35 (SM-OBS-1 backup for dissemination) .............................................. 131 

4.74 II_SM_40 (All Soil Moisture Products to Offline Monitoring) .............................. 132 

4.75 II_SM_60 (SM-ASS-1 for Quality Control) ......................................................... 133 

4.76 II_SP_10 (Pre-processed Satellite Data for SP-GC1) ....................................... 134 

4.77 II_SP_20 (Pre-processed Satellite Data for SP-GC2) ....................................... 135 

4.78 II_SP_70 (Auxiliary Data) .................................................................................. 136 

4.79 II_SP_80 (Auxiliary Data) .................................................................................. 137 

4.80 II_SP_120 (SN-OBS-1, SN-OBS-2, SN-OBS-3, SN-OBS-4) ............................. 138 

4.81 II_SP_300 (SN-OBS-1b, SN-OBS-3b, SN-OBS-4b for merging) ...................... 139 

4.82 II_HV_10 (Hydro Validation Impact Study Reports) .......................................... 140 

4.83 II_HV_20 (HV Report) ....................................................................................... 141 

4.84 II_OM_10 (H-SAF Products and reports for archiving) ...................................... 141 

4.85 II_OM_20 (H-SAF Products for reporting) ......................................................... 142 

4.86 II_OM_30 (H-SAF Performance Reports for archiving) ..................................... 143 

4.87 II_OM_40 (H-SAF Products and Reports for dissemination) ............................. 144 

4.88 II_OM_50 (H-SAF Performance Reports to Precipitation Subsystem) .............. 145 

4.89 II_OM_60 (H-SAF Performance Reports to Soil Moisture Subsystem) ............. 146 

4.90 II_OM_70 (H-SAF Performance Reports to SP-GC1) ....................................... 147 

4.91 II_OM_80 (H-SAF Performance Reports to SP-GC2) ....................................... 147 

5 TBDs/TBCs list ....................................................................................................... 148





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LIST OF TABLES 

Table 1 H-SAF External Interfaces for Data Acquisition ................................................... 28 

Table 2 H-SAF External Interfaces for Data Distribution .................................................. 29 

Table 3 H-SAF External Data ........................................................................................... 32 

Table 4 Precipitation Subsystem Internal Interfaces ......................................................... 34 

Table 5 Soil Moisture Subsystem Internal Interfaces ........................................................ 34 

Table 6 Snow Parameters Subsystem Internal Interfaces ................................................ 35 

Table 7 Hydro Validation Subsystem Internal Interfaces .................................................. 35 

Table 8 Offline Monitoring Subsystem Internal Interfaces ................................................ 36 

Table 9 Precipitation Subsystem Interface Data ............................................................... 37 

Table 10 Precipitation Subsystem Interface Processes ..................................................... 40 

Table 11 Soil Moisture Subsystem Interface Data ............................................................. 45 

Table 12 Soil Moisture Subsystem Interface Processes .................................................... 48 

Table 13 Snow Parameters Subsystem Interface Data ..................................................... 53 

Table 14 Snow Parameters Subsystem Interface Processes ............................................ 55 

Table 15 Hydro Validation Subsystem Interface Processes .............................................. 60 

Table 16 Offline Monitoring Interface Processes .............................................................. 65 

Table 17 Precipitation Products Sizes ............................................................................... 77 

Table 18 NOAA-AMSU Data Size ................................................................................... 119





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LIST OF FIGURES 

Figure 1 State Diagram of PR-GC1 Precipitation Subsystem ............................................ 38 

Figure 2 State Diagram of PR-GC2 Precipitation Subsystem ............................................ 39 

Figure 3 Data Flow Diagram of PR-GC1 Component for PR-OBS-1 & 2 .......................... 41 

Figure 4 Data Flow Diagram of PR-GC1 Component for PR-OBS-3 & 4 .......................... 42 

Figure 5 Data Flow Diagram of PR-GC1 Component for PR-OBS-5 ................................. 43 

Figure 6 Data Flow Diagram of PR-GC2 Component for PR-ASS-1 ................................. 44 

Figure 7 State Diagram of SM-GC1 Component ............................................................... 46 

Figure 8 State Diagram of SM-GC2 Component ............................................................... 47 

Figure 9 Data Flow Diagram of the SM-GC1 Component for SM-OBS-1 backup.............. 49 

Figure 10 Data Flow Diagram of the SM-GC1 Component for SM-OBS-2 ....................... 50 

Figure 11 Data Flow Diagram of the SM-GC2 Component for SM-ASS-1 ....................... 51 

Figure 12 State Diagram of SP-GC1 Component ............................................................. 53 

Figure 13 State Diagram of SP-GC2 Component ............................................................. 54 

Figure 14 Data Flow Diagram of SP-GC1 Component for combined and ”a” labelled 

intermediate Snow Parameters products ........................................................................... 56 

Figure 15 Data Flow Diagram of SP-GC2 Component for ”b” labelled intermediate Snow 

Parameters products ......................................................................................................... 57 

Figure 16 State Diagram of Hydro Validation Subsystem .................................................. 59 

Figure 17 Data Flow Diagram of Hydro Validation Subsystem .......................................... 61 

Figure 18 State Diagram of Offline Monitoring Subsystem ................................................ 63 

Figure 19 Data Flow Diagram of Offline Monitoring Subsystem - Archiving flow ............... 66 

Figure 20 Data Flow Diagram of Offline Monitoring Subsystem - Dissemination flow ....... 67





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1 Introduction 

1.1 Purpose 

This Interface Control Document describes the relationship among the components of H- 

SAF system in terms of data items and messages passed, protocols observed and timing 

and sequencing of events. 

1.2 Scope 

This document covers the interfaces of the facilities for generation of Precipitation, Soil 

Moisture and Snow Parameters products and for their centralization, archiving and 

dissemination that shall be provided at H-SAF sites: 

CNMCA (Italy) 

ZAMG (Austria) 

ECMWF (UK) 

FMI (Finland) 

TSMS (Turkey) 

This is in accordance with Technical Proposal [AD1] and Project Plan [AD2]. 

It also cover internal and external interfaces related to the Hydro Validation Subsystem 

and the Offline Monitoring Subsystem. 

1.3 Document Overview 

Section 2 provides a general description of the external and internal H-SAF interfaces. The 

external ones are divided in two interfaces groups: 

Data Acquisition; 

Data Distribution. 

An overview of each subsystem’s interfaces is also provided here. 

Section 3 describes the interface flows in terms of: 

Exchanged data; 

Interface states; 

Interfaces processes;





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Data flows. 

Section 4 provides a more detailed description of the interfaces, giving information about: 

Support type; 

Protocols; 

Mean frequency; 

Size; 

Trigger events data flow. 

1.4 Glossary 

AAPP 

ADEOS 

ALOS 

AMIR 

AMSR 

AMSR-E 

AMSU-A 

AMSU-B 

API 

ASAR 

ASCAT 

ASI 

ATDD 

ATMS 

ATOVS 

AU 

AVHRR 

BAMPR 

BfG 

BRDF 

BVA 

CASE 

CBA 

CBSD 

CDA 

CDD 

AVHRR and ATOVS Processing Package 

Advanced Earth Observation Satellite (I and II) 

Advanced Land Observing Satellite 

Advanced Microwave Imaging Radiometer 

Advanced Microwave Scanning Radiometer (on ADEOS-II) 

Advanced Microwave Scanning Radiometer - E (on EOS-Aqua) 

Advanced Microwave Sounding Unit - A (on NOAA satellites and EOS-Aqua) 

Advanced Microwave Sounding Unit - B (on NOAA satellites up to NOAA-17) 

Application Program(ming) Interface 

Advanced SAR (on ENVISAT) 

Advanced Scatterometer (on MetOp) 

Agenzia Spaziale Italiana 

Algorithms Theoretical Definition Document 

Advanced Technology Microwave Sounder (on NPP and NPOESS) 

Advanced TIROS Operational Vertical Sounder (on NOAA and MetOp) 

Anatolian University 

Advanced Very High Resolution Radiometer (on NOAA and MetOp) 

Bayesian Algorithm for Microwave Precipitation Retrieval 

Bundesanstalt für Gewässerkunde 

Bi-directional Reflectance Distribution Function 

Boundary Value Analysis 

Computer Aided System Engineering 

Component-Based Architecture 

Component-based Software Development 

Command and Data Acquisition (EUMETSAT station at Svalbard) 

Component Design Document





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CDR Critical Design Review 

CESBIO Centre d'Etudes Spatiales de la BIOsphere (of CNRS) 

CETP Centre d’études des Environnements Terrestres et Planétaires (of CNRS) 

CI 

Configuration Item 

CMIS Conical-scanning Microwave Imager/Sounder (on NPOESS) 

CMP Configuration Management Plan 

CNMCA Centro Nazionale di Meteorologia e Climatologia Aeronautica 

CNR Consiglio Nazionale delle Ricerche 

CNRM Centre Nationale de la Recherche Météorologique (of Météo-France) 

CNRS Centre Nationale de la Recherche Scientifique 

COM Component Object Model 

CORBA Common Object Request Broker Architecture 

COTS Commercial-off-the-shelf 

CPU Central Processing Unit 

CR Component Requirement 

CRD Component Requirement Document 

CVERF Component Verification File 

CVS Concurrent Versions System 

DCOM Distributed Component Object Model 

DEM Digital Elevation Model 

DFD Data Flow Diagram 

DMSP Defense Meteorological Satellite Program 

DOF Data Output Format 

DPC Dipartimento della Protezione Civile 

DWD Deutscher Wetterdienst 

E&T Education and Training 

EARS EUMETSAT Advanced Retransmission Service (station) 

ECMWF European Centre for Medium-range Weather Forecasts 

ECSS European Cooperation on Space Standardization 

EGPM European contribution to the GPM mission 

EOS Earth Observing System 

EPS EUMETSAT Polar System 

ERS European Remote-sensing Satellite (1 and 2) 

ESA European Space Agency 

EUR End-User Requirements 

FMI Finnish Meteorological Institute 

FOC Full Operational Chain





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FTP 

GEO 

GIS 

GMES 

GOMAS 

GOS 

GPM 

GPROF 

GTS 

GUI 

HMS 

HRU 

H-SAF 

HSB 

HTML 

HTTP 

HUT/LST 

HV 

HVR 

HYDRO 

HYDROS 

HW 

ICD 

ICT 

IEEE 

IFS 

INF 

INWM 

IPF 

ISAC 

ISO 

IT 

ITU 

JPS 

J2EE 

KIDS 

KLOC 

File Transfer Protocol 

Geostationary Earth Orbit 

Geographical Information System 

Global Monitoring for Environment and Security 

Geostationary Observatory for Microwave Atmospheric Sounding 

Global Observing System 

Global Precipitation Measurement mission 

Goddard Profiling algorithm 

Global Telecommunication System 

Graphical User Interface 

Hungarian Meteorological Service 

Hydrological Response Unit 

SAF on support to Operational Hydrology and Water Management 

Humidity Sounder for Brazil (on EOS-Aqua) 

Hyper Text Markup Language 

Hyper Text Transfer Protocol 

Helsinki University of Technology / Laboratory of Space Technology 

Hydrovalidation (referred to Hydro Validation Subsystem items, e.g.: reports, components 

etc.) 

Hydrological Validation Review 

Preliminary results of Hydrological validation 

Hydrosphere State Mission 

Hardware 


Information and Communication Technology 

Institute of Electrical and Electronics Engineers 

Integrated Forecast System 

Progress reports in between meetings 

Institute of Meteorology and Water Management (of Poland) 

Institut für Photogrammetrie und Fernerkundung 

Istituto di Scienze dell’Atmosfera e del Clima (of CNR) 

International Standards Organization 

Information Technology 

Istanbul Technical University 

Joint Polar System (MetOp + NOAA/NPOESS) 

Java 2 Enterprise Edition 

Kestrel Interactive Development System 

Thousand (Kilo) Lines Of Code





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KOM Kick-Off Meeting 

LAI Leaf Area Index 

LAN Local Area Network 

LEO Low Earth Orbit 

LIS Lightning Imaging Sensor (on TRMM) 

LLS Lower Level Specifications 

LOC Lines Of Code 

LST Solar Local Time (of a sun-synchronous satellite) 

MARS Meteorological Archive and Retrieval System 

MetOp Meteorological Operational satellite 

METU Middle East Technical University (of Turkey) 

MHS Microwave Humidity Sounder (on NOAA N/N’ and MetOp) 

MIMR Multi-frequency Imaging Microwave Radiometer 

MIN Minutes of Meetings/Reviews 

MODIS Moderate-resolution Imaging Spectro-radiometer (on EOS Terra and Aqua) 

MSG Meteosat Second Generation 

MTBF Mean Time Between Failure 

MTG Meteosat Third Generation 

MTTR Mean Time To Repair 

MVIRI Meteosat Visible Infra-Red Imager (on Meteosat 1 to 7) 

N/A Not Available 

N.A. Not Applicable 

NASA National Aeronautics and Space Administration 

NATO North Atlantic Treaty Organisation 

NDI Non-developmental Items 

NIMH National Institute for Meteorology and Hydrology (of Hungary) 

NMS National Meteorological Service 

NOAA National Oceanic and Atmospheric Organisation (intended as a satellite series) 

NPOESS National Polar-orbiting Operational Environmental Satellite System 

NPP NPOESS Preparatory Programme 

NRT Near-Real Time 

NWP Numerical Weather Prediction 

OAR Options Analysis for Reengineering 

OFL Off-line 

OM Offline Monitoring (referred to Offline Monitoring Subsystem items, e.g.: components) 

OMG Object Management Group 

OO Object Oriented





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OP Proposal for H-SAF Operational phase 

OPS Operational Product Segment 

ORB Object Request Broker 

ORR Operations Readiness Review 

OWL Web Ontology Language 

PAC Prototype Algorithm Code 

PALSAR Phased Array L-band Synthetic Aperture Radar (on ALOS) 

PAW Plant Available Water 

PDR Preliminary Design Review 

POP Precipitation Observation Production 

PP Project Plan 

PPR Products Prototyping Reports 

PR Precipitation (referred to Precipitation Subsystem items, e.g.: products, components etc.) 

PRB Problem Review Board 

QoS Quality of Service 

R&D Research and Development 

RCS Revision Control System 

REP Report 

RMI Royal Meteorological Institute (of Belgium) 

RR Requirements Review 

RT Real Time 

SAAM Simulation, Analysis and Modeling 

SAF Satellite Application Facility 

SAG Science Advisory Group 

SAOCOM Argentinean Satellite for Observation and Communication 

SAR Synthetic Aperture Radar 

SA/SD Structured Analysis / Structured Design 

SCA Snow Covered Area 

SCAT Scatterometer (on ERS-1 and 2) 

SCM Source Configuration Management 

SD Snow depth 

SDAS Surface Data Assimilation System 

SDD System Design Document 

SDP Software Development Plan 

SEI Software Engineering Institute 

SEVIRI Spinning Enhanced Visible Infra-Red Imager (on MSG) 

SHW State Hydraulic Works of Turkey





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SHFWG 

SHMI 

SIRR 

SIVVP 

SLAs 

SM 

SMART 

SMMR 

SMOS 

SN 

SOA 

SoS 

SP 

SQL 

SR 

SRD 

SSM/I 

SSMIS 

SSVD 

STRR 

SVALF 

SVERF 

SVRR 

SW 

SWE 

SYKE 

TBC 

TBD 

TC 

TKK/LST 

TLE 

TMI 

TP 

TR 

TRMM 

TSMS 

TU Wien 

SAF Hydrology Framework Working Group 

Slovakian Hydrological and Meteorological Institute 

System Integration Readiness Review 

System Integration, Verification & Validation Plan 

Service-Level Agreements 

Soil Moisture (referred to Soil Moisture Subsystem items, e.g.: products, components etc.) 

Service Migration and Reuse Technique 

Scanning Multichannel Microwave Radiometer (on SeaSat and Nimbus VII) 

Soil Moisture and Ocean Salinity 

Snow Parameters (referred to Snow Parameters Subsystem products) 

Service-Oriented Architecture 

System of Systems 

Snow Parameters (referred to Snow Parameters Subsystem items, e.g.: components) 

Structured Query Language 

System Requirement 

System Requirements Document 

Special Sensor Microwave / Imager (on DMSP up to F-15) 

Special Sensor Microwave Imager/Sounder (on DMSP starting with F-16) 

System/Software Version Document 

System Test Results Review 

System Validation File 

System Verification File 

System Validation Results Review 

Software 

Snow Water Equivalent 

Finnish Environment Institute 

To be confirmed 

To be defined 

Test Case 

Helsinki University of Technology / Laboratory of Space Technology 

Two-line-element (telemetry data format) 

TRMM Microwave Imager (on TRMM) 

Test Procedure 

Test Report 

Tropical Rainfall Measuring Mission 

Turkish State Meteorological Service 

Technische Universität Wien





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UM 

U-MARF 

UML 

UR 

URD 

VIIRS 

VS 

WBS 

WMO 

WP 

WPD 

WS 

W3C 

XMI 

XML 

ZAMG 

User Manual 

Unified Meteorological Archive and Retrieval Facility 

Unified Modelling Language 

User Requirement 

User Requirements Document 

Visible/Infrared Imager Radiometer Suite (on NPP and NPOESS) 

Visiting Scientist 

Work Breakdown Structure 

World Meteorological Organization 

Work Package 

Work Package Description 

Workshop 

World Wide Web Consortium 

XML (eXtensible Markup Language ) Metadata Interchange 

eXtensible Markup Language 

Zentral Anstalt für Meteorologie und Geodynamik 

1.5 References 

1.5.1 Applicable Documents 

[AD1] H-SAF Development Proposal - Issue 2.1, 15 May 2005 

[AD2] 

[AD3] 

[AD4] 

[AD5] 

[AD6] 

[AD7] 

[AD8] 

[AD9] 

[AD10] 

[AD11] 

[AD12] 

H-SAF Project Plan (PP). Ref.: SAF/HSAF/PP/2.2 

H-SAF Configuration Management Plan (CMP). Ref.: SAF/HSAF/CMP/1.0 

H-SAF Users Requirement Document (URD). Ref.: SAF/HSAF/URD/2.1 

H-SAF SAF Preliminary Design Review Organization Note. Ref.: 

EUM/PPS/PRC/06/0125 

H-SAF System Requirements Document (SRD). Ref.: SAF/HSAF/SRD/2.1 

H-SAF System Design Document (SDD). Ref.: SAF/HSAF/SDD/2.1 

H-SAF Component Requirements Document (CRD). Ref.: SAF/HSAF/CRD/1.1 

H-SAF Component Design Document (CDD). Ref.: SAF/HSAF/CDD/1.1 

H-SAF Interface Control Document (ICD). Ref.: SAF/HSAF/ICD/1.0 

Algorithmic Software Development Guidelines Document (ASDGD). Ref.: 

SAF/HSAF/ASDGD/0.1 

System Integration, Verification & Validation Plan (SIVVP). Ref.: SAF/HSAF/SIVVP/1.1





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[AD13] 

[AD14] 

[AD15] 

[AD16] 

[AD17] 

[AD18] 

[AD19] 

Guide to Software Configuration Management. Ref.: ESA PSS-05-09 Issue 1 Rev.1 

SAF Software Development Guidelines. Ref.: SAF/NET/EUM/SW/GD/MTR/01 

H-SAF Component Verification File (CVERF). Ref.: SAF/HSAF/CVERF/1.1 

H-SAF Algorithmic Software Development Guidelines Document (ASDGD) – internal 

issue – Ref.: SAF/HSAF/ASDGD/0.5 

H-SAF System Verification File (SVERF). Ref.: SAF/HSAF/SVERF/0.6 

Algorithms Theoretical Definition Document (ATDD). Ref.: SAF/HSAF/ATDD/1.0 

H-SAF System/Software Version Document (SSVD). Ref.: SAF/HSAF/SSVD/0.6 

1.5.2 Reference Documents 

[RD1] 

[RD2] 

[RD3] 

[RD4] 

[RD5] 

[RD6] 

[RD7] 

[RD8] 

[RD9] 

[RD10] 

[RD11] 

[RD12] 

[RD13] 

[RD14] 

[RD15] 

EUM.TD.08 MSG - Image Data Dissemination Service 

EPS AMSU-A L1 Product Generation Specification 

EPS AMSU-A L1 Product Format Specification 

EPS MHS L1 Product Generation Specification 

EPS MHS L1 Product Format Specification 

MetOp-AVHRR documentation VCS Engineering website (http://rst.vcs.de/) 

NASA-MODIS documentation at NASA website 

(http://directreadout.gsfc.nasa.gov/index.cfm) 

Meteosat-SEVIRI documentation at EUMETSAT website 

(http://www.eumetsat.int/Home/Main/What_We_Do/Satellites/Meteosat_Second_Gener 

ation/index.html=en) 

EUMETSAT-EUMETCast documentation at EUMETSAT website 

(http://www.eumetsat.int/Home/Main/What_We_Do/EUMETCast/index.html=en) 

EPS NRT User Interface Specification. Ref.: EPS-ASPI-IR-0648 

National Oceanic and Atmospheric Administration (NOAA) Low-Rate Information 

Transmission (LRIT) System. Ref.: http://noaasis.noaa.gov/LRIT/ 

WMO - WWWDM specifications. Ref.: http://www.wmo.ch/web/www/WDM/wdm.html 

MARS – Meteorological Archive and Retrieval System, MARS User Guide (for Data 

Retrieval), Revision 11 – September 1995, Meteorological Bulletin B6.7/3, ECMWF 

Reading, England. Ref.: http://www.wmo.ch/web/www/WDM/wdm.html 

MSG Level 1.5 Image Data Format Description. Ref.: ESA PSS-05-09 Issue 1 Rev.1 

ECSS Standard on Space engineering. Verification. Ref.: ECSS-E-10-02A





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[RD16] 

[RD17] 

[RD18] 

[RD19] 

[RD20] 

[RD21] 

[RD22] 

[RD23] 

[RD24] 

ECSS Standard on Space engineering. Testing. Ref.: ECSS-E-10-03A 

ECSS Standard on Space engineering. Software - Part 1: Principles and requirements. 

Ref.: ECSS-E-40 Part 1B 

ECSS Standard on Space engineering. Software - Part 2: Document requirements 

definitions (DRDs). Ref.: ECSS-E-40 Part 2B 

Object Management Group, Inc. (OMG), “Unified Modelling Language: Infrastructure” 

Version 2.0 – 05/072005 

Object Management Group, Inc. (OMG), “Unified Modelling Language: Superstructure” 

Version 2.0 – 05/072005 

Object Management Group, Inc. (OMG), “Unified Modelling Language: Diagram 

Interchange” Version 2.0 – 05/072005 

Object Management Group, Inc. (OMG), “Unified Modelling Language: Business 

Modelling” Version 2.0 – 05/072005 

Brown, Alan W. & Wallnau, Kurt C. "Engineering of Component-Based Systems". 

Component-Based Software Engineering: Selected Papers from the Software 

Engineering Institute. Los Alamitos, CA: IEEE Computer Society Press, 1996 

Jim Rumbaugh, Ivar Jacobson, Grady Booch. “The Unified Modeling Language 

Reference Manual (2nd edition)” 

2 Overview of the Interfaces 

2.1 Naming Convention 

2.1.1 Interfaces Identification namespace 

The following convention has been adopted for the external and internal interface naming: 

+ + + + 

where 

EI or II = in case of external interface, in case of internal interface 

Id Subsytems = Identifier of the involved subsystem, according to the following 

specification:





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PR: Precipitation Subsystem; 

SM: Soil Moisture Subsystem; 

SP: Snow Parameters Subsystem; 

HV: Hydro Validation Subsystem; 

OM: Offline Monitoring Subsystem. 

Prog_number = progressive number for the interfaces of the specified type 

belonging to the specified subsystem 

e.g.: EI_PR_23 is the identifier of the external interface n.23 of the Precipitation 

Subsystem. 

e.g.: II_SM_14 is the identifier of the internal interface n.14 of the Soil Moisture 

Subsystem. 

2.1.2 Interface Data namespace 

The following convention has been adopted for the external and internal exchanged data 

identification: 

+ + + + 

Where 

ED or ID = in case of external interface data, in case of internal 

interface data 

Source ID = a as source identifier,in case of external interface data. 

In case of internal interface a notation like specifying the two involved 

subsystems. 

Prog_number = progressive number for the interface data of the specified type 

belonging to the specified subsystem 

e.g.: 

ED_METOP_11 

is the identifier of external interface data n.11 of the Metop Satellite data source.





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e.g.: 

ID_PR_OM_6 

is the identifier of internal interface data n.6 exchanged between the Precipitation 

Subsystem and the Offline Monitoring Subsystem. 

For specification of data acquired from satellite data sources, the following notation is 

used: 

e.g.: MetOp-MHS. 

2.2 H-SAF External Interfaces 

2.2.1 Introduction 

 

External interfaces involve at least one H-SAF external actor (system or user not 

belonging to the H-SAF context) and at least one H-SAF internal actor (subsystem, 

component or subcomponent). 

Interfaces among external users without the participation of an H-SAF element are not 

classified as “H-SAF External Interface”, even when exchanged data is produced inside H- 

SAF system and/or disseminated through an H-SAF component. 

The external interfaces are here classified into two groups: 

Data Acquisition interfaces: have as external actor a source data (Satellite data 

sources) or a system producing input data for the H-SAF generation chains. The 

data flow starts outside and goes toward internal element of H-SAF. 

Data Distribution interfaces: have as external actor a user or a system to which 

products and reports generated inside H-SAF are sent. The data flow starts inside 

H-SAF and goes towards external actors. 

2.2.2 Data Acquisition Interfaces Overview 

Here are detailed the external interfaces that H-SAF requires in order both for acquiring 

input data and for disseminating products to users during operational phase (Table 1). 

Offline Monitoring Subsystem has no data acquisition interfaces. 

External actor can be an Organization as well an Institute. Internal actor is an H-SAF 

component.





Date: 20/06/2008 

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Interface ID 

Interface 

Type / 

Protocol 

Involved Data 

Component/Organization 

involved 

External 

Internal 

Precipitation Subsystem interfaces 

EI_PR_10 Radio Meteosat-SEVIRI Data Meteosat PR-AP 

EI_PR_30 

Radio 

NOAA-AMSU Data (AMSU-A, 

AMSU-B) 

NOAA 

PR-AP 

EI_PR_40 Radio MetOp-MHS Data MetOp PR-AP 

DMSP-SSM/I Data (DMSP-15 

Satellite), 

EI_PR_50 

FTP 

DMSP-SSMIS Data 

UK Met Office 

PR-AP 

(DMSP-16, DMSP-17, DMSP- 

18, DMSP-19 Satellites) 

EI_PR_100 GTS Synoptic / Observation Data WMO-GTS 

PR-GC1- 

PG1, PR- 

GC1-PG2, 

PR-GC1- 

PG3, PR- 

GC1-PG4, 

PR-GC2-PG 

EI_PR_110 

Auxiliary 

Data 


Auxiliary Data 


Sources 

PR-GC1- 

PG1, PR- 

GC1-PG2, 

PR-GC1- 

PG3, PR- 

GC1-PG4, 

PR-GC2-PG 

EI_PR_120 

EUMETCast 

AMSU-A, AMSU-B, MHS Data 

(NOAA and MetOp Satellites), 

Meteosat-SEVIRI Data 

EUMETSAT 

PR-AP 

DMSP-SSM/I, DMSP-SSMIS 

EI_PR_130 FTP NWP - Boundary Conditions ECMWF PR-AP





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Type / 

Protocol 

Involved Data 


involved 

External 

Internal 

EI_PR_140 

GTS 

NWP - Meteorological 

messages 

WMO-GTS 

PR-AP 

Soil Moisture Subsystem interfaces 

EI_SM_10 

EUMETCast 

Level 2 MetOp/ASCAT 

product 

EUMETSAT 

SM-GC1- 

RPG, SM- 

GC2-VPG 

EI_SM_15 

EUMETCast 

Level 1 MetOp/ASCAT 

product 

EUMETSAT 

SM-GC1- 

GPG 

EI_SM_20 

Archive 

retrieval 

ERS 1/2 AMI-SCAT Data (*) ERS 1/2 

Archive 

SM-GC1- 

VPG 

EI_SM_30 

Archive 

retrieval 

Envisat/ASAR Data 

Envisat 

Archive 

SM-GC2- 

RPG 

EI_SM_50 

Archive 

retrieval 



Sources 

SM-GC1- 

RPG, SM- 

GC1-GPG 

EI_SM_90 GTS Synoptic / Observation Data WMO-GTS 

SM-GC1- 

VPG 

Snow Parameters Subsystem interfaces 

EI_SP_10 EUMETCast NOAA-AVHRR Data NOAA SP-GC1-AP 

EI_SP_15 NOAA NOAA-AVHRR Data NOAA Archive SP-GC2-AP 

EI_SP_20 Radio NOAA-AVHRR Data NOAA SP-GC1-AP 

EI_SP_30 Radio NOAA-AVHRR Data NOAA SP-GC2-AP 

EI_SP_40 EUMETCast MetOp-AVHRR Data MetOp SP-GC1-AP 

EI_SP_50 Radio MetOp-AVHRR Data MetOp SP-GC1-AP 

EI_SP_60 Radio MetOp-AVHRR Data MetOp SP-GC2-AP 

EI_SP_70 FTP EOS Aqua-MODIS Data NASA Archive SP-GC1-AP





Date: 20/06/2008 

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Type / 

Protocol 

Involved Data 


involved 

External 

Internal 

EI_SP_75 FTP EOS Aqua-MODIS Data NASA Archive SP-GC2-AP 

EI_SP_80 Radio EOS Aqua-MODIS Data EOS-Aqua SP-GC1-AP 

EI_SP_85 FTP EOS Aqua-AMSR-E Data EOS-Aqua SP-GC1-AP 

EI_SP_90 FTP EOS Aqua-AMSR-E Data EOS-Aqua SP-GC2-AP 

EI_SP_110 FTP EOS Terra-MODIS Data NASA Archive SP-GC1-AP 

EI_SP_120 FTP EOS Terra-MODIS Data NASA Archive SP-GC2-AP 

EI_SP_125 Radio EOS Terra-MODIS Data EOS-Terra SP-GC1-AP 

EI_SP_130 FTP EOS Aqua-AMSR-E Data NASA Archive SP-GC1-AP 

EI_SP_135 FTP EOS Aqua-AMSR-E Data NASA Archive SP-GC2-AP 

EI_SP_140 EUMETCast Meteosat-SEVIRI Data EUMETSAT SP-GC1-AP 

EI_SP_145 EUMETCast Meteosat-SEVIRI Data EUMETSAT SP-GC2-AP 

EI_SP_180 

FTP 

DMSP-SSM/I Data, 

DMSP-SSMIS Data 

UK Met Office SP-GC2-AP 

EI_SP_200 GTS Synoptic / Observation Data WMO-GTS SP-GC1-AP 

EI_SP_210 GTS Synoptic / Observation Data WMO-GTS SP-GC2-AP 

EI_SP_220 FTP NASA Archived Data NASA Archive SP-GC1-AP 

EI_SP_230 FTP NOAA Archived Data NOAA Archive SP-GC1-AP 

EI_SP_240 FTP ECMWF Archived Data ECMWF SP-GC1-AP 

EI_SP_250 FTP NASA Archived Data NASA Archive SP-GC2-AP 

EI_SP_260 FTP NOAA Archived Data NOAA Archive SP-GC2-AP 

EI_SP_270 FTP ECMWF Archived Data 

ECMWF 

Archive 

SP-GC2-AP 

EI_SP_280 

Archive 

retrieval 



Sources 

SP-GC1-AP 

EI_SP_290 Archive Auxiliary Data Auxiliary Data SP-GC2-AP





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Type / 

Protocol 

Involved Data 


involved 

External 

Internal 

retrieval 

Sources 

Hydro Validation Subsystem interfaces 

EI_HV_10 EUMETCast H-SAF products EUMETSAT HV-AP 

EI_HV_20 GTS H-SAF products WMO-GTS HV-AP 

(*) used only in absence of ASCAT data 

Table 1 H-SAF External Interfaces for Data Acquisition 

Note: data source referring to satellite/instrument to be used in experimentally way or 

which availability is not certain are not mentioned in the above table. For more details see 

table 5 of SDD ([AD7]). 

2.2.3 Data Distribution Interfaces Overview 

The distribution of products to operational End-Users such as Meteorological Services, 

certain Units of Hydrological Services and Civil Protection, conditioned by severe 

timeliness requirements, will be performed directly from the production centres, through 

the following interfaces (Table 2). 

Hydro Validation Subsystem has no data distribution interfaces. 

External actor can be an Organization as well an Institute. Internal actor is an H-SAF 

component. 


Interface Type / 

Protocol 

Involved Data 


involved 

External 

Internal 

Precipitation Subsystem interfaces 

EI_PR_500 

EUMETCast 

PR-OBS-1, PR-OBS-2, 


PR-OBS-5, PR-ASS-1 

EUMETSAT 

PR-DIS





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EI_PR_510 

GTS 




WMO-GTS 

PR-DIS 

EI_PR_520 

UMARF Client 




UMARF 

PR-DIS 

Soil Moisture Subsystem interfaces 

EI_SM_500 

UMARF Client 

SM-OBS-1 backup (*), 

SM-OBS-2, SM-ASS-1 

UMARF 

SM-DIS 

EI_SM_510 

EUMETCast 

SM-OBS-1 backup (*), 

SM-OBS-2 

EUMETSAT 

SM-DIS 

EI_SM_520 GTS SM-OBS-2, SM-ASS-1 WMO-GTS SM-DIS 

Snow Parameters Subsystem interfaces 

EI_SP_500 

UMARF Client 

SN-OBS-1, SN-OBS-2, 

SN-OBS-3, SN-OBS-4 

UMARF 

SP-DIS 

EI_SP_520 

EUMETCast 



EUMETSAT 

SP-DIS 

EI_SP_540 

GTS 



WMO-GTS 

SP-DIS 

Offline Monitoring Subsystem interfaces 

EI_OM_500 

UMARF Client 

over scp/ssh 

H-SAF Products EUMETSAT OM-DIS 

Table 2 H-SAF External Interfaces for Data Distribution 

(*) produced only in absence of SM-OBS-1 generated at EUMETSAT 

The distribution of products to the scientific users, specifically for Countries involved in the 

Hydrological Validation Programme, will occur off-line (though in a reasonably short time), 

through the involvement of U-MARF, following procedures already being experienced in 

other SAF’s.





Date: 20/06/2008 

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2.2.4 External Data 

The following table summarizes external data received by H-SAF; this table will be refined 

during development phase. 

Data ID Definition Data source Interface ID Products involved 

ED_METOP_20 MHS Data MetOp 

ED_METOP_30 AVHRR Data MetOp 

ED_NOAA_10 AMSU Data NOAA 

ED_NOAA_20 AVHRR Data NOAA 

ED_NOAA_30 Archived data NOAA 

ED_EOSA_20 MODIS Data EOS-Aqua 

ED_EOSA_30 AMSR-E Data EOS-Aqua 

ED_EOST_10 MODIS Data EOS-Terra 

ED_MTS_10 SEVIRI Data Meteosat 

EI_PR_40 

EI_PR_120 

EI_SP_40 

EI_SP_50 

EI_SP_60 

EI_PR_30 

EI_PR_120 

EI_SP_10 

EI_SP_15 

EI_SP_20 

EI_SP_30 

EI_SP_230 

EI_SP_260 

EI_SP_70 

EI_SP_75 

EI_SP_80 

EI_SP_85, 

EI_SP_90 

EI_SP_130 

EI_SP_135 

EI_SP_110 

EI_SP_120 

EI_SP_125 

EI_PR_10 

EI_PR_120 

EI_SP_140 

Precipitation 

products 

Snow Parameters 

products 

Precipitation 

products 


products 


products 


products 


products 


products 

Precipitation 

products, 

Snow Parameters





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EI_SP_145 

products 

ED_ERS_10 

AMI-SCAT 

Data 

ERS 1/2 

EI_SM_20 

Soil Moisture 

products 

ED_ERS_15 

Envisat/ASAR 

Data 

Envisat 

EI_SM_30 

Soil Moisture 

products 

ED_DMSP_10 SSM/I Data DMSP 

ED_DMSP_20 SSMIS Data DMSP 

ED_NASA_10 Archived Data NASA 

ED_ECMWF_10 Archived Data ECMWF 

EI_PR_50 

EI_PR_120 

EI_SP_180 

EI_PR_50 

EI_PR_120 

EI_SP_180 

EI_SP_220 

EI_SP_250 

EI_SP_240 

EI_SP_270 

Precipitation 

products 


products 

Precipitation 

products 


products 


products 


products 

ED_ECMWF_20 

NWP Data 

(Boundary 

Conditions) 

ECMWF 

EI_PR_130 

Precipitation 

products 

ED_SM25_10 

Level-1 

MetOp/ASCAT 

products 

EUMETSAT 

EI_SM_10 

EI_SM_15 

Soil Moisture 

products 

ED_WMOGTS_10 

SYNOP 

Archived Data 

WMO-GTS 

EI_SP_200 

EI_SP_210 


products 

ED_WMOGTS_20 

Meteorological 

messages 

(NWP) 

WMO-GTS 

EI_PR_140 

Precipitation 

products 

ED_SYNOPWD_1 

0 

SYNOP / 

Observation 

Data 

WMO-GTS 

EI_PR_100, 

EI_SM_90 

Precipitation 

products, 

Soil Moisture





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products 

ED_PRAUX_10 


Auxiliary data 

sources 

EI_PR_110 

Precipitation 

products 

ED_SMAUX_10 



Sources 

EI_SM_50 

Soil Moisture 

products 

ED_SPAUX_10 



Sources 

EI_SP_280, 

EI_SP_290 


products 

2.3 H-SAF Internal Interfaces 

2.3.1 Introduction 

Table 3 H-SAF External Data 

Internal interfaces involve components and/or sub-components belonging to H-SAF 

subsystems. The two items involved in a specified interface can belong to the same 

subsystem (thus it is a subsystem internal interface), or they can belong to different 

subsystems (interface regarding H-SAF internal data distribution or internal data 

exchange). 

Subsystem internal interfaces related to very simple data flows, not worth having a 

detailed specification, are omitted in present document. These cases are usually 

component/subcomponent internal data flows, since they involve members of the same 

sub-component not having a deeper connotation in the model (they have not been 

represented by sub-sub components). 

An example of such case is the Snow Status Model internal sending, as a task achieved 

by SP-GC1-PG sub-component during the SP-GC1 product generation: an SP-GC1-PG 

internal actor sends via email the updated model to another SP-GC1-PG internal actor. 

Interfaces involving different subsystems’ components are treated once inside one of the 

two subsystem internal interfaces specification: they are not repeated for both subsystems. 

As an arbitrary rule, the interface specification is given for the source component, which is 

the component from which the data flow starts. 

An example of such case is the Hydro Validation reports sending by HV-VPR component 

of Hydro Validation Subsystem to OM-CEN component of Offline Monitoring Subsystem. 

Since there is obviously only one interface (II_HV_20), it is specified in one section of the 

document (section regarding Hydro Validation Subsystem internal interfaces).





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2.3.2 Precipitation Subsystem Internal Interfaces 


ID 


Type / 

Protocol 

Involved Data 

Components / Subcomponents 

involved 

Source 

Target 

II_PR_10 LAN Pre-processed Satellite Data PR-AP 

PR-GC1- 

PG1, PR- 

GC1-PG2, 

PR-GC1- 

PG3 

II_PR_20 

LAN 

Pre-processed Satellite Data or 

low level Precipitation products 

PR-AP 

PR-GC2-PG 

II_PR_30 LAN PR-OBS-1 

II_PR_40 LAN PR-OBS-2 

II_PR_50 LAN PR-OBS-3, PR-OBS-4 

PR-GC1- 

PG1 

PR-GC1- 

PG2 

PR-GC1- 

PG3 

PR-GC1- 

PG3 

PR-GC1- 

PG3 

PR-GC1- 

PG4 

II_PR_170 

LAN 

PR-OBS-1, PR-OBS-2, PR-OBS- 

3, PR-OBS-4, PR-OBS-5 

PR-GC1- 

PG1, PR- 

GC1-PG2, 

PR-GC1- 

PG3, PR- 

GC1-PG4 

PR-GC1-QC 

II_PR_180 

LAN 

PR-OBS-1, PR-OBS-2, PR-OBS- 

3, PR-OBS-4, PR-OBS-5 

PR-GC1- 

PG1, PR- 

GC1-PG2, 

PR-GC1- 

PG3, PR- 

GC1-PG4 

PR-DIS 

II_PR_190 LAN PR-ASS-1 PR-GC2-PG PR-GC2-QC 

II_PR_200 LAN PR-ASS-1 PR-GC2-PG PR-DIS 

II_PR_210 LAN Observation Data PR-AP PR-GC2-PG 

II_PR_300 LAN All Precipitation products PR-DIS OM-CEN





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Table 4 Precipitation Subsystem Internal Interfaces 

2.3.3 Soil Moisture Subsystem Internal Interfaces 


ID 

Interface Type / 

Protocol 

Involved Data 

Components / Sub-components 

involved 

Source 

Target 

II_SM_10 TCP/IP SM-ASS-1 SM-GC2-VPG SM-DIS 

II_SM_30 EUMETCast SM-OBS-1 backup SM-GC1-GPG SM-GC1-QC 

II_SM_31 FTP SM-OBS-2 SM-GC1-RPG SM-GC1-QC 

II_SM_32 FTP SM-OBS-2 SM-GC1-RPG SM-DIS 

II_SM_35 FTP SM-OBS-1 backup SM-GC1-GPG SM-DIS 

II_SM_40 

FTP 

All Soil Moisture 

products 

SM-GC1-DIS 

OM-CEN 

II_SM_60 FTP SM-ASS-1 SM-GC2-VPG SM-GC2-QC 

Table 5 Soil Moisture Subsystem Internal Interfaces 

2.3.4 Snow Parameters Subsystem Internal Interfaces 

As explained in the introduction (see 2.3.1), uninteresting internal interfaces are omitted. 

For Snow Parameters Subsystem, omitted interfaces are those related to the SP-GC1-PG 

internal sending of Models aimed to the product generation, via email. Specifically: 

Model for Snow Status (exchanged between TKK/LST and SYKE) 

Model for SCA with flag for snow status (exchanged between FMI and SYKE) 

Model for SWE mapping (exchanged between TKK/LST and FMI). 

All the data like: 

Archived Synoptic Weather 

Hydro meteorological, Snow Course, Flow Data 

Snow Cover, Fractional Snow Cover, SWE 

SYNOP Data (Archived & NRT)





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are modelled like “Auxiliary data”. 

Table below (Table 1) lists the Snow Parameters Subsystem relevant internal interfaces. 


ID 


Type / 

Protocol 

Involved Data 

Components / Subcomponents 

involved 

Source 

Target 

II_SP_10 FTP Pre-processed Satellite Data SP-GC1-AP SP-GC1-PG 

II_SP_20 FTP Pre-processed Satellite Data SP-GC2-AP SP-GC2-PG 

II_SP_70 FTP Auxiliary Data SP-GC1-AP SP-GC1-QC 

II_SP_80 FTP Auxiliary Data SP-GC2-AP SP-GC2-QC 

II_SP_120 

FTP 

SN-OBS-1, SN-OBS-2, SN-OBS- 

3, SN-OBS-4 

SP-DIS 

OM-CEN 

II_SP_300 

FTP 

SN-OBS-1b, SN-OBS-3b, SN- 

OBS-4b 

SP-GC2-PG 

SP-GC1-PG 

Table 6 Snow Parameters Subsystem Internal Interfaces 

2.3.5 Hydro Validation Subsystem Internal Interfaces 

Hydro Validation Subsystem internal interfaces are here listed: 


ID 

Interface Type 

/ Protocol 

Involved Data 


involved 

Source 

Target 

II_HV_10 

FTP 

Hydro Validation Impact 

Study Reports 

HV-AP 

HV-VPR 

II_HV_20 FTP Hydro Validation Report HV-VPR OM-CEN 

Table 7 Hydro Validation Subsystem Internal Interfaces 

2.3.6 Offline Monitoring Subsystem Internal Interfaces 

Offline Monitoring Subsystem internal interfaces are here listed: 


ID 

Interface Type 

/ Protocol 

Involved Data 


involved





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Source 

Target 

II_OM_10 

LAN 

H-SAF products, 

Performance reports 

OM-CEN 

OM-ARC 

II_OM_20 LAN H-SAF products OM-CEN OM-REP 

II_OM_30 LAN Performance reports OM- REP OM- ARC 

II_OM_40 

LAN 

H-SAF products, 

Performance reports 

OM-ARC 

OM-DIS 

II_OM_50 LAN Performance reports OM-DIS PR-AP 

II_OM_60 FTP Performance reports OM-DIS SM-GC1-PG 

II_OM_70 FTP Performance reports OM-DIS SP-GC1-AP 

II_OM_80 FTP Performance reports OM-DIS SP-GC2-AP 

Table 8 Offline Monitoring Subsystem Internal Interfaces 

3 Interface Data Flows 

3.1 Precipitation Subsystem Data Flows 

3.1.1 Description 

The subsystem data flows start with the acquisition of satellite raw and observation data 

through specific interfaces. The raw data are pre-processed by the pre-processing 

component and then passed to the generation chains relevant to PR-GC1 and PR-GC2 

components. Once generated, the products are calibrated/validated and passed to the 

dissemination component. 

3.1.2 Exchanged Data 

Data ID Definition Data source Interface ID 

ED_MTS_10 SEVIRI Data Meteosat 

ED_METOP_20 MHS Data MetOp 

EI_PR_10, 

EI_PR_120 

EI_PR_40, 

EI_PR_120 

ED_NOAA_10 AMSU Data NOAA EI_PR_40,





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EI_PR_120 

ED_DMSP_10 SSM/I Data DMSP 

ED_DMSP_20 SSMIS Data DMSP 

EI_PR_50, 

EI_PR_120 

EI_PR_50, 

EI_PR_120 

ED_ECMWF_20 NWP - Boundary Conditions ECMWF EI_PR_130 

ED_WMOGTS_10 

NWP - Meteorological 

messages 

WMO-GTS 

EI_PR_140 

ED_SYNOPWD_10 SYNOP / Observation Data WMO-GTS EI_PR_100 

ED_PRAUX_10 



Sources 

EI_PR_110 

Table 9 Precipitation Subsystem Interface Data





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3.1.3 Interface States 

sm PR-GC1 State Diagram 

[No Data] 

Initial 

Ready to Receiv e 

Start acquisition 

[New data 

available] 

PR-GC1 Acquisition 

Start 

preprocessing 

[Data acquired] 

PR-GC1 Preprocessing 

Generate product 

[New 

preprocessed data 

available] 

Quality Control 

Start Q.C. [New product available] 

[End QC] 

PR-GC1 Product 

generation 

Archiv ing 

Archive [New calibrated/validated 

product available] 

Disseminate [New 

calibrated/validated product 

available] 

Dissemination 

[End Local Archiving] 

[Dissemination 

finished] 

Final 

Figure 1 State Diagram of PR-GC1 Precipitation Subsystem





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sm PR-GC2 State Diagram 

[No Data] 

Initial 


Start acquisition [Preprocessed 

data ] 


Generate product [Preprocessed 

data available] 


Starting Q.C. [New product 

available] 

[End QC] 

PR-GC2 

ProductGeneration 

Archive [New calibrated/validated 


Archiv ing 


calibrated/validated product 

available] 

Dissemination 



finished] 

Final 

Figure 2 State Diagram of PR-GC2 Precipitation Subsystem





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3.1.4 Interface Processes 

Process name 

PR-GC1 Acquisition and 


PR-GC1 Pre-processing 

PR-GC1 Product 

Generation and PR-GC2 

Product Generation 


Archiving 

Dissemination 

Description 

Acquisition of raw data from satellite before the pre-processing 

Transformation of raw data into pre-processed data 

Elaboration of input (pre-process data, auxiliary data, products, 

etc.) for final products generation 

Control of the products quality and setting of the quality control 

flags 

Local archiving of generated products 

Transmit data to the users and to the Offline Monitoring 

subsystem 

Table 10 Precipitation Subsystem Interface Processes 

3.1.5 Data Flows





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Satellites 

UK Met Office 

EUMETCast 


Sources 

Raw 

data 

ECMWF 

WMO GTS 

Acquisition 

NWP 

Model 

Output 

Auxiliary 

Data 

Synoptic/Observation Data & 

Meteorological messages 

NWP 

POP External 

Parameters 

Preprocessing 

Preprocesed 

Satellite Data 

PR-GC1 

Product 

Generation 

OBS 

Precipitation 

products 

Q.C. OBS 

Precipitation 

products 


Archiving 

Dissemination 

OBS Precipitation 

products 

Offline Monitoring 

Subsystem 

OBS 

Precipitation 

products 

End-Users 

Figure 3 Data Flow Diagram of PR-GC1 Component for PR-OBS-1 & 2 

The above figure is logically referred both to the PR-OBS-1 and PR-OBS-2 generation 

processes. The only differences between them are the satellite and auxiliary data used.





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Satellites 

UK Met Office 

EUMETCast 


Sources 

Raw 

data 

ECMWF 

WMO GTS 

Acquisition 

NWP 

Model 

Output 

Auxiliary 

Data 

Synoptic/Observation 

Data & Meteorological 

messages NWP 

OBS 

Precipitation 

products 

Preprocessing 

Preprocesed 


PR-GC1 

Product 

Generation 


Q.C. OBS 

Precipitation 

products 

PR-OBS-1 and 

PR-OBS-2 

products 


products 

Archiving 

Dissemination 

OBS 

Precipitation 

products 


Subsystem 

End-Users 

Figure 4 Data Flow Diagram of PR-GC1 Component for PR-OBS-3 & 4 

The above figure is logically referred both to the PR-OBS-3 and PR-OBS-4 generation 

processes. The only differences between them are the algorithms used.





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WMO GTS 

ECMWF 

Synoptic/Observation 

Data & Meteorological 

messages NWP 


Sources 

PR-OBS-3 and 

PR-OBS-4 

products 

NWP 

Model 

Output 

PR-GC1 

Product 

Generation 

Q.C. 

Auxiliary 

Data 

OBS 

Precipitation 

products 

Q.C. OBS 

Precipitation 

products 

Auxiliary 

Data 



products 

Archiving 

Dissemination 

OBS 

Precipitation 

products 


Subsystem 

End-Users 

Figure 5 Data Flow Diagram of PR-GC1 Component for PR-OBS-5





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Sources 

Satellites 

ECMWF 

Auxiliary 

Data 

WMO GTS 

Observation 

Data 

Satellite 

observation 

NWP 

Model 

Output 

FDP External 

Parameters 

Acquisition 

Disaggregated 

Precipitation 

products 

PR-GC2 Data 

Assimilation/ 

Product 

Generation 

Disaggregated 

products 

Downscaled/ 

validated 

product 

Quality 

Control 

Archiving 

Dissemination 

ASS 

Precipitation 

products 

ASS Precipitation Products 


Subsystem 

End-Users 

Figure 6 Data Flow Diagram of PR-GC2 Component for PR-ASS-1 

3.2 Soil Moisture Subsystem Data Flows 


The subsystem data flows start with the acquisition of Level-1 and Level-2 ASCAT 

products coming from EUMETSAT performed by SM-GC1 and SM-GC2 component 

through specific interfaces. These products are processed by the processing sub-





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components. The new generated products are calibrated/validated and passed to the 

dissemination component. 

Note: purpose of SM-GC1 is the generation of the regional (or disaggregated) observation 

surface soil moisture product (SM-OBS-2) and, only if needed, the backup of global 

observation product generated at EUMETSAT (SM-OBS-1). 



ED_ERS_10 AMI-SCAT Data ERS 1/2 EI_SM_20 

ED_ERS_15 Envisat/ASAR Data Envisat EI_SM_30 

ED_SM25_10 

Level-1 MetOp/ASCAT 

products 

EUMETSAT 

EI_SM_10, EI_SM_15 

ED_SYNOPWD 

_10 

SYNOP / Observation 

Data 

WMO-GTS 

EI_SM_90 

ED_SMAUX_10 



Sources 

EI_SM_50 

Table 11 Soil Moisture Subsystem Interface Data 

3.2.3 Interface State





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sm SM-GC1 State Diagram 

[No Data] 


Start acquisition [Pre-processed data available] 

SM-GC1 Acquisition 

Initial 

Generate Product [Preprocessed data available] 


Start Q.C. [New 


[End QC] 

SM-GC1 Product 

generation 

Archive [New validated 


Disseminate [New validated 


Archiv ing 

Dissemination 


finished] 


Final 

Figure 7 State Diagram of SM-GC1 Component





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sm SM-GC2 State Diagram 

[No Data] 


Start Acquisition [Processed data available] 


Initial 

Generate Product [Processed data available] 


Start Q.C. [New product 

available] 

[End QC] 


generation 





Archiv ing 

Dissemination 



finished] 

Final 

Figure 8 State Diagram of SM-GC2 Component





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Process name 

SM-GC1 Acquisition, 



Generation, 


Generation 


Archiving 

Dissemination 

Description 

Processes in charge of acquiring products from EUMETSAT 

Elaboration of each input (pre-process data, auxiliary data 

sources etc.) aimed to the generation of the final products 

Process in charge of control the products quality and setting 

the quality control flag 


Transmit data to the users and to the Offline Monitoring 

subsystem 

Table 12 Soil Moisture Subsystem Interface Processes





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3.2.5 Data Flows 

Global parameters 

database 


Sources 

EUMETSAT 

(PPF) 

Level 1 

ASCAT 

product 

Acquisition 

Global 

Parameters 

Land Cover, 

DEM, GIS 

Precipitation, 

Snow, 

Temperature 

Level 1 

ASCAT 

product 

Level 1 

ASCAT 

product 

SM-GC1 

Product 

generation 

SM-OBS-1 

backup (limited 

to Europe) 

Quality 

control 

Soil Moisture Product 

database 

Q.C. SM-OBS-1 

backup 

SM-OBS-1 

backup 

SM-OBS-1 

backup 

SM-OBS-1 

backup 

Archiving 

Dissemination 

SM-OBS-1 

backup 


subsystem 

Figure 9 Data Flow Diagram of the SM-GC1 Component for SM-OBS-1 backup





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EUMETSAT 

(PPF) 

Level 2 

ASCAT 

product 

(SM-OBS-1) 

Acquisition 

Envisat archive 

ASAR data 

European parameters 

database 

European 

Parameters 

Land Cover, 

DEM, GIS 


Sources 


Snow, 

Temperature 

SM-OBS-1 

SM-OBS-1 

Disaggregated 

products 

SM-OBS-1 


database 

SM-GC1 

Product 

generation 

Downscaled/ 

validated 

product 

Quality 

control 

SM-OBS-2 

SM-OBS-2 

Archiving 


subsystem 

SM-OBS-2 

Dissemination 

Figure 10 Data Flow Diagram of the SM-GC1 Component for SM-OBS-2





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EUMETSAT 

(PPF) 

Level 2 

ASCAT 

product 

(SM-OBS-1) 

Acquisition 

WMO GTS 

Synoptic/ 

Observation data 

ERS 1/2 

archive 

AMI-ASCAT 

data 

IFS 

First Guess 

Land cover, 

DEM, GIS 



Snow, 

Temperature 

SM-OBS-1 

SM-OBS-1 

Assimilated 

products 


database 


generation 

(Assimilation) 

Quality 

control 

Q.C. SM-ASS-1 

SM-ASS-1 

SM-ASS-1 

SM-ASS-1 

Archiving 

Dissemination 

ZAMG product 

database 

Figure 11 Data Flow Diagram of the SM-GC2 Component for SM-ASS-1





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3.3 Snow Parameters Subsystem Data Flows 


The subsystem data flows start with the acquisition of raw data from satellites, performed 

by SPG-GC1 and SP-GC2 components through specific interfaces. All data is preprocessed 

respectively by the Finnish and Turkish pre-processing subcomponents and 

then passed to the relevant generation chains. A merging phase between Finnish and 

Turkish products is managed by the Finnish generation chain. Validation process of all 

products can lead to the rejection of those not considered validable: in these cases the 

data flow ends and the subsystem turns again into its “ready to receive” status. 

Validated products are quality flagged and then disseminated. 



ED_METOP_30 AVHRR Data MetOp 

ED_NOAA_20 AVHRR Data NOAA 

EI_SP_40, EI_SP_50, 

EI_SP_60 


EI_SP_20, EI_SP_30 

ED_NOAA_30 Archived data NOAA EI_SP_230, EI_SP_260 

ED_EOSA_20 MODIS Data EOS-Aqua EI_SP_70, EI_SP_80 

ED_EOSA_30 AMSR-E Data EOS-Aqua 

ED_EOST_10 MODIS Data EOS-Terra 


EI_SP_130, EI_SP_135 

EI_SP_110, EI_SP_120, 

EI_SP_125 

ED_MTS_10 SEVIRI Data Meteosat EI_SP_140, EI_SP_145 

ED_DMSP_10 SSM/I Data DMSP EI_SP_180 

ED_DMSP_20 SSMIS Data DMSP EI_SP_180 

ED_NASA_10 Archived Data NASA EI_SP_220, EI_SP_250 

ED_ECMWF_10 Archived Data ECMWF EI_SP_240, EI_SP_270 

ED_WMOGTS_10 

SYNOP Archived 

Data 

WMO-GTS 

EI_SP_200, EI_SP_210





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Table 13 Snow Parameters Subsystem Interface Data 


sm SP-GC1 State Diagram 

[No data] 


Start acquisition [New 


Acquisition 

Pre-process data 

[Satellite Data 

available] 

SP-GC1 Preprocessing 

Generate product 

[Pre-processed 


Quality control 



[End QC] 

SP-GC1 Product 

generation 

Acquisition [SP-GC2 

intermediate products] 

Merging products [SP-GC2 

intermediate product] 


product available + Quality 

info] 

SP-GC1 Archiv ing 


intermediate and merged products 

available + Quality info] 

Dissemination 


[Dissemination finished] 

Final 

Figure 12 State Diagram of SP-GC1 Component





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sm SP-GC2 State Diagram 

[No data] 

Start acquisition [New 

Pre-process data [Satellite 

Ready to Receiv e data available] 

Acquisition 


SP-GC2 Preprocessing 

Generate product [Pre-processed 


Quality control 



[End QC] 


generation 

SP-GC2 Archiv ing 




validated product 

available] 

Dissemination 



finished] 

Final 

Figure 13 State Diagram of SP-GC2 Component





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Process name 

Acquisition 

SP-GC1 Pre-processing 

SP-GC2 Pre-processing 

SP-GC1 Product Generation 

SP-GC2 Product Generation 

SP-GC1 Archiving 

SP-GC2 Archiving 


Dissemination 

Description 

Process in charge of acquiring raw data 

from satellite 

Transformation of raw data into preprocessed 

data 

Elaboration of each input (pre-process data, 

auxiliary data, etc.) for generating the final 

products. SP-GC1 is responsible for the 

merging process 


Control of the products and auxiliary data 

quality and setting of the quality control flag 

Transmit data to the users and to the Offline 

Monitoring subsystem 

Table 14 Snow Parameters Subsystem Interface Processes





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Satellites 


Sources 

Raw 

data 

Auxiliary 

Data 

Auxiliary 

Data 

Auxuliary Data 

Satellite Archived 

Data 

Synoptic/ 

Observation 

Data 

Acquisition 

Q.C. 

Auxiliary 

Data 

OBS “a” 

labeled SP 

products 

Q.C. OBS “a” 

labeled SP 

products 

Q.C. 

Auxiliary 

Data 

WMO GTS 

Preprocessing 

Preprocesed 



Generation 

OBS 

“combined 

SP products 


OBS “b” 

labeled SP 

products 

Q.C.OBS 

“combined 

SP products 

Q.C.OBS 

“combined 

SP products 

OBS Snow Parameters 

products 

Archiving 

Dissemination 

OBS combined 

Snow 

Parameters 

products 


Subsystem 

End-Users 

Figure 14 Data Flow Diagram of SP-GC1 Component for combined and ”a” labelled intermediate Snow Parameters products





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Satellites 

Raw 

data 

Auxiliary 

Data 

External Auxiliary 

Data DB’s 

Auxiliary 

Data 

Auxuliary Data 

Satellite Archived 

Data 

Acquisition 

Synoptic/ 

Observation 

Data 

Q.C. 

Auxiliary 

Data 

OBS “b” 

labeled SP 

products 

Q.C. 

Auxiliary 

Data 

WMO GTS 

Preprocessing 

Preprocesed 



Generation 


OBS “b” 

labeled SP 

products 

Q.C. OBS “b” 

labeled SP 

products 

Archiving 

Dissemination 

OBS “b” 

labeled SP 

products 

OBS Snow Parameters 

products 

FMI subsystem 

Figure 15 Data Flow Diagram of SP-GC2 Component for ”b” labelled intermediate Snow Parameters products





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3.4 Hydro Validation Subsystem Data Flows 


This subsystem can be abstracted as a black-box receiving as input the H-SAF products 

and providing hydro validation reports as output. 

The data flow consists of the product transformation into an item adapted to be processed 

by the models. Once the models run on the product just pre-processed, the reports are 

produced and immediately sent to the Offline Monitoring Subsystem. 


The following data is managed by HV subsystem: 

Precipitation products 

Snow Parameters products 

Soil Moisture products 

Hydro Validation reports 


The following State Diagram gives evidence of the main states of the Hydro Validation 

Subsystem. Each time a product is available, as soon as it is produced by the generation 

chains, this product is acquired by the subsystem. The acquisition is the first action starting 

the tasks of the subsystem, followed by the pre-processing and the validation of the 

product acquired. The last but most important activity of the Hydro Validation Subsystem is 

the report generation. Each report is sent to the Offline Monitoring subsystem for H-SAF 

internal dissemination.





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stm HV State Diagram 

Products waiting 

Start download 

[New product 

available] 

Download 

Transitions flow 

representing each Impact 

Study Report generation 

[No new products] 

HV Impact Study Report Generation 

Initial 

Processing 

Start validation 

[Product pre-processed] 

Validation 

[Dissemination to 

OM terminated] 

Report Sending 

Send Report 

[Report 

generated] 

Report Generation 

Generate report 

[Validation achieved] 

Final 

[Impact Studies Reports 

generated] 

HV Report 

Dissemination 

HV Report merging 

and formatting 

Reports Centralization 

Figure 16 State Diagram of Hydro Validation Subsystem





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Process name 

Acquisition 

Pre-processing 

Validation 

Dissemination 

Description 

Process in charge of acquiring products form the generation 

chains, before the pre-processing 

Elaboration of each product finalized to the product fitting into 

parameters expected for the models to be run. 

The hydro validation models running. The result is a set of 

data useful to compose the report 

Process in charge of distributing hydro validation reports to 

Offline Monitoring Subsystem 

Table 15 Hydro Validation Subsystem Interface Processes 


Hydro Validation Subsystem receives products from the generation chains and preprocesses 

them. It generates reports and then disseminates them through the Offline 

Monitoring Subsystem.





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WMO GTS 

EUMETSAT 

H-SAF Products 

Impact Study 

models 

Ingestion 

Processing 

Hydro Validation 

Impact Study 

Report 

HV Report 

Generation 

Centralization 

Impact Study 

Reports 

HV Reports 

Dissemination 

HV Reports 


Subsystem 

Figure 17 Data Flow Diagram of Hydro Validation Subsystem 

Note: This diagram shows the data flow for a single Impact Study inside the Hydro 

Validation Process.





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3.5 Offline Monitoring Subsystem Data Flows 


This subsystem achieves the task of centralizing the main objects of the H-SAF system 

(the generation chains products) in order to be maintained and distributed in an offline 

mode. 

This aim lets the same subsystem monitoring the functionality of each H-SAF subsystem 

and component in a central mode, with the result of the production of performance reports 

for each products managed. 

An exhaustive information system is managed by Offline Monitoring Subsystem in order to 

maintain products as well as the performance reports. 

Its crucial position inside the system carries out also the functionality of dissemination to 

the external users through UMARF client, as well as an internal distribution of reports 

among the generation chains. 


Precipitation Products, Snow Parameters Products, Soil Moisture Products, Hydro 

Validation Reports, Performance Reports. 


Events starting each interface process are: 

Reception of new products; 

Reception of new reports. 

If a new performance report is available, it is acquired and archived by Offline Monitoring 

Subsystem. If a product is available in input, the acquisition component of OM subsystem 

starts the acquisition process followed by these two tasks: 

product archiving into the central archive 

product’s performance report generation and archiving





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sm Offline Monitoring State Diagram 

[No input data] 

Products/Reports 

waiting 

[Report archived] 

Report Archiv ing 

Acquire report [New 

report available] 

Archive report 

[Report acquired] 

Report Acquisition 

Aquire product [New 


[Product 

archived] 

Product Acquisition 

Archive report 

[Report generated] 

[Product acquired] 

Archive product 

Generate 

Performance Report 

Product Archiv ing 

Performance Report 

Generation 

Figure 18 State Diagram of Offline Monitoring Subsystem





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Process name 

Ingestion 

Archiving 

Performance Reports 

Generation 

Catalogue Updating 

Orders Management 

Archive Management 

Reports Dissemination 

Product Dissemination 

Description 

Process in charge of receiving products from each 

generation chains and receiving hydro validation reports 

from Hydro Validation Subsystem. This process achieves 

the first phase of the centralization activity. 

Archiving interface process consists of storing data received 

from the other subsystems (products and hydro validation 

reports) into a central archive. This process achieves the 

second phase of the centralization activity. 

This is the process in charge of generation performance 

reports for each product received from the generation 

chains. It starts as soon as the ingestion process ends its 

task. 

Offline Monitoring Subsystem frequently receives products 

and reports and with the same frequency it archives these 

data into a central archive. The Catalogue Updating process 

is in charge of maintain a directory of all products and 

reports available in the central archive, ready to be 

disseminated to the external users. 

All the tasks concerning the reception and management of 

orders from users through UMARF client is achieved by this 

process. Each order is examined before confirming or 

rejecting it to the user. The Orders Management process 

export products from central archive and send it 

It is in charge of accessing to the central archiving in order 

to provide products and reports respectively to the users 

whose request has been scheduled by order, and to the 

generation chains after generating products. 

It manages the interface between Offline Monitoring 

Subsystem and the generation chains, with the aim of 

providing to the chains the performance reports after each 

product made available. 

This process manages the interface between Offline 

Monitoring Subsystem and external users, through the





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UMARF client. Each order coming from users is passed to 

the Orders Management process. Catalogue is sent by this 

process, as well as the products required. 

Table 16 Offline Monitoring Interface Processes 


Two main data flows have to be traced to describe the interface processes and data of 

Offline Monitoring Subsystem: 

Data flow of the archiving task 

Data flow to the dissemination task





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Soil Moisture 

Subsystem 


Subsystem 

Precipitation 

Subsystem 

Hydro Validation 

Subsystem 

Soil 

Moisture 

Products 

Snow 

Parameters 

Products 

Precipitation 

Products 

Hydro 

Validation 

Reports 

Ingestion 

Performance 

Reports 

generation 

Archiving 


Products 

Hydro Validation Reports 

Catalogue 

Updating 

Catalogue 

Figure 19 Data Flow Diagram of Offline Monitoring Subsystem - Archiving flow





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Soil Moisture 

Subsystem 


Subsystem 

Precipitation 

Subsystem 

Reports 

Dissemination 


Hydro Validation Reports 

Archive 

management 

Products 

Products 

Catalogue 

Orders 

Management 

Orders 

Product 

Dissemination 

Catalogue, 

Products 

Order 

UMARF 

Figure 20 Data Flow Diagram of Offline Monitoring Subsystem - Dissemination flow





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4 Interface Specification 

4.1 Introduction 

This section provides a technical specification of each interface (external and internal), 

detailing its main elements, in terms of: 

Type: the interface type for the data exchanging. E.g.: File, Email, etc. 

Support Type: the transmission mean to vehicle data. E.g.: Radio, Electronic, etc... 

Protocols: the interface protocols. E.g.: FTP, TCP/IP etc. 

Source Component: component involved in the interface data flow as a source of 

the data/process flow. Location of the component is also provided, in terms of 

institute or organization physically hosting the component. 

Destination Component: component involved in the interface data flow as a 

destination of the data/process flow. Location of the component is also provided, in 

terms of institute or organization physically hosting the component. 

Transmission delay: the delay produced by the interface as the time spent by the 

data to travel from the source to the destination point of the interface. E.g.: seconds, 

minutes, RT (Real Time), NRT (Near-Real-Time) etc... 

Mean Frequency: mean frequency of the activation of the interface’s data flow. 

E.g.: 250 / month, asynchronous, etc... 

Size: size of the data passing through the interface. E.g.: Kbytes, Mbytes to 

GBytes, etc... 

Trigger Events: events causing the activation of the data flow and the interface 

processes related to this data. 

H-SAF System Engineering is compliant to the latest ECSS standards. 

ECSS standard founding principles have been adopted into H-SAF Engineering, such as 

the tailoring concept and the strict relationship between Software Engineering and System 

Engineering. 

These principles are particular meaningful in the H-SAF context, since H-SAF is a complex 

system into which the software layer is just one of many different layers building up the 

heterogeneous set-up.





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4.2 EI_PR_10 (Meteosat-SEVIRI Data) 

Further specification for this interface is provided by document [RD8]. 

4.2.1 Type 

MSG-SEVIRI level 1.5 DATA - LRIT 

4.2.2 Support Type 

Radio (L Band) 

4.2.3 Protocols 

Direct read-out 

4.2.4 Source Component 

Meteosat Second Generation 

4.2.5 Destination Component 

PR-AP at CNMCA 

4.2.6 Transmission delay 

RT 

After reception of raw data at CNMCA, the delay is about 15 minutes (not more) 

4.2.7 Mean Frequency 

Every 15 minutes. The visible channels are transmitted during diurnal phase. 

4.2.8 Size 

13.4 Mbytes for each channel. The HRV channel is not considered 

4.2.9 Trigger Events 

When available 

4.3 EI_PR_30 (NOAA) 

AMSU-A, AMSU-B (up to NOAA17) MHS (NOAA 18-19) Data 

Further specification for this interface is provided by documents [RD2] and [RD3].





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4.3.1 Type 

HRPT (High Resolution Picture Transmission) File 


Radio (L Band) 




NOAA 




RT 


Approximately every 3 hours 

4.3.8 Size 





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Radio 




MetOp 




RT 


See [RD4] and [RD5] 

4.4.8 Size 

120 Mbytes 



4.5 EI_PR_50 (DMSP) 

SSM/I, SSMIS Data 

4.5.1 Type 

BUFR File 


Electronic





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FTP 


UK Met Office 




NRT 


Asynchronous. The orbit period is 101 minutes. Each satellite overflies the poles 14 

times/day 

4.5.8 Size 

6 Mbytes/file for SSM/I 

10 Mbytes/file for SSMIS 



4.6 EI_PR_100 (Synoptic / Observation Data) 

4.6.1 Type 

At moment we are receiving the messages codified in ASCII format. In the future the 

messages on GTS will be codified in BUFR format. 


Electronic 


GTS





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WMO-GTS 


PR-GC1-PG1, PR-GC1-PG2, PR-GC1-PG3, PR-GC1-PG4 at CNMCA 


A few minutes delay respecting nominal hours 


The SYNOP message is transmitted every 3 hours. The METAR, usually, is transmitted 

every 1 hours 

4.6.8 Size 

The system receives 400-4000 messages every hour. The size of message is 1 KB, so the 

volume of data managed by system 0.4 MB- 4MB pour hour. 



4.7 EI_PR_110 (Auxiliary Data - TLE) 

TLE (Two-Line Elements) Data from NORAD 

4.7.1 Type 

ASCII 


Electronic 


HTTP 


NORAD web server at http://www.space-track.org/perl/login.pl





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N.A. 


Twice a day 

4.7.8 Size 

2 Kbytes 


Scheduled download 

4.8 EI_PR_120 (Satellite Data via EUMETCast) 

SEVIRI, EARS Data 

4.8.1 Type 

MSG-SEVIRI level 1.5 DATA -HRIT; 

BUFR File (EARS) 


DVB, Ku-Band transmission (EUMETCast) 


EUMETCast 


EUMETSAT 


PR-AP at CNMCA





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NRT 


Every 15 minutes (SEVIRI) 

Every 20 minutes (EARS) 

4.8.8 Size 

16.8 Mbytes for each channel. The HRV channel is not considered (SEVIRI) 

2.5 Mbytes (EARS) 



4.9 EI_PR_130 (NWP Data – Boundary Conditions) 

4.9.1 Type 

GRIB File 


Electronic 


FTP 


ECMWF 




Few minutes after data generation.





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Every 12 hours 

4.9.8 Size 

> 1 GBytes 


Scheduled download via SMS scheduler 

4.10 EI_PR_500 (Precipitation Products via EUMETCast) 

4.10.1 Type 

BUFR, GRIB File 


Electronic 


FTP 


PR-DIS at CNMCA 


EUMETSAT. 


NRT 


PR-OBS1 every hour 

PR-OBS2 every 30 minutes 

PR-OBS3 every 15 minutes 

PR-OBS4 every 15 minutes





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PR-OBS5 every 3 hours 

PR-ASS1 every 12 hours 

4.10.8 Size 

Product Maximum Size Mean Size 

PR-OBS1 250 Kbytes 150 Kbytes 




PR-ASS 980 Kbytes 980 Kbytes 

Table 17 Precipitation Products Sizes 


Scheduled upload via SMS scheduler 

4.11 EI_PR_510 (Precipitation Products via WMO-GTS) 

4.11.1 Type 

BUFR, GRIB File 


Electronic 


GTS 




WMO-GTS





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NRT 


See 4.10.7 

4.11.8 Size 

See 4.10.8 


See 4.10.9 

4.12 EI_PR_520 (Precipitation Products metadata via UMARF Client) 

4.12.1 Type 

Metadata File 


Electronic 


UMARF protocol 




UMARF Server 

Scientific Users (via UMARF client). 


RT





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See 4.10.7 

4.12.8 Size 

See 4.10.8 


See 4.10.9 

4.13 EI_SM_10 (Level 2 MetOp/ASCAT product) 

4.13.1 Type 

File 


Electronic 


EUMETCast 


EUMETSAT 


SM-GC1-RPG at ZAMG and SM-GC2-VPG at ECMWF 


NRT 


8-15 files/day 

4.13.8 Size 

1300-2280 KB/file (Mean: ~2000 KB/file)





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File detection 

4.14 EI_SM_15 (Level 1 MetOp/ASCAT product) 

4.14.1 Type 

File 


Electronic 


EUMETCast 


EUMETSAT 


SM-GC1-GPG at ECMWF 


NRT 


4 / day (at synoptic time 00,06,12,18 UTC) 

4.14.8 Size 

4 x 1.6 MB per synoptic time ( = 25.6 MB per day) 


Automatic trigger twice per day (operational ECMWF Integrated Forecast System)





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4.15 EI_SM_20 (ERS1/2 AMI-SCAT Archived Data) 

4.15.1 Type 

File 


Electronic 


FTP 


ERS1/2 Archive 


SM-GC1-VPG at ECMWFTU Wien 


Offline (historic data processing) 


4 / day (at synoptic times 00, 06, 12, 18 UTC) 

4.15.8 Size 

4 x 70 KB per synoptic time ( = 1.09 MB per day) 


Manual 

4.16 EI_SM_30 (Envisat/ASAR Archived Data) 

4.16.1 Type 

File.





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Electronic 


FTP 


Envisat/ASAR Archive 


After pre-processing at TU-WIEN, resulting parameter database sent to SM-GC1-RPP at 

ZAMG 


Offline 


1/year (static file, only in case of major updates) 

4.16.8 Size 

Current estimate: max. ~4.7 GB 


Data availability (only in case of major updates) 

4.17 EI_SM_50 (Auxiliary Data) 

4.17.1 Type 

File 


Electronic 


Archive Retrieval





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Currently only land cover information 


After pre-processing at TU-WIEN, resulting parameter database sent to SM-GC1-RPG at 

ZAMG 


Offline 


1/year (static file, only in case of major updates) 

4.17.8 Size 

Current estimate: max. ~4.7 GB 


Data availability (in case of major updates) 

4.18 EI_SM_90 (Synoptic Weather Data via WMO-GTS) 

4.18.1 Type 

File. 


Electronic 


GTS 


WMO-GTS 


SM-GC1-VPG at ECMWF





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NRT 


Hourly 

4.18.8 Size 





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4.19.8 Size 

Current estimate: 0.5-680 MB/file, mean: 290 MB/file 



4.20 EI_SM_510 (Soil Moisture Products via EUMETCast) 

4.20.1 Type 

File 


Electronic 


EUMETCast 


SM-DIS at ZAMG 


EUMETSAT 

Civil Protection Units and Hydrological Validation Institutes. 


NRT 


8-15 files/day





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4.20.8 Size 




4.21 EI_SM_520 (Soil Moisture Products via WMO-GTS) 

4.21.1 Type 

File 


Electronic 


GTS 




WMO-GTS 

Meteorological Services. 


RT 



4.21.8 Size 

Current estimate: 0.5-680 MB/file, mean: 290 MB/file





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4.22 EI_SP_10 (NOAA-AVHRR Archived Data via EUMETCast) 

4.22.1 Type 

HDF-EOS File 




EUMETCast 


NOAA satellite 


SP-GC1-AP at FMI 


NRT 


400 / month 

4.22.8 Size 

60 Mbytes / file 


Data file present at the NOAA archive





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4.23 EI_SP_15 (NOAA-AVHRR Archived Data) 

4.23.1 Type 

HDF-EOS File 


Electronic 


NOAA protocols 


NOAA Archive 


SP-GC2-AP at TSMS 


NRT 


450 / month 

4.23.8 Size 



Data file present at the NOAA archive 

4.24 EI_SP_20 (NOAA-AVHRR Data) 

4.24.1 Type 

VCS XPIF file





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Radio 




NOAA 




RT 


400/month, asynchronous 

4.24.8 Size 

22 Mbytes/pass 


File Detection 

4.25 EI_SP_30 (NOAA-AVHRR Data) 

4.25.1 Type 

File 


Radio 


Direct read-out





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HRPT 


NOAA 




RT 


Approximately 120/month, asynchronous 

4.25.8 Size 

Approximately 120 Mbytes/pass 



4.26 EI_SP_40 (MetOp-AVHRR Data via EUMETCast) 

4.26.1 Type 

EPS-native File 




EUMETCast 


EUMETSAT





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NRT 


400 / month, asynchronously 

4.26.8 Size 



File available in EUMETCast 

4.27 EI_SP_50 (MetOp-AVHRR Data) 

Further specification of this interface is provided by document [RD6]. 

4.27.1 Type 

NaN 


Radio 




MetOp 


SP-GC1-AP at FMI





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RT 


NaN (direct-broadcast malfunction) 

4.27.8 Size 

Not available 



4.28 EI_SP_60 (MetOp-AVHRR Data) 


4.28.1 Type 

File 


Radio 


A-HRPT 


MetOp 




RT





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Approximately 120/month, asynchronous 

4.28.8 Size 

Approximately 120 Mbytes/pass 



4.29 EI_SP_70 (EOS Aqua-MODIS Archived Data) 

4.29.1 Type 

HDF-EOS File 


Electronic 


FTP 


NASA Archive 




NRT 


30 / month (Depends on the development stage of algorithms/models) 

4.29.8 Size 

38 Mbytes / file





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File available in the NASA archive 

4.30 EI_SP_75 (EOS Aqua-MODIS Archived Data) 

4.30.1 Type 

HDF-EOS File 


Radio 


FTP 


NASA Archive 




NRT 


Approximately 120 / month, asynchronous 

4.30.8 Size 

Approximately 800 MBytes / pass 


File Detection





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4.31 EI_SP_80 (EOS Aqua-MODIS Data) 


4.31.1 Type 

HDF-EOS File 


Radio 




EOS-Aqua 




RT 


60/month and asynchronous 

4.31.8 Size 




4.32 EI_SP_85 (EOS Aqua-AMSR-E Data) 

Further specification of this interface is provided by document [RD7].





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4.32.1 Type 

File 


Radio 


FTP 


EOS-Aqua 




RT 


Not available (receiving conflict) 

4.32.8 Size 

Not available 



4.33 EI_SP_90 (EOS Aqua-AMSR-E Data) 


4.33.1 Type 

File





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Electronic 


FTP 


EOS-Aqua 




RT 


Approximately 120/month and asynchronous 

4.33.8 Size 

Approximately 5 Gbytes / month 



4.34 EI_SP_110 (EOS Terra-MODIS Archived Data) 

4.34.1 Type 

File 


Electronic 


FTP





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NASA Archive via ITU 




NRT 


120 / month, asynchronous 

4.34.8 Size 

2 GBytes 


Scheduled 

4.35 EI_SP_120 (EOS Terra-MODIS Archived Data) 

4.35.1 Type 

File 


Electronic 


FTP 




SP-GC2-AP at TSMS





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NRT 



4.35.8 Size 

2 GBytes 


Scheduled 

4.36 EI_SP_125 (EOS Terra-MODIS Satellite Data) 

4.36.1 Type 

File 


Electronic 




EOS Terra-MODIS 




NRT 


120 / month, asynchronous





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4.36.8 Size 

2 GBytes 


Scheduled 

4.37 EI_SP_130 (EOS Aqua-AMSR-E Archived Data) 

4.37.1 Type 

HDF-EOS File 


Electronic 


FTP 


NASA Archive 




NRT 


810 / month, asynchronously 

4.37.8 Size 



Data file available in the NASA data archive





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4.38 EI_SP_135 (EOS Aqua-AMSR-E Archived Data) 

4.38.1 Type 

HDF-EOS File 


Electronic 


FTP 






NRT 



4.38.8 Size 



Scheduled 

4.39 EI_SP_140 (Meteosat-SEVIRI Data via EUMETCast) 

4.39.1 Type 

Level 2 HDF5 File





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Electronic 


EUMETCast 


EUMETSAT 




NRT 


2880 / month 

4.39.8 Size 

10Mbytes / file (night) 

110 Mbytes / file (day) 



4.40 EI_SP_145 (Meteosat-SEVIRI Data via EUMETCast) 

4.40.1 Type 

Level 2 HDF5 File 


Electronic





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EUMETCast 


EUMETSAT 




NRT 


2880/month, synchronous 

4.40.8 Size 

285 Mbytes/cycle 



4.41 EI_SP_180 (DMSP Archived Data) 

SSM/I, SSMIS Data 

4.41.1 Type 

File 


Electronic 


FTP





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UK Met Office 




NRT 


120/month, asynchronous (SSM/I) 

60/month, asynchronous (SSMIS) 

4.41.8 Size 

5 Mbytes/pass (SSM/I) 

10 Mbytes/pass (SSMIS) 


Scheduled 

4.42 EI_SP_200 (SYNOP Archived Data via WMO-GTS) 

4.42.1 Type 

BUFR File 


Electronic 


GTS 


WMO-GTS





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RT 


Daily 

4.42.8 Size 

1 Mbyte 


At 3 a.m. (Local time in Helsinki) 

4.43 EI_SP_210 (SYNOP Archived Data via WMO-GTS) 

4.43.1 Type 

ASCII File 


Electronic 


GTS 


WMO-GTS 




NRT





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Hourly 

4.43.8 Size 

5 Mbytes /month 


Scheduled 

4.44 EI_SP_220 (NASA Archived Data) 

4.44.1 Type 

HDF-EOS File 


Electronic 


FTP 


NASA Archive 




On-demand 


Depends on the development stage of algorithms/models 

4.44.8 Size 

100 Mbytes





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Historical (non-real-time) data needed for model/algorithm development. 

4.45 EI_SP_230 (NOAA Archived Data) 

4.45.1 Type 

HDF-EOS File 


Electronic 


FTP 


NOAA Archive 




On-demand 



4.45.8 Size 

Approximately 100 Mbytes 


Historical (non-real-time) data needed for model/algorithm development





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4.46 EI_SP_240 (ECMWF Archived Data) 

4.46.1 Type 

File 


Electronic 


FTP 


ECMWF Archive 




On-demand 



4.46.8 Size 

2 Mbytes 


Historical data needed for model/algorithm development 

4.47 EI_SP_250 (NASA Archived Data) 

4.47.1 Type 

HDF-EOS File.





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Electronic 


FTP 


NASA Archive 




On-demand 


240 files/month 

4.47.8 Size 

2 GB per month 


Data needed for production generation 

4.48 EI_SP_260 (NOAA Archived Data) 

4.48.1 Type 

HDF-EOS File 


Electronic 


FTP





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NOAA Archive 




NRT 


100 files/month 

4.48.8 Size 

5 GB per month 


Data needed for production generation 

4.49 EI_SP_270 (ECMWF Archived Data) 

4.49.1 Type 

File 


Electronic 


TCP/IP 


ECMWF Archive 


SP-GC2-AP at TSMS





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On-demand 


User-dependent 

4.49.8 Size 

User-dependent 


User request 

4.50 EI_SP_280 (Auxiliary Data) 

4.50.1 Type 

File 


Electronic 


Archive Retrieval 


Auxiliary Data Sources 


SP-GC1-AP 


Offline 


Only in case of major updates





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4.50.8 Size 

N.A. 


Data availability (in case of major updates) 

4.51 EI_SP_290 (Auxiliary Data) 

4.51.1 Type 

File 


Electronic 


Archive Retrieval 


TSMS and SHW Archives 




NRT 


Daily 

4.51.8 Size 

2 Mbytes / file. 


Product generation and validation





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4.52 EI_SP_500 (SN-OBS-1, SN-OBS-2, SN-OBS-3, SN-OBS-4 via 

UMARF) 

4.52.1 Type 

HDF5 File 


Electronic 


UMARF protocol 


SP-DIS at FMI 


UMARF 

Scientific Users (via UMARF client). 


OFL 


When necessary 

4.52.8 Size 



When necessary





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4.53 EI_SP_520 (SN-OBS-1, SN-OBS-2, SN-OBS-3, SN-OBS-4 via 

EUMETCast) 

4.53.1 Type 

File 


Electronic 


EUMETCast 


SP-DIS at FMI 


EUMETSAT 

Civil Protection Units and Hydrological Validation Institutes. 


NRT 


Daily 

4.53.8 Size 



Products generated





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4.54 EI_SP_540 (SN-OBS-1, SN-OBS-2, SN-OBS-3, SN-OBS-4 via WMO- 

GTS) 

4.54.1 Type 

File 


Electronic 


GTS 


SP-DIS at TSMS 


WMO-GTS 

Meteorological Services. 


RT 


Daily 

4.54.8 Size 



Products generated





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4.55 EI_HV_10 (H-SAF Products via EUMETCast) 

4.55.1 Type 

File 




EUMETCast 


EUMETSAT 


HV-AP 


NRT 


Asynchronous activation of the interface 

4.55.8 Size 

Maximum H-SAF products’ size 


Asyncronous download of products agreed at Management level 

4.56 EI_HV_20 (H-SAF Products via WMO-GTS) 

4.56.1 Type 

File





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Electronic 


GTS 


WMO-GTS 


HV-AP 


RT 


Asynchronous activation of the interface 

4.56.8 Size 

Maximum H-SAF products’ size 


Asyncronous download of products agreed at Management level 

4.57 EI_OM_500 (H-SAF Products Catalogue via UMARF) 

4.57.1 Type 

File 


Electronic 


UMARF Client over scp/ssh





Date: 20/06/2008 

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OM-DIS at CNMCA. An UMARF-client application is here installed for the products upload. 


EUMETSAT-UMARF 


RT 


Timeliness of the overall H-SAF Production. 

4.57.8 Size 

Few MBytes per day 


Whenever a new product is archived. 

4.58 II_PR_10 (Pre-processed Satellite Data for PR-GC1) 

Pre-processed satellite data passing through this interface are: 

Meteosat-SEVIRI Data - Level 1c; 

NOAA Data - Level 1c; 

MetOp Data - Level 1c; 

DMSP Data - Level 1c; 

4.58.1 Type 

L1c file 


Electronic 


LAN protocols





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PR-GC1-PG1, PR-GC1-PG2, PR-GC1-PG3 at CNMCA 


RT 


Continuous acquisition 

4.58.8 Size 

Data size depends on Satellite/Instrument, as below: 

Data type 

AMSU-A 

AMSU-B 

File size 

450 Kbytes 

1500 Kbytes 

MHS 1500 

Table 18 NOAA-AMSU Data Size 



4.59 II_PR_20 (Pre-processed Satellite Data for PR-GC2) 

Pre-processed satellite data to be assimilated passing through this interface are: 

Meteosat-SEVIRI Data - Level 1c; 

NOAA Data - Level 1c; 

MetOp Data - Level 1c; 

DMSP Data - Level 1c;





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4.59.1 Type 

L1c file 


Electronic 


LAN protocols 




PR-GC2-PG at CNMCA 


RT 


See 4.10.7 

4.59.8 Size 

See 4.10.8 


See 4.10.9 

4.60 II_PR_30 (PR-OBS-1) 

4.60.1 Type 

BUFR File 


Electronic





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LAN protocols 


PR-GC1-PG1 at CNMCA 




RT 


Every hour 

4.60.8 Size 

2 Mbyte max size 



4.61 II_PR_40 (PR-OBS-2) 

4.61.1 Type 

BUFR File 


Electronic 


LAN protocols 


PR-GC1-PG2 at CNMCA





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RT 


Every 20 minutes 

4.61.8 Size 

>100 Kbytes





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Every 15 minutes 

4.62.8 Size 

>50 Kbytes





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See 4.10.9 

4.64 II_PR_180 (PR-OBS-1, PR-OBS-2, PR-OBS-3, PR-OBS-4, PR-OBS-5) 

4.64.1 Type 

BUFR and GRIB Files 


Electronic 


LAN protocols 






RT 


See 4.10.7 

4.64.8 Size 

See 4.10.8 


See 4.10.9





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4.65 II_PR_190 (PR-ASS-1 for QC) 

4.65.1 Type 

GRIB File 


Electronic 


LAN protocols 




PR-GC2-QC at CNMCA 


RT 


Twice a day 

4.65.8 Size 





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Electronic 


LAN protocols 






RT 


Twice a day 

4.66.8 Size 





Date: 20/06/2008 

Page: 127/149 






RT 


Continuous acquisition 

4.67.8 Size 





Date: 20/06/2008 

Page: 128/149 


RT 


See 4.10.7 

4.68.8 Size 

See 4.10.8 


See 4.10.9 

4.69 II_SM_10 (SM-ASS-1) 

4.69.1 Type 

File 


Electronic 


FTP 


SM-GC2-VPG at ECMWF 




NRT 


8-15 files/day





Date: 20/06/2008 

Page: 129/149 

4.69.8 Size 



Products availability 

4.70 II_SM_30 (SM-OBS-1 backup for Quality Control) 

4.70.1 Type 

File 


Electronic 


EUMETCast 


SM-GC1-GPG at ZAMG 


SM-GC1-QC at ZAMG 


NRT 



4.70.8 Size 

1300-2280 KB/file (Mean: ~2000 KB/file) 


File detection





Date: 20/06/2008 

Page: 130/149 

4.71 II_SM_31 (SM-OBS-2) 

4.71.1 Type 

File 


Electronic 


FTP 


SM-GC1-RPG at ZAMG 


SM-GC1-QC at ZAMG 


NRT 



4.71.8 Size 




4.72 II_SM_32 (SM-OBS-2) 

4.72.1 Type 

File





Date: 20/06/2008 

Page: 131/149 


Electronic 


FTP 


SM-GC1-RPG at ZAMG 




NRT 



4.72.8 Size 




4.73 II_SM_35 (SM-OBS-1 backup for dissemination) 

4.73.1 Type 

File 


Electronic 


FTP





Date: 20/06/2008 

Page: 132/149 


SM-GC1-GPG at ZAMG 




NRT 



4.73.8 Size 

1300-2280 KB/file (Mean: ~2000 KB/file) 


File availability 

4.74 II_SM_40 (All Soil Moisture Products to Offline Monitoring) 

4.74.1 Type 

File 


Electronic 


FTP 




OM-CEN at CNMCA





Date: 20/06/2008 

Page: 133/149 


< 1 min 


T8-15 files/day + products from ECMWF 

4.74.8 Size 

Current estimate: 0.5-680 MB/file, mean: 290 MB/file + ECMWF files 


Product availability 

4.75 II_SM_60 (SM-ASS-1 for Quality Control) 

4.75.1 Type 

File 


Electronic 


FTP 


SM-GC2-VPG at ECMWF 


SM-GC2-QC at ECMWF 


NRT 


See 4.74.7





Date: 20/06/2008 

Page: 134/149 

4.75.8 Size 

See 4.74.8 


See 4.74.9 

4.76 II_SP_10 (Pre-processed Satellite Data for SP-GC1) 


AVHRR Data – Level 1B 

MODIS Data – Level 1B 

AMSR-E Data – Level 2A 

SEVIRI Data – Level 2 

SSM/I Data – Level 1B 

SSMIS Data – Level 1B 

4.76.1 Type 

File 


Electronic 


Snow Cluster Internal / FTP 




SP-GC1-PG at FMI, TKK/LST, SYKE 


On-demand





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Depends on the development status of algorithms/models 

For MODIS data the mean frequency is once a day. 

4.76.8 Size 

Depends on the satellite data 


Data needed for model/algorithm development 

4.77 II_SP_20 (Pre-processed Satellite Data for SP-GC2) 


AVHRR Data – Level 1B 

MODIS Data – Level 1B 

AMSR-E Data – Level 2A 

SEVIRI Data – Level 2 

SSM/I Data – Level 1B 

SSMIS Data – Level 1B 

4.77.1 Type 

File 


Electronic 


Snow Cluster Internal / FTP 




SP-GC2-PG at TSMS





Date: 20/06/2008 

Page: 136/149 


On-demand 



4.77.8 Size 

Depends on the satellite data 


Data needed for model/algorithm development 

4.78 II_SP_70 (Auxiliary Data) 

4.78.1 Type 

File 


Electronic 


FTP 




SP-GC1-QC at FMI 


Archived Synoptic Weather data: On-demand. 

Other auxiliary data (see 2.3.4): On-demand.





Date: 20/06/2008 

Page: 137/149 


Archived Synoptic Weather data: Depends on the development status of 

algorithms/models. 

Other auxiliary data (see 2.3.4) N/A because it is mainly static. 

4.78.8 Size 

Archived Synoptic Weather data: 40 Mbytes / file (1 month of observations) 

Other auxiliary data (see 2.3.4): approximately 10 Mbytes. 


Archived Synoptic Weather data: Data needed for model/algorithm development. 

Other auxiliary data (see 2.3.4): Data needed for cal/val. 

4.79 II_SP_80 (Auxiliary Data) 

E.g.: Local Weather Data 

4.79.1 Type 

File 


Electronic 


FTP 




SP-GC2-QC at TSMS 


On-demand





Date: 20/06/2008 

Page: 138/149 



4.79.8 Size 

1,2 Mbytes/daily for synoptic 

2 Mbytes/daily for AWOS 


Weather data needed for model/algorithm calibration, validation and development 

4.80 II_SP_120 (SN-OBS-1, SN-OBS-2, SN-OBS-3, SN-OBS-4) 

4.80.1 Type 

File 


Electronic 


FTP 


SP-DIS at FMI 


OM-CEN at CNMCA 


NRT 


Once a day





Date: 20/06/2008 

Page: 139/149 

4.80.8 Size 



Products generated or daily products updated 

4.81 II_SP_300 (SN-OBS-1b, SN-OBS-3b, SN-OBS-4b for merging) 

4.81.1 Type 

File 


Electronic 


FTP 


SP-GC2-PG at TSMS 


SP-GC1-PG at FMI 


NRT 


Daily 

4.81.8 Size 

70 Mbytes / image 


New “b” labelled products generated





Date: 20/06/2008 

Page: 140/149 

4.82 II_HV_10 (Hydro Validation Impact Study Reports) 

4.82.1 Type 

File 


Electronic 


FTP 


HV-AP. Each relevant Subcomponent (HV-AP-IS1, HV-AP-IS2, HV-AP-IS3, HV-AP-IS4, 

HV-AP-IS5, HV-AP-IS6, HV-AP7 and HV-AP8) addresses its own part of this Component’s 

interface to the Destination Component. However at Component level II_HV_10 can be 

seen as a whole. 


HV-VPR at IMWM 


NRT 


At least seven times (one different report for each Impact Study) every 6 months (expected 

period of HV report delivery). 

4.82.8 Size 

< 5 MB 


Whenever a report is available.





Date: 20/06/2008 

Page: 141/149 

4.83 II_HV_20 (HV Report) 

4.83.1 Type 

File 


Electronic 


FTP 


HV-VPR at IMWM 




NRT 


Every 6 months 

4.83.8 Size 

< 10 MB 


Periodic schedule of HV delivery 

4.84 II_OM_10 (H-SAF Products and reports for archiving) 

4.84.1 Type 

File





Date: 20/06/2008 

Page: 142/149 


Electronic 


LAN protocols 




OM-ARC at CNMCA 


RT 


N.A. 

4.84.8 Size 

Kbytes to Mbytes 


Products/reports available from H-SAF generation chains 

4.85 II_OM_20 (H-SAF Products for reporting) 

4.85.1 Type 

File 


Electronic 


LAN protocols





Date: 20/06/2008 

Page: 143/149 




OM-REP at CNMCA 


RT 


N.A. 

4.85.8 Size 

Mbytes 


Products just received from H-SAF generation chains 

4.86 II_OM_30 (H-SAF Performance Reports for archiving) 

4.86.1 Type 

File 


Electronic 


LAN protocols 


OM-REP at CNMCA 


OM-ARC at CNMCA





Date: 20/06/2008 

Page: 144/149 


RT 


N.A. 

4.86.8 Size 

Kbytes 


Performance reports generated by OM-REP component 

4.87 II_OM_40 (H-SAF Products and Reports for dissemination) 

4.87.1 Type 

File 


Electronic 


LAN protocols 


OM-ARC at CNMCA 


OM-DIS at CNMCA 


RT 


N.A.





Date: 20/06/2008 

Page: 145/149 

4.87.8 Size 

Kbytes 


Products/reports required by users 

4.88 II_OM_50 (H-SAF Performance Reports to Precipitation 

Subsystem) 

4.88.1 Type 

File 


Electronic 


LAN protocols 






RT 


N.A. 

4.88.8 Size 

Mbytes





Date: 20/06/2008 

Page: 146/149 


Performance reports related to Precipitation products just produced 

4.89 II_OM_60 (H-SAF Performance Reports to Soil Moisture 

Subsystem) 

4.89.1 Type 

File 


Electronic 


FTP 




SM-GC 1-PG at ZAMG 


NRT 


N.A. 

4.89.8 Size 

Kbytes 


Performance reports related to Soil Moisture products just produced





Date: 20/06/2008 

Page: 147/149 

4.90 II_OM_70 (H-SAF Performance Reports to SP-GC1) 

4.90.1 Type 

File 


Electronic 


FTP 






NRT 


N.A. 

4.90.8 Size 

Kbytes 


Performance reports related to SN_OBS_1a, SN_OBS_2a, SN_OBS_3a products just 

produced 

4.91 II_OM_80 (H-SAF Performance Reports to SP-GC2) 

4.91.1 Type 

File





Date: 20/06/2008 

Page: 148/149 


Electronic 


FTP 






NRT 


N.A. 

4.91.8 Size 

Kbytes 


Performance reports related to SN_OBS_1b, SN_OBS_2b, SN_OBS_3b products just 

produced 

5 TBDs/TBCs list 

No TBDs/TBCs are pending.





Date: 20/06/2008 

Page: 149/149 

- END OF THE DOCUMENT -

Interface Control Document (ICD) - H-SAF

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