System Requirement Document (SRD) - H-SAF

H -SAFSystem Requirement DocumentDoc. No: SAF/HSAF/SRD/2.1Issue: Version 2.1Date: 20/06/2008Page: 50/1023.1.4.1 Precipitation subsystemSR-32010-FUN-PRG Level Component PRDescriptionCommentThe system shall produce the “Precipitation rate at ground by MW conicalscanners (with indication of phase)” product (PR-OBS-1)Verification TSR-32011-FUN-PRG Level Component PRDescriptionCommentThe system shall produce the “Precipitation rate at ground by MW crosstrackscanners (with indication of phase)” product (PR-OBS-2)Verification TSR-32020-FUN-PRG Level Component PRDescriptionCommentResolution of PR-OBS-1 product shall be 10 km (with MIS) or 15 km(with additional GPM)Verification TSR-32021-FUN-PRG Level Component PRDescriptionCommentResolution of PR-OBS-2 product shall be 10 km (with MIS) or 15 km (withother GPM)Verification TSR-32030-FUN-PRG Level Component PRDescriptionCommentAccuracy of PR-OBS-1 product shall be 10-20% (for a rate > 10 mm/h),20-40% (for a rate from 1 to 10 mm/h), 40-80% (for a rate < 1 mm/h)Verification TSR-32031-FUN-PRG Level Component PRDescriptionAccuracy of PR-OBS-2 product shall be 10-20% (for a rate > 10 mm/h),20-40% (for a rate from 1 to 10 mm/h), 40-80% (for a rate < 1 mm/h)