System Requirement Document (SRD) - H-SAF
System Requirement Document (SRD) - H-SAF
System Requirement Document (SRD) - H-SAF
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H -<strong>SAF</strong><strong>System</strong> <strong>Requirement</strong> <strong>Document</strong>Doc. No: <strong>SAF</strong>/H<strong>SAF</strong>/<strong>SRD</strong>/2.1Issue: Version 2.1Date: 20/06/2008Page: 55/102DescriptionCommentA reference database for cal/val, which shall archive elements describedin Table 8, shall be set upVerification DElement for SM consistency controlIn-situ data (e.g. Global Soil Moisture Data Bank, time domain reflectometry)Related space-based soil moisture missions (e.g. SMOS)Global water datasets (e.g. Global Lakes and Wetlands Database GLWD)Global snow datasets (e.g. Daily Northern Hemi-sphere Snow and Ice Analysisfrom United States National Snow and Ice Data Center NSIDC, Snow mapsbeing produced by H-<strong>SAF</strong> consortium)Global topography datasets (e.g. United States Geological Survey GlobalTopographic Data GTOPO30)Global freeze/thaw datasets (e.g. NCEP/NCAR Global Tropospheric Analyses,ECMWF’s 40-year Re-Analysis ERA-40)Table 8 Elements for soil moisture consistency control3.1.4.3 Snow Parameter subsystemSR-33040-FUN-PRG Level Component SPDescriptionCommentThe system shall produce at FMI the “snow detection (snow mask) byVIS/IR radiometry” (SN-OBS-1a) observation product in flat/forested areaVerification TSR-33050-FUN-PRG Level Component SPDescriptionCommentThe system shall produce at FMI the “snow status (dry/wet) by MWradiometry” (SN-OBS-2) observation product in flat/forested areaVerification TSR-33051-FUN-PRG Level Component SP
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