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ESA Data Ontology

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Platforms > Other > Models > GDAS

Preferred term

GDAS  

Definition

  • The Global Data Assimilation System (GDAS) is the system used by the National Center for Environmental Prediction (NCEP) Global Forecast System (GFS) model to place observations into a gridded model space for the purpose of starting, or initializing, weather forecasts with observed data. GDAS adds the following types of observations to a gridded, 3-D, model space: surface observations, balloon data, wind profiler data, aircraft reports, buoy observations, radar observations, and satellite observations. (en)

Broader concept

Change note

  • 2020-06-19 13:38:18.0 [mmorahan] Insert Concept add broader relation (GDAS [b316bcaf-1ab8-4a67-91b7-76c28bb29e4e,560388] - Models/Analyses [113ecbc2-ab36-4d58-a96c-a6ce0106e749,541255]);
  • 2020-06-19 13:40:13.0 [mmorahan] insert AltLabel (id: null category: primary text: Global Data Assimilation System language code: en); insert Definition (id: null text: The Global Data Assimilation System (GDAS) is the system used by the National Center for Environmental Prediction (NCEP) Global Forecast System (GFS) model to place observations into a gridded model space for the purpose of starting, or initializing, weather forecasts with observed data. GDAS adds the following types of observations to a gridded, 3-D, model space: surface observations, balloon data, wind profiler data, aircraft reports, buoy observations, radar observations, and satellite observations. language code: en);
  • 2021-11-30 13:33:30.0 [tstevens] Move Concepts delete broader relation (null); add broader relation (GDAS [b316bcaf-1ab8-4a67-91b7-76c28bb29e4e,826655] - Models [0a184cdc-c074-4946-90a6-02f03c686341,835911]);

URI

https://gcmd.earthdata.nasa.gov/kms/concept/b316bcaf-1ab8-4a67-91b7-76c28bb29e4e

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