ESA Data Ontology: ESADO: NCEP/NCAR-RM

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NCEP/NCAR-RM

The NCEP/NCAR Reanalysis 1 project is using a state-of-the-art analysis/forecast system to perform data assimilation using past data from 1948 to the present. A large subset of this data is available from PSL in its original 4 times daily format and as daily averages. However, the data from 1948-1957 is a little different, in the regular (non-Gaussian) gridded data. That data was done at 8 times daily in the model, because the inputs available in that era were available at 3Z, 9Z, 15Z, and 21Z, whereas the 4x daily data has been available at 0Z, 6Z, 12Z, and 18Z. These latter times were forecasted and the combined result for this early era is 8x daily. The local ingestion process took only the 0Z, 6Z, 12Z, and 18Z forecasted values, and thus only those were used to make the daily time series and monthly means here. (en)

2015-08-10 14:51:41.0 [epneff] Insert Concept add broader relation (NCEP/NCAR-RM [b1c1ea44-000a-4535-8e90-d8dd447371d4,158243] - Models/Analyses [113ecbc2-ab36-4d58-a96c-a6ce0106e749,143215]);
2015-08-10 14:52:00.0 [epneff] Added long name insert AltLabel (id: null text: NCEP/NCAR Reanalysis Model language code: en);
2021-11-30 13:25:23.0 [tstevens] Move Concepts delete broader relation (null); add broader relation (NCEP/NCAR-RM [b1c1ea44-000a-4535-8e90-d8dd447371d4,826651] - Models [0a184cdc-c074-4946-90a6-02f03c686341,835911]);
2022-03-11 14:06:26.0 [tstevens] insert Definition (id: null text: The NCEP/NCAR Reanalysis 1 project is using a state-of-the-art analysis/forecast system to perform data assimilation using past data from 1948 to the present. A large subset of this data is available from PSL in its original 4 times daily format and as daily averages. However, the data from 1948-1957 is a little different, in the regular (non-Gaussian) gridded data. That data was done at 8 times daily in the model, because the inputs available in that era were available at 3Z, 9Z, 15Z, and 21Z, whereas the 4x daily data has been available at 0Z, 6Z, 12Z, and 18Z. These latter times were forecasted and the combined result for this early era is 8x daily. The local ingestion process took only the 0Z, 6Z, 12Z, and 18Z forecasted values, and thus only those were used to make the daily time series and monthly means here. language code: en);

https://gcmd.earthdata.nasa.gov/kms/concept/b1c1ea44-000a-4535-8e90-d8dd447371d4

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