NCEP FNL Operational Model Global Tropospheric Analyses, April 1997 through June 2007 

The Final (FNL) global tropospheric analyses archived here were produced by NCEP's Global Forecast System (GFS), which was run operationally at 12-hour intervals to make multiple-day weather forecasts, from April 1997 through June 2007. FNLs are analyses that are produced after the model has completed the forecast cycle, and they include the most complete set of observations available for a given cycle. The FNL from a given cycle, which is the best available analysis, is then used in the initialization of the next cycle.


FNL Data are available on pairs of 2.5-degree hemispheric grids (North and South) at the Earth's surface, sixteen vertical levels from 1000 millibars up to 10 millibars, the tropopause, boundary layer, two subsurface levels, and a few others. Parameters include surface pressure, sea level pressure, geopotential height, temperature, sea surface temperature, potential temperature, relative humidity, snow depth (weekly, Northern Hemisphere only) precipitable water, u- and v- winds, and vertical motion.

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Temporal Range

  • Begin:  1997-04-01T0000+00
    End:  2007-06-30T1200+00

Keywords

Resource Type dataset
Temporal Range Begin 1997-04-01T0000+00
Temporal Range End 2007-06-30T1200+00
Temporal Resolution N/A
Bounding Box North Lat 90.0
Bounding Box South Lat -90.0
Bounding Box West Long -180.0
Bounding Box East Long 180.0
Spatial Representation grid
Spatial Resolution 2.5 degree
Related Links

Related Resource #1 : NMC EMC Model Documentation

Related Resource #2 : NCEP Global Parallel System Documentation

Related Resource #3 : MRF/AVN/GDAS CHANGES SINCE 1991
Additional Information N/A
Resource Format WMO GRIB1
Standardized Resource Format GRIB
Asset Size 9791.758 MB
Legal Constraints

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

Resource Support Name N/A
Resource Support Email datahelp@ucar.edu
Resource Support Organization N/A
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 1997-07-17
Digital Object Identifier (DOI) https://doi.org/10.5065/D6FB50XD
Alternate Identifier d083000
Resource Version N/A
Topic Category climatologyMeteorologyAtmosphere
Progress completed
Metadata Date 2025-10-09T01:19:29Z
Metadata Record Identifier edu.ucar.gdex::d083000
Metadata Language eng; USA
Suggested Citation National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce. (1997). NCEP FNL Operational Model Global Tropospheric Analyses, April 1997 through June 2007. NSF National Center for Atmospheric Research. https://doi.org/10.5065/D6FB50XD. Accessed 09 October 2025.

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