Go to Dataset:  
NCEP FNL Operational Model Global Tropospheric Analyses, continuing from July 1999
ds083.2 | DOI: 10.5065/D6M043C6
For help with this dataset, send us a message.
Description
Data Access
Documentation
Software
Metrics
Help with this page: RDA dataset description page video tour
Data Citations:  This dataset has been cited 347 times.
Published works that cited this dataset
Abstract:

These NCEP FNL (Final) Operational Global Analysis data are on 1-degree by 1-degree grids prepared operationally every six hours. This product is from the Global Data Assimilation System (GDAS), which continuously collects observational data from the Global Telecommunications System (GTS), and other sources, for many analyses. The FNLs are made with the same model which NCEP uses in the Global Forecast System (GFS), but the FNLs are prepared about an hour or so after the GFS is initialized. The FNLs are delayed so that more observational data can be used. The GFS is run earlier in support of time critical forecast needs, and uses the FNL from the previous 6 hour cycle as part of its initialization.

The analyses are available on the surface, at 26 mandatory (and other pressure) levels from 1000 millibars to 10 millibars, in the surface boundary layer and at some sigma layers, the tropopause and a few others. Parameters include surface pressure, sea level pressure, geopotential height, temperature, sea surface temperature, soil values, ice cover, relative humidity, u- and v- winds, vertical motion, vorticity and ozone.

The archive time series is continuously extended to a near-current date. It is not maintained in real-time.
Temporal Range: 1999-07-30 18:00 +0000 to 2022-12-31 18:00 +0000 (Entire dataset)
Period details by dataset product
Updates: Daily
Variables:
Air Temperature Cloud Liquid Water/Ice Convection Evaporation
Geopotential Height Humidity Hydrostatic Pressure Ice Extent
Land Use/Land Cover Classification Planetary Boundary Layer Height Potential Temperature Sea Level Pressure
Sea Surface Temperature Skin Temperature Snow Water Equivalent Soil Moisture/Water Content
Soil Temperature Surface Pressure Surface Winds Terrain Elevation
Total Precipitable Water Tropopause Tropospheric Ozone Upper Air Temperature
Upper Level Winds Vertical Wind Velocity/Speed Vorticity  
GRIB parameter table: HTML | XML
GRIB2 parameter table: HTML | XML
Variables by dataset product
Vertical Levels:
Data Types: Grid
Spatial Coverage: Longitude Range: Westernmost=180W Easternmost=180E
Latitude Range: Southernmost=90S Northernmost=90N
Detailed coverage information
Data Contributors: DOC/NOAA/NWS/NCEP
National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce
Related Resources:
WRF Preprocessing System (WPS):The GRIB-formatted data in this dataset can be used to initialize the Weather Research and Forecasting (WRF) Model.
WRF Vtables
How to Cite This Dataset:
RIS
BibTeX
National Centers for Environmental Prediction/National Weather Service/NOAA/U.S. Department of Commerce. 2000, updated daily. NCEP FNL Operational Model Global Tropospheric Analyses, continuing from July 1999. Research Data Archive at the National Center for Atmospheric Research, Computational and Information Systems Laboratory. https://doi.org/10.5065/D6M043C6. Accessed† dd mmm yyyy.
  †Please fill in the "Accessed" date with the day, month, and year (e.g. - 5 Aug 2011) you last accessed the data from the RDA.
Bibliographic citation shown in
style
Get a customized data citation (must be signed in)
Total Volume: 708.74 GB (Entire dataset)
Volume details by dataset product
Data Formats:
Related RDA Datasets:
More Details: View more details for this dataset, including dataset citation, data contributors, and other detailed metadata
RDA Blog: Read posts on the RDA blog that are related to this dataset
Data Access: Click here or on the "Data Access" tab in the navigation bar near the top of the page
Metadata Record:
Display in
 format
Data License:
Citation counts are compiled through information provided by publicly-accessible APIs according to the guidelines developed through the https://makedatacount.org/ 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.