HR: 0830h
AN: A41E-0731    [PDF]
TI: Verification Of Rainfall Estimates Over Africa Using RFE, NASA MPA-RT, And CMORPH
AU: * Laws, K B
EM: kevin.laws@noaa.gov
AF: RS Information Systems Inc. - Climate Prediction Center, NCEP/NWS/NOAA, 5200 Auth Road, Camp Springs, MD 20746 United States
AU: Janowiak, J E
AF: Climate Prediction Center, NCEP/NWS/NOAA, 5200 Auth Road, Camp Springs, MD 20746 United States
AU: Huffman, G J
AF: Science Systems and Applications, Inc. and Laboratory for Atmospheres, NASA/GFSC, Goddard Space Flight Center Code 912, Greenbelt, MD 20771 United States
AB: Daily rainfall estimates over Africa are derived using the CPC Rainfall Estimation version 2.0 (RFE) algorithm. The RFE technique is used operationally by FEWS-Net and the Africa Desk at the NOAA/Climate Prediction Center to provide weekly weather hazard assessments to the U.S. State Department's Agency for International Development. The RFE algorithm provides daily $0.10\deg$ x $0.10\deg$ estimates by combining passive microwave and infrared-derived satellite rainfall estimates with daily gridded surface rainfall measurements. This paper and associated presentation will describe the point-to-grid box verification technique and present a preliminary validation of the RFE algorithm by comparing the estimates to rain gauge data from the Global Telecommunication System and other independent surface weather stations in Africa. Two other near-real-time precipitation estimates that have comparable timeliness and time/space grid intervals, the NASA Goddard TRMM Multi-satellite Precipitation Analysis - Real Time (MPA-RT) and the CPC MORPHing technique (CMORPH), will also be compared to similar stations to help gauge the performance of the RFE approach.
DE: 1800 HYDROLOGY
DE: 1812 Drought
DE: 1821 Floods
DE: 1854 Precipitation (3354)
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting