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GPCP Version 1.2 One-Degree Daily Precipitation Data Set

| DOI: 10.5065/D6D50K46

This historical dataset is recommended for ancillary use only and not as a primary research dataset. It has likely been superseded by a newer, improved dataset.


NOTE: This dataset has been superseded by GPCP Daily Precipitation Version 1.3, which is available in RDA dataset ds728.7. Users are advised to transition to this updated dataset.

This dataset contains Version 1.2 of the Global Precipitation Climatology Project (GPCP) daily precipitation estimates. The data are daily analyses defined on a global 1.0 degree by 1.0 degree longitude-latitude grid and cover the period October 1996 to (delayed) present.

Please note the original binary data produced at NASA Goddard Space Flight Center were written using the big endian representation of unformatted binary words. Users reading this data on little endian platforms, therefore, are required to byte swap the data.

This data set is a companion to the GPCP Version 2.2 Combined Precipitation Data Set (available in RDA dataset ds728.2), which contains monthly precipitation estimates at 2.5 degree by 2.5 degree longitude-latitude resolution. The daily, one-degree data provided here meets the needs of users who require precipitation estimates at finer space and time scales.

Request to users from the data authors: The GPCP datasets are developed and maintained with international cooperation and are used by the worldwide scientific community. To better understand the evolving requirements across the GPCP user community and to increase the utility of the GPCP product suite, the dataset producers request that a citation be provided for each publication that uses the GPCP products. Please email the citation to or Your help and cooperation will provide valuable information for making future enhancements to the GPCP product suite.

Temporal Range:
1996-10-01 00:00 +0000 to 2015-11-01 00:00 +0000
Precipitation Amount
Data Contributors:
Mesoscale Atmospheric Processes Branch, Laboratory for Atmospheres, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA
Huffman, G. J., R. F. Adler, M. M. Morrissey, D. T. Bolvin, S. Curtis, R. Joyce, B. McGavock, and J. Susskind, 2001: Global Precipitation at One-Degree Daily Resolution from Multisatellite Observations Journal of Hydrometeorology, 2, 36-50 (DOI: 10.1175/1525-7541(2001)002<0036:GPAODD>2.0.CO;2).

Total Volume:
0 MB
Data Formats:
Related RDA Datasets:
GPCC Full Data Reanalysis Version 7.0: Monthly Land-Surface Precipitation from Rain Gauges built on GTS based and Historic Data
GPCC Full Data Daily Version 1.0: Daily Land-Surface Precipitation from Rain Gauges built on GTS based and Historic Data
NOAA Climate Data Record (CDR) of CPC Morphing Technique (CMORPH) High Resolution Global Precipitation Estimates, Version 1
Global Precipitation Climatology Project (GPCP) Climate Data Record (CDR), Version 2.3 (Monthly)
Global Precipitation Climatology Project (GPCP) Climate Data Record (CDR), Version 1.3 (Daily)
More Details:
View a more detailed summary of the data, including specific date ranges and locations by parameter
Metadata Record:
Data License:
Citation counts are compiled through information provided by publicly-accessible APIs according to the guidelines developed through the project. If journals do not provide citation information to these publicly-accessible services, then this citation information will not be included in RDA citation counts. Additionally citations that include dataset DOIs are the only types included in these counts, so legacy citations without DOIs, references found in publication acknowledgements, or references to a related publication that describes a dataset will not be included in these counts.