COMBINATION DATASETS WITH GAUGE DATA

Table 1. Summary of publicly available, quasi-operational, quasi-global precipitation estimates that are produced by combining input data from several sensor types, including satellite sensors and precipitation gauges. Where appropriate, the algorithms applied to the individual input data sets are mentioned. Solid shading indicates products that are not yet available. [Last updated 17 July 2013, G.J. Huffman]



Algorithm
Input data
Space/time grid
Areal coverage/start date
Update frequency
Latency
Producer (Developer) URL
CAMS/OPI CMAP-OPI, gauge 2.5°/ monthly Global/1979 Monthly 5 days NOAA/ NWS CPC (Xie)[1]
CMAP OPI, SSM/I, SSMIS, GPI, MSU, gauge, model 2.5°/ monthly Global/1979 - Oct. 2010 Seasonal 3 months NOAA/ NWS CPC (Xie)[2]
OPI, SSM/I, GPI, MSU, gauge, model 2.5°/ pentad Global/1979 - Sept. 2009 Seasonal 3 months NOAA/ NWS CPC (Xie)[3]
OPI, SSM/I, GPI, gauge 2.5°/ pentad-RT Global/2000 Pentad 1 day NOAA/ NWS CPC (Xie)[4]
CMORPH V1.0 BIAS-CORRECTED TMI, AMSR-E, SSMI, SSMIS, AMSU, MHS, IR vectors, CPC Gauge, GPCP Pentad 0.25°/ 3-hourly 50°N-S/1998 Daily 18 hours NOAA/ CPC (Xie)[5]
CMORPH V1.0 BLENDED TMI, AMSR-E, SSMI, SSMIS, AMSU, MHS, IR vectors, daily gauge 0.25°/ 3-hourly 50°N-S regional/1998 Daily 18 hours NOAA/ CPC (Xie)[5]
GPCP One-Degree Daily (Version 1.2) SSMI- & SSMIS-TMPI (IR), TOVS, AIRS, GPCP monthly 1°/ daily Global - 50°N-50°S/Oct. 1997 - July 2011 Monthly 3 months NASA/ GSFC 612 (Huffman)[6]
GPCP pentad (Version 1.1) OPI, SSM/I, GPI, MSU, gauge, GPCP monthly 2.5°/ 5-day Global/1979 - 2008 Seasonal 3 months NOAA/ NWS CPC (Xie)[7]
GPCP Version 2.2 Satellite-Gauge (SG) GPCP-OPI, gauge 1/79-7/87, 12/87, thereafter SSMI- & SSMIS-AGPI (IR), gauge, TOVS, AIRS 2.5°/ monthly Global/1979 - 2010 Monthly 2 months NASA/ GSFC 612 (Huffman, Adler)[8]
PERSIANN-CDR GRIDSAT-IRWIN, GPCP Monthly Precipitation 0.25°/ daily 60°N-S/1980 Monthly 2 months UC Irvine (Hsu)[9]
PR-OBS-5 PR-OBS-3, gauge, radar, NWP 5 km/ 3-hour Europe/Jan 2009 3 hours 0.5 hours H SAF (Vocino)[10]
RFE GPI, NOAA-SSM/I, gauge 10 km/ daily Africa/Oct 2000 Daily 6 hours NOAA/NWS CPC (Xie)[11]
10 km/daily South Asia/Apr 2001 Daily 6 hours NOAA/ NWS CPC (Xie)[12]
TRMM Plus Other Data (3B43 Version 7) TCI, TMI, SSMI, SSMIS, AMSR-E, AMSU, MHS, MW-VAR (IR), gauge 0.25°/ monthly Global - 50°N-S/Jan 1998 Monthly 2 months NASA/ GSFC PPS (Huffman, Adler)[13]
TRMM Plus Other Satellites (3B42 Version 7) TCI, TMI, SSMI, SSMIS, AMSR-E, AMSU, MHS, MW-VAR (IR), gauge 0.25°/ 3-hourly Global - 50°N-S/Jan 1998 Monthly 2 months NASA/ GSFC PPS (Huffman, Adler)[13]


[1] ftp://ftp.cpc.ncep.noaa.gov/precip/data-req/cams_opi_v0208/
[2] ftp://ftp.cpc.ncep.noaa.gov/precip/cmap/monthly/
[3] ftp://ftp.cpc.ncep.noaa.gov/precip/cmap/pentad/
[4] ftp://ftp.cpc.ncep.noaa.gov/precip/cmap/pentad_rt/
[5] ftp://ftp.cpc.ncep.noaa.gov/precip/CMORPH_V1.0
[6] ftp://meso.gsfc.nasa.gov/pub/1dd-v1.2/
[7] ftp://ftp.cpc.ncep.noaa.gov/precip/GPCP_PEN/
[8] ftp://meso.gsfc.nasa.gov/pub/gpcp-v2.2/psg
[9] Refer to Dr. Kuolin Hsu, kuolinh@uci.edu
[10] http://hsaf.meteoam.it/precipitation.php?tab=5
[11] ftp://ftp.cpc.ncep.noaa.gov/fews/newalgo_est/
[12] ftp://ftp.cpc.ncep.noaa.gov/fews/S.Asia/
[13] http://mirador.gsfc.nasa.gov/cgi-bin/mirador/presentNavigation.pl?tree=project&project=TRMM&dataGroup=Gridded