National Centers for Environmental Prediction-Department of Energy (NCEP-DOE) Atmospheric Model Intercomparison Project (AMIP)-II Reanalysis (Reanalysis-2)
NCEP-DOE AMIP-II Reanalysis (R-2)
The NCEP-DOE Atmospheric Model Intercomparison Project (AMIP-II) reanalysis is a follow-on project to the "50-year" (1948-present) NCEP-NCAR Reanalysis Project. NCEP-DOE AMIP-II reanalysis covers the "20-year" satellite period of 1979 to the present and uses an updated forecast model, updated data assimilation system, improved diagnostic outputs, and fixes for the known processing problems of the NCEP-NCAR reanalysis. Only minor differences are found in the primary analysis variables such as free atmospheric geopotential height and winds in the Northern Hemisphere extratropics, while significant improvements upon NCEP-NCAR reanalysis are made in land surface parameters and land-ocean fluxes. This analysis can be used as a supplement to the NCEP-NCAR reanalysis especially where the original analysis has problems. The differences between the two analyses also provide a measure of uncertainty in current analyses. Atmospheric variables include temperature, humidity, wind speed, and geopotential height. Variables are available in several coordinate systems: pressure, Gaussian grid, spectral coefficients data, and as surface data. Temporal resolution is 6-hourly (4 time a day), and as daily and monthly averages.
Dataset Citation
- Cite this dataset when used as a source.
Dataset Identifiers
- NCEI DSI 6186_01
- NCEI DSI 6186_02
- NCEI DSI 6186_03
ISO 19115-2 Metadata
gov.noaa.ncdc:C01311
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Ordering Instructions | Contact NCEI for other distribution options and instructions. |
Distributor |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Dataset Point of Contact | Customer Engagement Branch NOAA National Centers for Environmental Information 1-828-271-4800 ncei.orders@noaa.gov |
Time Period | 1979-01-01 to Present (time interval: 6-hour) |
Spatial Bounding Box Coordinates |
West: -180.0
East: 180.0
South: -90.0
North: 90.0
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Dataset Information |
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Dataset Progress Status | Ongoing - data is continually being updated |
Data Update Frequency | As needed |
Supplemental Information | Masao Kanamitsu, Wesley Ebisuzaki, Jack Woollen, Shi-Keng Yang, J. J. Hnilo, M. Fiorino, and G. L. Potter (2002): NCEP-DOE AMIP-II Reanalysis (R-2). Bulletin of the American Meteorological Society, 83:11, 1631-1643. |
Purpose | The NCEP-DOE Atmospheric Model Intercomparison Project (AMIP-II) reanalysis should not be considered as a next-generation reanalysis, but should be regarded as an updated and human error-fixed version of the National Centers for Environmental Prediction-National Center for Atmospheric Research (NCEP-NCAR) reanalysis. |
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Global Change Master Directory (GCMD) Science Keywords
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Global Change Master Directory (GCMD) Location Keywords
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Last Modified: 2023-09-18
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov