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EOFs of Global Precipitation and the Gridded Data Set

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Abstract: The University of Washington Joint Institute for the Study of the
Atmosphere and Ocean (JISAO) offers A. Dai's Empirical Orthogonal
Function (EOF) of global precipitation and the gridded data set.
This analysis is applied to a global, monthly precipitation data set
of 2.5-degree latitude-longitude resolution for the period 1900-88
(Dai et al. 1997). Please address correspondence to Aiguo Dai

This data may be freely downloaded from the JISAO WWW site.
Link to:

[Summary Adapted from the JISAO Homepage]
Related URL
Description: Access to Precipitation EOFs

Description: Access to Dai precipitation data 1850-1996 from NASA/GISS
Geographic Coverage
Spatial coordinates   
  N: 90.0   S: -90.0   E: 180.0   W: -180.0

Data Set Citation
Dataset Originator/Creator: A. Dai, I. Fung, A. Del Genio
Dataset Title: EOFs of Global Precipitation and the Gridded Data Set
Dataset Release Place: Seattle, Washington, USA
Dataset Publisher: Joint Institute for the Study of the Atmosphere and Ocean (JISAO)
Online Resource:
Temporal Coverage
Start Date: 1900-01-01
Stop Date: 1988-12-31
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: 1 month
Temporal Resolution Range: Monthly - < Annual
Quality Dr. Aiguo has asked that potential users be warned that "data after
1990 should be used with caution because station data have a very
limited coverage for the latest several years".
Use Constraints Please cite the dataset originators if you use this data.
Data Set Progress
Originating Center
Distribution Media: Online (HTTP)
Distribution Size: 37 Mb
Distribution Format: netCDF
Fees: None
Email: adai at
Contact Address:
NASA/Goddard Institute for Space Studies
2880 Broadway
City: New York
Province or State: NY
Postal Code: 10025
Country: USA
Dai, A., I. Y. Fung, and A. D. Del Genio (1997), Surface observed global land precipitation variations during 1900-1988, J. Climate, No.11, 10, 2943-2962,
Extended Metadata Properties
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Creation and Review Dates
Last DIF Revision Date: 2017-08-23