Medspiration â System Requirements Document - Data User Element

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Medspiration MED-SOC-RS-001_1 System Requirements Document Issue F Page Table, fig. Reference ID Text from reference documents SR entry and data. The GDS is split into work package (WP) sections to aid development and understanding of the system. The major work package components of the processing specification are shown in light blue together with their associated input and output data parameters that are shown in red and green respectively. The flow of data and information between each work package is indicated by the direction of connecting arrows. 32 GDS-046 The GDS data processing flow is designed to: see below 32 GDS-047 (a) Ingest and QC input SST data sets. L2P.0010 L2P.0020 32 GDS-048 (b) Assign pixel confidence data, auxiliary data (wind speed, Surface Solar Irradiance (SSI) and, Aerosol Optical Depth (AOD)) to each SST measurement. 32 GDS-049 (c) Assign error estimates (called Sensor Specific Error Statistics, SSES) to each SST measurement and format as a GHRSST-PP L2P output data file. L2P data sets should be available to the RDAC user community and GDAC processor L2P.0030 L2P.0040 L2P.0050 PER.SYS.0010 ideally within 6 hours of data reception at the satellite sensor. 32 GDS-050 (d) Collocate L2P data records with in situ measurements and enter these data into the GHRSST-PP Match-up Database (MDB). 32 GDS-051 (e) Extract High Resolution Diagnostic Data Set (HR-DDS) data granules from L2P data and submit these data to the GHRSST-PP HR-DDS system. SYS.0060 SYS.2060 SYS.0070 SYS.2080 DDS.0030 INT.DDS.0010 32 GDS-052 (f) Consolidate L2P SST data sets every 24 hours and analyse all data within an Analysis Product Processing Window SYS.0080 (APPW) to provide a ‘best estimate’ of the SSTfnd. Format analysed SST data sets as GHRSST-PP L4 data files and archive. L4 data products should be available to the user community no later than 12 hours following the end of an APPW. The analysis procedures, than must be developed, should aim to capitalise on the synergy benefits of complementary © 2004 SOC Page 120 of 193
Medspiration MED-SOC-RS-001_1 System Requirements Document Issue F Page Table, fig. Reference ID Text from reference documents SR entry infrared and microwave SST measurements with particular emphasis on data combinations that lead to better accuracy, minimise the impacts of cloud/rain contamination and atmospheric aerosol loading, optimise spatial and temporal sampling resolution and address diurnal variability amongst others. 33 GDS-053 (g) Extract High Resolution Diagnostic Data Set (HR-DDS) data granules from L4 data and submit these data to the GHRSST-PP HR-DDS system. SYS.0070 SYS.2080 DDS.0040 INT.DDS.0020 33 GDS-054 (h) For each data processing operation, create unique metadata records and submit these to the GHRSST-PP Master Metadata Repository (MMR). SYS.0055 CTR.0530 33 GDS-055 (i) Archive L2P and L4 data in a GDAC archive for use in the GHRSST-PP Reanalysis Project (RAN). SYS.0090 ARC.0010 33 GDS-056 Referring to Figure 3.1.1, RDAC first ingest, in real time, regional coverage satellite and in situ SST and auxiliary data streams from a variety of different data providers (WP-ID1 in Figure 3.1.1). SYS.2010 L2P.0010 33 GDS-057 Each input satellite SST data stream is quality controlled to check for gross errors, consistency and timelines. SYS.2010 L2P.0020 33 GDS-058 In the case of MW SST data sets, the use of level-2 (L2) as a descriptor of the data processing level is incorrect as these NASR data are typically L3 gridded fields. Thus, in the context of L2P data descriptions, the input data are actually L2/L3 but in order to keep the terminology simple for L2P data files throughout the GDS the term L2P will be used for both L2 IR and L3 MW SST data sets. 33 GDS-059 Data that are unacceptable for further use in the GDS are rejected at this point. ARC.0010 33 GDS-060 Each SST data file is then reformatted to a common GDS pre-processed data format (WP-ID2 in Figure 3.1.1) referred to L2P.0060 as L2P and described in Appendix A1, that is designed to allow easy sharing of data across the GHRSST-PP RDAC, © 2004 SOC Page 121 of 193
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Medspiration â System Requirements Document - Data User Element

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Medspiration â System Requirements Document - Data User Element