92nd American Meteorological Society Annual Meeting (January 22-26, 2012)

Tuesday, 24 January 2012: 1:30 PM
Assessing Version 7 TRMM Satellite Estimates Using TRMM Ground Validation Data
Room 256 (New Orleans Convention Center )
David B. Wolff Sr., NASA, Greenbelt, MD; and K. R. Morris

As of July 1, 2011, NASA's Precipitation Processing System (PPS) began routine processing of Tropical Rainfall Measuring Mission (TRMM) using Version 7 algorithms. All past TRMM data (Nov. 1997-present) will also be reprocessed using these improved algorithms. This study will select several months of the Version 7 data and will use TRMM Ground Validation (GV) estimates at Kwajalein, Republic of the Marshall Islands, and Melbourne, Florida to assess the quality of and provide error estimates for these new products for the Precipitation Radar (PR), TRMM Microwave Imager (TMI), and Combined (COM) data products. To perform these comparisons we will use the Global Precipitation Measurement (GPM) Validation Network (VN) software to match the satellite and GV data in time and space. The comparisons will also be compared over varying terrain types (Land, Coast and Ocean). These matched data will then be used to assess the quality of the TRMM V7 precipitation estimates, and will show the relative changes between the TRMM V6 and V7 data sets.

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