Arkin and Janowiak GPI: IR -Based Monthly Rainfall for the GPCP
Entry ID: ajrain

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Abstract: The Arkin & Janowiak GPI (GOES Precipitation Index) is the infrared-based
monthly rainfall estimate produced for the GPCP (Global Precipitation
Climatology Project) . The infrared observations from geostationary
satellites (GOES, GMS, Meteosat) are used to produce these monthly mean
rainfall totals on a 2.5 deg by 2.5 deg grid from 40 N to 40 S for the
period Jan 1986 to Dec 1995 . The data set volume is 4.54 Mb (compressed)
and is available by ftp.
Related URL
Description: Access the data via FTP.

Description: "Arkin and Janowiak GPI: IR -Based Monthly Rainfall for the GPCP" readme
Geographic Coverage
Spatial coordinates   
  N: 40.0   S: -40.0   E: 180.0   W: -180.0

Data Set Citation
Dataset Originator/Creator: Arkin, P., Janowiak, J.E.
Dataset Title: Arkin and Janowiak GPI: IR -Based Monthly Rainfall for the GPCP
Dataset Series Name: ajrain
Dataset Release Date: 2011-04-25
Dataset Release Place: Greenbelt, MD, USA
Dataset Publisher: Goddard Earth Science Data and Information Services Center (GES DISC)
Version: 1
Data Presentation Form: Digital Science Data
Online Resource:
Temporal Coverage
Start Date: 1986-01-01
Stop Date: 1995-12-31
Data Resolution
Latitude Resolution: 2.5 degrees
Longitude Resolution: 2.5 degrees
Temporal Resolution: Monthly Means
Temporal Resolution Range: Monthly Climatology
Data Set Progress
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: ajrain

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: On-line
Distribution Size: 4.4 Megabytes
Distribution Format: ASCII
Fees: Free
Email: parkin at
View entire list
Janowiak, J. E. and P. A. Arkin, 1991: Rainfall Variations in the
Tropics During 1986-1989, as Estimated From Observations of Cloud-Top
Temperatures. Journal of Geophysical Research, Vol. 96, Supplement,
pp. 3359 - 3373.
Extended Metadata Properties
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Creation and Review Dates
Last DIF Revision Date: 2014-08-25
Future DIF Review Date: 2015-02-01
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