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Dataset: Full Collection Dataset
Catalog: CISL Research Data Archive Dataset ds084.4/ds083.3 NCEP GDAS/FNL 0.25 Degree Global Tropospheric Analyses and Forecast Grids/ds083.3 Aggregation
dataFormatGRIB-2
authorityedu.ucar.rda
featureTypeGRID
idaggregations/g/ds083.3/1/TP
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Access:

ServiceTypeDescription
OpenDAP Data Access Access dataset through OPeNDAP using the DAP2 protcol.
DAP4 Data Access Access dataset through OPeNDAP using the DAP4 protocol.
NetcdfSubset Data Access A web service for subsetting CDM scientific datasets.
CdmRemote Data Access Provides index subsetting on remote CDM datasets, using ncstream.
CdmrFeature Data Access Provides coordinate subsetting on remote CDM Feature Datasets, using ncstream.
WCS Data Access Supports access to geospatial data as 'coverages'.
WMS Data Access Supports access to georegistered map images from geoscience datasets.
ISO Metadata Provide ISO 19115 metdata representation of a dataset's structure and metadata.
NCML Metadata Provide NCML representation of a dataset.
UDDC Metadata An evaluation of how well the metadata contained in the dataset conforms to the NetCDF Attribute Convention for Data Discovery (NACDD)

Viewers:

ViewerTypeDescription
Godiva3 Browser
default_viewer.ipynb Jupyter Notebook The TDS default viewer attempts to plot any Variable contained in the Dataset.
Documentation
Keywords
Creators
Publishers
Geospatial Coverage
Time Coverage
Properties

Description:

  • summary: Multiple reference, unique time Grib Partition
  • Rights: Freely Available
  • summary: These NCEP FNL (Final) operational global analysis and forecast data are on 0.25-degree by 0.25-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.
  • summary: 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.
  • summary: The archive time series is continuously extended to a near-current date. It is not maintained in real-time.
  • NCEP GDAS/FNL 0.25 Degree Global Tropospheric Analyses and Forecast Gridss (ds083.3)
  • NCEP Model documentation

Keywords:

  • : Numerical Weather Prediction
  • : NCEP
  • : Model data
  • : GFS

Creators:

Publishers:

GeospatialCoverage:

  • Longitude: 0.0 to 359.75 Resolution=0.25 degrees_east
  • Latitude: -90.0 to 90.0 Resolution=0.25 degrees_north

TimeCoverage:

  • Start: 2015-07-08T00:00:00Z
  • End: 2023-03-13T09:00:00Z
  • Duration: 7.6808 years

Properties:

  • Originating_or_generating_Center = US National Weather Service, National Centres for Environmental Prediction (NCEP)
  • Originating_or_generating_Subcenter = 0
  • GRIB_table_version = 2,1
  • Type_of_generating_process = Forecast
  • Analysis_or_forecast_generating_process_identifier_defined_by_originating_centre = Analysis from GFS (Global Forecast System)
  • file_format = GRIB-2
  • Conventions = CF-1.6
  • history = Read using CDM IOSP GribCollection v3
  • featureType = GRID
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