PPT Slide
NESDIS PR1 Ferraro et al. (1996 BAMS)
Jul 1987 to present, 1.0 and 2.5 deg grids, monthly
Precipitation algorithm is scattering-based using 85 GHz (Grody, 1991 JGR)
supplemented by emission algorithm (Weng et al., 1994, JGR) over ocean.
LWP and mean cloud fraction are also retrieved
GPCP psg Huffman et al., (1995 J Clim) Huffman and Coauthors, 1996 BAMS
Jul 1987 to present, 2.5 deg, monthly
Oceanic precipitation is a blend of Wilheit-Chang (1991 JTECH) and
AGPI (Adler et al., 1994 Rem Sens Rev) adjusted by rain gauge.
Xie-Arkin (CMAP) Xie and Arkin (1996 J Clim; 1997 BAMS)
1979 to 1995, 2.5 degree, monthly, global
Max Likelihood Estimation and subsequent bias adjustment using rain gauge
data are used to combine satellite, rain gauge, and reanalysis (optional) estimates
GPI, OPI, Wilheit-Chang, NESDIS, MSU1 (modified) are satellite algorithms
Key Aspects of Relevant Precipitation Algorithms