GPCP Version 2.1 Combined Precipitation (Gauge and Satellite-Merged) and Intermediate Products

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Abstract: The Global Precipitation Climatology Project (GPCP) global
precipitation data set formally referred as the "GPCP Version 2.1
Combined Precipitation Dataset" supercedes the Version 1c data set and
is a merged analysis incorporating precipitation estimates from the
DMSP SSM/I microwave instrument, geosynchronous-orbit satellite
infrared data, and rain gauge observations. The dataset also contains
as "Intermediate Product" the individual input fields, a combination
of microwave and infrared satellite estimates, and error estimates for
each field. All the products are monthly averages provided on a 2.5
degree by 2.5 degree grid for the period 1979 to present.
Related URL
Description: Access to the Version 2 combined precipitation data sets
Geographic Coverage
Spatial coordinates   
  N: 90.0   S: -90.0   E: 180.0   W: -180.0

Data Set Citation
Dataset Originator/Creator: Huffman, G.J., D.T. Bolvin, and R.F. Adler
Dataset Title: GPCP Version 2.1 Combined Precipitation Data Set
Dataset Release Date: July 2009
Dataset Release Place: Greenbelt, MD
Dataset Publisher: NASA Goddard Space Flight Center
Version: Version 2.1
Online Resource:
Temporal Coverage
Start Date: 1979-01-01
Stop Date: 2009-09-30
Data Resolution
Latitude Resolution: 2.5 degree
Longitude Resolution: 2.5 degree
Horizontal Resolution Range: 250 km - < 500 km or approximately 2.5 degrees - < 5.0 degrees
Temporal Resolution: Monthly
Temporal Resolution Range: Monthly - < Annual
Originating Center
Data Center
Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA Supplemental Info
Data Center URL:
Dataset ID: G-190: AGPI Monthly
Dataset ID: G-191: GPI Monthly
Dataset ID: G-192: Multi-satellite Monthly
Dataset ID: G-193: Gauge Monthly
Dataset ID: G-194: Satellite-Gauge Monthly
Dataset ID: G-195: SSM/I Emission Monthly
Dataset ID: G-196: SSM/I Scattering Monthly
Dataset ID: G-197: SSM/I Composite Monthly

Data Center Personnel
Phone: 301-614-5224
Fax: 301-614-5268
Email: gsfc-help-disc at
Contact Address:
Goddard Earth Sciences Data and Information Services Center
Code 610.2
NASA Goddard Space Flight Center
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Distribution Media: Online (FTP)
Distribution Size: 9 MB per year
Distribution Format: Binary with ASCII header
Fees: None
Phone: 301-614-6290
Fax: 301-614-5492
Email: Robert.F.Adler at
Contact Address:
Mesoscale Atmospheric Processes Branch
Laboratory for Atmospheres
NASA/Goddard Space Flight Center
Code 613
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
View entire list
Adler, R.F., G.J. Huffman, and P.R. Keehn 1994: Global rain estimates
from microwave-adjusted geosynchronous IR data. Remote Sens. Rev.,
11, 125-152.

Arkin, P.A., and B. N. Meisner, 1987: The relationship between
large-scale convective rainfall and cold cloud over the Western
Hemisphere during 1982-1984. Mon. Wea. Rev., ... View entire text
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Creation and Review Dates
DIF Creation Date: 2010-05-18
Last DIF Revision Date: 2014-05-12
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