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GCIP/EOP Surface: Precipitation NCEP/EMC 1/8deg gridded data (GRIB) Gage-Only 24h accum RFC Oct 2006->


Since 21 Jan 2002, NCEP/CPC has been producing a daily (12Z-12Z) 1/8-degree precipitation analysis using the PRISM/least-squares scheme "inverse distance with PRISM climatology" (John Schaake, NWS/OHD), based on the 7,000-8,000 daily gauges. Beginning Oct 2006, it is being converted into GRIB1 format at EMC operationally and is available via the UCAR codiac system. For further information about the CPC 1/8 degree analysis see the related links listed below. Dimension: 464 x 224 (1,1) point: (124.875W,25.125N) (1,224) point: (124.875W,53N) (464,1) point: (67W,25.125N) (464,224) point: (67W,53N)

Archive note

31 August 2020: Start and end dates/times on the files were updated.

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Additional information

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Related projects
Spatial Type point
Frequency daily
Language English
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 2006-10-04 11:01:00
End datetime 2008-05-31 12:00:00

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 53.00, Minimum (South) Latitude: 25.00
Minimum (West) Longitude: -125.00, Maximum (East) Longitude: -67.00

Primary point of contact information

Jun Du <>

Additional contact information


Example citation following ESIP guidelines:

Du, J., Lin, Y. 2009. GCIP/EOP Surface: Precipitation NCEP/EMC 1/8deg gridded data (GRIB) Gage-Only 24h accum RFC Oct 2006->. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 01 Mar 2021.

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