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.
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  • NCEI DSI 6186_01
  • NCEI DSI 6186_02
  • NCEI DSI 6186_03
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Distribution Formats
  • GRIB 1
Distributor Customer Engagement Branch
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
1-828-271-4800
ncei.orders@noaa.gov
Dataset Point of Contact Customer Engagement Branch
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
1-828-271-4800
ncei.orders@noaa.gov
Time Period 1979-01-01 to Present (time interval: 6-hour)
Spatial Bounding Box Coordinates
N: 90.0
S: -90.0
E: 180.0
W: -180.0
Spatial Coverage Map
Dataset Information
General Documentation
Associated Resources
Publication Dates
  • publication: 2002-11-01
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.
Dataset Citation
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Cited Authors
  • National Centers for Environmental Prediction-Department of Energy (NCEP-DOE)
Originators
  • National Centers for Environmental Prediction-Department of Energy (NCEP-DOE)
Publishers
  • NOAA National Centers for Environmental Information
Theme keywords Global Change Master Directory (GCMD) Science Keywords
  • Earth Science > Atmosphere > Altitude > Geopotential Height
  • Earth Science > Atmosphere > Atmospheric Pressure > Pressure Thickness
  • Earth Science > Atmosphere > Atmospheric Pressure > Sea Level Pressure
  • Earth Science > Atmosphere > Atmospheric Pressure > Surface Pressure
  • Earth Science > Atmosphere > Atmospheric Radiation > Heat Flux
  • Earth Science > Atmosphere > Atmospheric Radiation > Incoming Solar Radiation
  • Earth Science > Atmosphere > Atmospheric Radiation > Longwave Radiation
  • Earth Science > Atmosphere > Atmospheric Radiation > Outgoing Longwave Radiation
  • Earth Science > Atmosphere > Atmospheric Radiation > Radiative Flux
  • Earth Science > Atmosphere > Atmospheric Radiation > Shortwave Radiation
  • Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Air Temperature
  • Earth Science > Atmosphere > Atmospheric Temperature > Boundary Layer Temperature
  • Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Maximum/Minimum Temperature
  • Earth Science > Atmosphere > Atmospheric Temperature > Upper Air Temperature
  • Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indices > Humidity
  • Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Total Precipitable Water
  • Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Water Vapor Profiles
  • Earth Science > Atmosphere > Atmospheric Winds > Surface Winds
  • Earth Science > Atmosphere > Atmospheric Winds > Upper Level Winds
  • Earth Science > Atmosphere > Atmospheric Winds > Wind Dynamics > Vertical Wind Velocity/Speed
  • Earth Science > Atmosphere > Atmospheric Winds > Wind Dynamics > Vorticity
  • Earth Science > Atmosphere > Atmospheric Winds > Wind Profiles
  • Earth Science > Land Surface > Soils > Soil Moisture/Water Content
  • Earth Science > Land Surface > Surface Thermal Properties > Land Surface Temperature
  • Earth Science > Land Surface > Soils > Soil Temperature
Place keywords Global Change Master Directory (GCMD) Location Keywords
  • Geographic Region > Global
Stratum keywords Global Change Master Directory (GCMD) Location Keywords
  • Vertical Location > Troposphere
  • Vertical Location > Land Surface
  • Vertical Location > Sea Surface
Use Constraints
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  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Access Constraints
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Fees
  • In most cases, electronic downloads of the data are free, however fees may apply for data certifications, copies of analog materials, and data distribution on physical media.
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Lineage Statement
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Processing Steps
  • 2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
Last Modified: 2018-05-25
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