NMC Global Tropospheric Analyses, tropopause subset

NCEP Global Tropospheric Analyses on 2.5 degree grids, one for each hemisphere, from 1 July 1976 to 12 April 1997. The Flattery analysis method was used through 21 September 1978. It forced a relationship between heights and winds which causes the zonal mean meridional wind at every level to be zero. This also caused other problems with winds in equatorial areas. The optimal analysis (OI) method (12 layer) started on 22 September 1978. In April 1985 the Medium Range Forecast (MRF) model started, with 18 layers. Analyses include geopotential height, temperature, wind (u- and v-components) and potential temperature. In more recent years the temperature analyses are derived from thickness temperatures.

To Access Resource:

Questions? Email Resource Support Contact:

  • Chi-Fan Shih
    chifan@ucar.edu
    NSF NCAR - Geoscience Data Exchange

Temporal Range

  • Begin:  1976-07-01T00:00:00Z
    End:  1996-08-27T12:00:00Z

Keywords

Resource Type dataset
Temporal Range Begin 1976-07-01T00:00:00Z
Temporal Range End 1996-08-27T12:00:00Z
Temporal Resolution N/A
Bounding Box North Lat N/A
Bounding Box South Lat N/A
Bounding Box West Long N/A
Bounding Box East Long N/A
Spatial Representation N/A
Spatial Resolution N/A
Related Links N/A
Additional Information N/A
Resource Format NCEP_ON84
Standardized Resource Format OTHER
Asset Size 610.00 MB
Legal Constraints

Creative Commons Attribution 4.0 International License
Access Constraints None
Software Implementation Language N/A

Resource Support Name Chi-Fan Shih
Resource Support Email chifan@ucar.edu
Resource Support Organization NSF NCAR - Geoscience Data Exchange
Distributor NSF NCAR Geoscience Data Exchange
Metadata Contact Name N/A
Metadata Contact Email datahelp@ucar.edu
Metadata Contact Organization NSF NCAR Geoscience Data Exchange

Author National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce
Publisher NSF National Center for Atmospheric Research
Publication Date 1993-12-01
Digital Object Identifier (DOI) https://doi.org/10.5065/8X18-Z644
Alternate Identifier d082002
Resource Version N/A
Topic Category climatologyMeteorologyAtmosphere
Progress completed
Metadata Date 2025-10-02T23:46:22Z
Metadata Record Identifier edu.ucar.gdex::d082002
Metadata Language eng; USA
Suggested Citation National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce. (1993). NMC Global Tropospheric Analyses, tropopause subset. NSF National Center for Atmospheric Research. https://doi.org/10.5065/8X18-Z644. Accessed 04 October 2025.

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