1. AMSR Team Meeting September 16, 2015 AMSR2 Rainfall Algorithm Update Christian Kummerow Colorado State University

2. GPROF is Bayesian search over an a-priori database of profiles GPROF 2004: CRM based profiles w. computed TB over ocean. Not Bayesian over land. Uses screening + Tb 85 depression for rainfall estimate. GPROF 2010: CRM based profiles are replaced by observed rain profiles from TRMM that are consistent with radar and radiometer. Land is same as before but retrievals over snow and ice covered surfaces are set to missing. GPROF 2014: Observed profiles come from GPM. V1 over ocean same as GPROF 2010 while ground radars over US cover all land. V2 is near completion w. profiles that are consistent with dual frequency radar and GMI radiometer over all surfaces. 15 different surface types are identified. Bayesian search is NOT over all profiles. Search is limited to same surface class, TPW and SST (ocean) T2m (land ). GPROF Algorithm

4. GPROF 2014 Algorithm Structure PreProcessor (sensor specific) Standard input file Spacecraft position Pixel Location, Tbs Pixel Time, EIA Chan Freqs & Errors GPM Precipitation Algorithm L1C Sensor Data Surface & Emissivity Classes ECMWF / GANAL Model Fields Autosnow Snow Cover Reynolds Sea-Ice Ancillary Info / Datasets Sensor Profile Database S0 output Complete HDF5 Output file Post-processor (Binary to HDF5) S1 output GPM_MERGE S0, S1 A-Priori Matched Profiles - TMI/ PR - AMSR-E / Cloudsat/ MHS - TMI/SSMIS/AMSRE & NMQ JMA forecast - NRT GANAL - Standard ECMWF - Climatology Model Preparation Denotes Processes running at the PPS

5. GPROF 2014 AMSR Structure PreProcessor (sensor specific) Standard input file Spacecraft position Pixel Location, Tbs Pixel Time, EIA Chan Freqs & Errors GPM Precipitation Algorithm L1C Sensor Data Surface & Emissivity Classes GFS Model Fields AMSR Snow Cover AMSR TPW, SST & Sea-Ice Ancillary Info / Datasets Sensor Profile Database Complete HDF5 Output file Post-processor (Binary to HDF5) A-Priori Profiles - AMSR-E / AMSR2 GFS forecast Model Preparation Denotes Processes running at the PPS

6. GPROF 2010 AMSR over cold sfc

7. AvePrecip = 1.81 mm/day GMI w. pre-launch Database (V1-4) Feb, Mar, April 2015 GMI w. GPM radar based profile Database Feb, Mar, April 2015 GPROF 2014 GMI over cold sfc

8. GPROF - GMI V01D (PPS)

9. GMI GPROF2014 Retrieval GPM Database Surface Precip GMI Kamchatk a November 7 th, 2014 64 32 16 8 4 2 1 0.5 Surface Precip GMI May 16 th, 2014

10. Surface Precip GMI + Combined MS Kamchatk a November 7 th, 2014 64 32 16 8 4 2 1 0.5 Surface Precip GMI + Combined NS May 16 th, 2014 GMI GPROF2014 Retrieval GPM Database

11. GPROF2014 Retrievals

14. GPROF - GMI

15. June 26

19. June 27