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 at the MMR as soon as the L2P data become available to the user community. 65 WP-ID2.5.1 Format L2P MMR_FR metadata record 65 WP2-238 A MMR_FR metadata record should be prepared for each L2P data file according to the specification provided in Appendix CTR.0530 A6.2. 65 WP-ID2.5.2 Register L2P MMR_FR metadata record with MMR system 65 WP2-239 MMR_FR metadata records should be delivered to the MMR system as soon as possible after the L2P data set has been CTR.0580 evaluated following the procedure described in Appendix A6.4. 65 WP2-240 RDAC should aim to register MMR_FR records within 60 minutes of L2P data production in order that users are informed CTR.0580 in a timely manner. 65 WP2-241 It is recognised that, if the MMR_FR record is submitted by e-mail, delays in registration are beyond the control of the CTR.0110 RDAC. At the 4 th GHRSST-PP Science Team workshop, it was proposed to enable MMR data records to be delivered to the MMR via ftp push from the RDAC to circumvent this problem. 67 WP-ID3 The GHRSST-PP Matchup Data base (MDB) and derivation of Sensor Specific Error Statistics (SSES) Description: 67 WP3-001 This WP describes the GHRSST-PP match up database system (MDB) and the MDB data records that should be NASR produced at each RDAC. 67 WP3-002 The GDS requires that error estimates are assigned to every satellite SST measurement during the derivation of L2P data NASR products. As an in situ observation is not available for every SST measurement, Sensor Specific Error Statistics (SSES) are derived by a statistical analysis of MDB data records for a given sensor type and time period. SSES consist of a statistical mean bias and standard deviation (sd.) error estimate that is correlated to the mean L2P Proximity_confidence value for a given sensor. These values are then assigned to all L2P measurements that have the same Proximity_confidence value. © 2004 SOC Page 158 of 193
Medspiration MED-SOC-RS-001_1 System Requirements Document Issue F Page Table, fig. Reference ID Text from reference documents SR entry 67 WP3-003 In addition, The MDB system also provides a resource that can be used to validate GHRSST-PP data products. NASR 67 WP3-004 In the case of microwave SST, the derivation of SSES also requires that error components are assigned to each pixel NASR based on static look-up-tables of mean error due to sidelobe contamination, proximity to rain and wind speed. These tables will be provided by Remote Sensing Systems (RSS) for the TMI and AMSR-E (and in the future, Windsat) microwave instruments. 67 WP3-005 The main source of in situ observations used in this system will be those available from the GTS supplied through NASR international in situ data centres (e.g., MED, CORIOLIS, FNMOC) at which QC procedures are used to filter out poor quality data. 67 WP3-006 These data centres only provide in situ observations in a delayed mode (typically 24-72 hours, although delays may be MDB.0010 longer than this) and therefore RDAC and GDAC can only provide MDB records in a delayed mode. 67 WP3-007 RDAC are expected to arrange access to regional in situ data sources that are not available via the GTS system but can MDB.0120 be included in the MDB system. 67 WP3-008 The GHRSST-PP reanalysis project will be able to make use of other in situ observations that are unavailable in a NRT NASR mode. inputs 68 WP3-009 • L2P data files MDB.0040 68 WP3-010 • In situ ocean-atmosphere measurements from buoys, drifters and ships MDB.0020 68 WP3-011 • SSES configuration file NASR 68 WP3-012 • Static Look-up-Table (LUT) of microwave SST sidelobe contamination error NASR 68 WP3-013 • Static LUT of microwave SST rain contamination errors NASR 68 WP3-014 • Static LUT of microwave SST wind speed errors NASR outputs © 2004 SOC Page 159 of 193
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Medspiration â System Requirements Document - Data User Element