CPC Global Summary of Day/Month Observations, 1979-continuing

This global summary of the day and month data set is obtained on a delayed monthly basis from the Climate Prediction Center (CPC) of the National Centers for Environmental Prediction (NCEP). CPC extracts surface synoptic weather observations from the Global Telecommunications System (GTS) and performs limited automated validation of the parameters. The data is then summarized for all reporting stations on a daily basis to current operational requirements related to the assessment of crop and energy production.

Data coverage begins in 1979. In 1987 there is a format change and additional parameters were added. Major parameters include maximum temperature, minimum temperature, precipitation, vapor pressure, sea level pressure, maximum relative humidity, and minimum relative humidity. If the maximum or minimum temperatures are not reported, they are estimated from reported air temperatures in the regular synoptic reports when sufficient data exist. Starting in 1994, total sky cover, 3-hourly wind direction and speed, and total snow depth are included. There are approximately 8900 actively reporting stations. Periods of record vary widely among the stations.

CAUTIONARY NOTE: NCEP incorrectly decoded the wind units indicator from February 1, 2001 until 1500 UTC on June 11, 2002, which caused a knots versus meters-per-second problem. Not all stations were affected. Users may, with caution, apply the knots or meters-per-second conversion where it appears to be the correct choice.

To Access Resource:

Questions? Email Resource Support Contact:

  • Chi-Fan Shih
    chifan@ucar.edu
    UCAR/NCAR - Research Data Archive

Temporal Range

  • Begin:  1987-01-01
    End:  2012-03-31

Keywords

Resource Type dataset
Temporal Range Begin 1987-01-01
Temporal Range End 2012-03-31
Temporal Resolution N/A
Bounding Box North Lat 83.63
Bounding Box South Lat -90
Bounding Box West Long -179.98
Bounding Box East Long 179.75
Spatial Representation N/A
Spatial Resolution N/A
Related Links N/A
Additional Information N/A
Asset Size 13729 MB
Legal Constraints Use of this dataset is subject to UCAR's Terms of Use, except that commercial use is generally not prohibited.
Access Constraints Registration on the RDA web site is a requirement for access to the data.
Software Implementation Language N/A
Resource Support Name Chi-Fan Shih
Resource Support Email chifan@ucar.edu
Resource Support Organization UCAR/NCAR - Research Data Archive
Science Support Name N/A
Science Support Email N/A
Science Support Organization N/A
Distributor NCAR Research Data Archive
Metadata Contact Name N/A
Metadata Contact Email rdahelp@ucar.edu
Metadata Contact Organization NCAR Research Data Archive
Author Climate Prediction Center, National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce
Publisher Research Data Archive at the National Center for Atmospheric Research, Computational and Information Systems Laboratory
Publication Date 1987-03-27
Digital Object Identifier (DOI) Not Assigned
Alternate Identifier ds512.0
Resource Version N/A
Topic Category climatologyMeteorologyAtmosphere
Progress onGoing
Metadata Date 2018-09-17T12:05:01-07:00
Metadata Record Identifier edu.ucar.rda::ds512.0
Metadata Language eng; USA
Suggested Citation Climate Prediction Center, National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce. (1987). CPC Global Summary of Day/Month Observations, 1979-continuing. Research Data Archive at the National Center for Atmospheric Research, Computational and Information Systems Laboratory. https://rda.ucar.edu/datasets/ds512.0/. Accessed 21 October 2018.

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