MIRS Update on Performance Metrics for NOAA-18 and SSMIS Retrievals - October 2008
This document presents the performance metrics of the Microwave Integrated Retrieval System (MIRS) for NOAA-18 and SSMIS. It includes mean bias and standard deviation analyses for both temperature and humidity retrievals. The update distinguishes between previous and new first guess (FG) methodologies, highlighting the use of climate-based cloud liquid water (CLW) for improved retrieval accuracy. Key comparisons are made between retrievals with and without CLW FG, along with insights on performance enhancements since prior evaluations.
MIRS Update on Performance Metrics for NOAA-18 and SSMIS Retrievals - October 2008
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Presentation Transcript
MIRS Status Updates to First-Guess and CLW Retrievals K. Garrett and S.-A. Boukabara MiRS Meeting October 3, 2008
MIRS NOAA-18 T Perfs Mean Bias Standard Dev. • Previous FG • MIRS (FG used as FG only, CLW FG from climate)
MIRS NOAA-18 T Perfs Mean Bias Standard Dev. • New FG • MIRS (FG used as FG only, with CLW FG)
MIRS NOAA-18 Q Perfs Mean Bias % Standard Dev. % • Previous FG • MIRS (FG used as FG only, CLW FG from climate)
MIRS NOAA-18 Q Perfs Mean Bias % Standard Dev. % • New FG • MIRS (FG used as FG only, with CLW FG)
MIRS SSMIS T Perfs Mean Bias Standard Dev. • Previous FG • MIRS (FG used as FG only, CLW FG from climate)
MIRS SSMIS T Perfs Mean Bias Standard Dev. • New FG • MIRS (FG used as FG only, with CLW FG)
MIRS SSMIS Q Perfs Mean Bias % Standard Dev. % • Previous FG • MIRS (FG used as FG only, CLW FG from climate)
MIRS SSMIS Q Perfs Mean Bias % Standard Dev. % • New FG • MIRS (FG used as FG only, with CLW FG)
MIRS N18 CLW ECMWF CLW MIRS LWP MIRS: No CLW FG
MIRS N18 CLW ECMWF CLW MIRS LWP MIRS: with CLW FG
MIRS SSMIS CLW ECMWF CLW MIRS LWP MIRS: No CLW FG
MIRS SSMIS CLW ECMWF CLW MIRS LWP MIRS: with CLW FG Chs. 8,17,18 OFF
