NCEP/NCAR Global Reanalysis Products, 1948-continuing
Entry ID: NCAR_DS090.0

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Summary
Abstract: Products from NCEP/NCAR Reanalysis Project (NNRP or R1) are archived in this dataset. The resolution of the global Reanalysis Model is T62 (209 km) with 28 vertical sigma levels. Results are available at 6 hour intervals. Although the initial plan is to reanalyze the data for a 40-year period (1957-1996), production has gone back to 1948 and going forward continuously. Future plans call for rerunning the entire period as next generation models are ready. There are over 80 different variables, (including geopotential height, temperature, relative humidity, u- and v- wind components, etc.) in several different coordinate systems, such as 17 pressure level stack on 2.5 by 2.5 degree grids, 28 sigma level stack on 192 by 94 Gaussian grids, and 11 isentropic level stack on 2.5 by 2.5 degree grid. They are organized as different subgroups in the archive. In addition to analyses, diagnostic terms (for example: radiative heating, convective heating) and accumulative variables (like precipitation rate) are present. The input observations are archived with quality and usage flags in WMO BUFR format. Most of the project outputs are stored in WMO GRIB format. Other files, such as restart files and zonal statistics, are saved in IEEE format. Some special periods are analyzed more than once to provide data for special research studies. For example, a special run of 1979 was made excluding most satellite inputs. This run could be used for evaluating the impact of satellite data on the analysis. During the TOGA COARE experiment period, special runs of reanalysis model without experimental data are archived under the TOGA COARE directory. For details and problems, see NCEP/NCAR Reanalysis TOGA COARE [http://rda.ucar.edu/datasets/ds090.0/inventories/TOGA-COARE/]. Monthly means are on line at ds090.2 [http://rda.ucar.edu/datasets/ds090.2/]. The R1 forecasts are in ds090.1 [http://rda.ucar.edu/datasets/ds090.1/] dataset.

Related URL
Link: VIEW RELATED INFORMATION
Description: Description of the NCEP/NCAR (R1) Reanalysis at the NCAR Climate Data Guide


Link: VIEW RELATED INFORMATION
Description: NCEP/NCAR Reanalysis Project(CDAS)


Link: VIEW RELATED INFORMATION
Description: NCEP/NCAR Reanalysis Project Information


Geographic Coverage
 N: 90.0 S: -90.0  E: 180.0  W: -180.0

Data Set Citation
Dataset Originator/Creator: UCAR/NCAR/CISL/DSS > Data Support Section, Computational and Information Systems Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research
Dataset Title: NCEP/NCAR Global Reanalysis Products, 1948-continuing
Dataset Publisher: UCAR/NCAR/CISL/DSS > Data Support Section, Computational and Information Systems Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research
Online Resource: http://rda.ucar.edu/datasets/ds090.0/


Temporal Coverage
Start Date: 1948-01-01
Stop Date: 2015-02-01


Science Keywords
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >SURFACE TEMPERATURE >VIRTUAL TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >SEA LEVEL PRESSURE    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >VORTICITY    [Definition]
ATMOSPHERE >ATMOSPHERIC RADIATION >INCOMING SOLAR RADIATION    [Definition]
ATMOSPHERE >ATMOSPHERIC RADIATION >OUTGOING LONGWAVE RADIATION    [Definition]
LAND SURFACE >SURFACE THERMAL PROPERTIES >SKIN TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >SURFACE TEMPERATURE >AIR TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >SURFACE TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC RADIATION >HEAT FLUX    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >SURFACE TEMPERATURE >POTENTIAL TEMPERATURE    [Definition]
LAND SURFACE >SOILS >SOIL MOISTURE/WATER CONTENT    [Definition]
ATMOSPHERE >ATMOSPHERIC WATER VAPOR >EVAPORATION    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >GRAVITY WAVE    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >SURFACE TEMPERATURE >MAXIMUM/MINIMUM TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC RADIATION >SHORTWAVE RADIATION    [Definition]
ATMOSPHERE >ATMOSPHERIC RADIATION >LONGWAVE RADIATION    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >SURFACE PRESSURE    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >HYDROSTATIC PRESSURE    [Definition]
ATMOSPHERE >PRECIPITATION >PRECIPITATION RATE    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >UPPER LEVEL WINDS    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >SURFACE WINDS    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >STREAMFUNCTIONS    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >VERTICAL WIND MOTION    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >CONVERGENCE/DIVERGENCE    [Definition]
ATMOSPHERE >ATMOSPHERIC WATER VAPOR >HUMIDITY    [Definition]
ATMOSPHERE >ATMOSPHERIC WATER VAPOR >PRECIPITABLE WATER    [Definition]
TERRESTRIAL HYDROSPHERE >SNOW/ICE >SNOW WATER EQUIVALENT    [Definition]
ATMOSPHERE >ALTITUDE >GEOPOTENTIAL HEIGHT    [Definition]
LAND SURFACE >LAND USE/LAND COVER >LAND USE/LAND COVER CLASSIFICATION    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >RUNOFF    [Definition]
OCEANS >SEA ICE >ICE EXTENT    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >WIND SHEAR    [Definition]
BIOSPHERE >VEGETATION >VEGETATION SPECIES    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >SURFACE TEMPERATURE >TEMPERATURE TENDENCY    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >PRESSURE TENDENCY    [Definition]
LAND SURFACE >TOPOGRAPHY >SURFACE ROUGHNESS    [Definition]
LAND SURFACE >SURFACE RADIATIVE PROPERTIES >ALBEDO    [Definition]
ATMOSPHERE >ATMOSPHERIC WATER VAPOR >DEW POINT TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >ATMOSPHERIC STABILITY    [Definition]
OCEANS >OCEAN TEMPERATURE >SEA SURFACE TEMPERATURE    [Definition]
ATMOSPHERE >ALTITUDE >TROPOPAUSE    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >ATMOSPHERIC PRESSURE MEASUREMENTS    [Definition]
ATMOSPHERE >CLOUDS >CLOUD PROPERTIES >CLOUD BASE PRESSURE    [Definition]
ATMOSPHERE >CLOUDS >CLOUD PROPERTIES >CLOUD TOP PRESSURE    [Definition]
ATMOSPHERE >CLOUDS >CLOUD PROPERTIES >CLOUD FREQUENCY    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE


Project
NNRP >NCEP/NCAR Reanalysis Project    [Information]


Keywords
REANALYSIS MODELS
MODELS
NCEP/NCAR-RM > NCEP/NCAR Reanalysis Model


Data Set Progress
IN WORK


Data Center
Research Data Archive, Computational and Information Systems Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research    [Information]
Data Center URL: http://rda.ucar.edu/
Dataset ID: 090.0

Data Center Personnel
Name: RDA HELP DESK
Phone: (303)-497-1231
Fax: (303)-497-1291
Email: rdahelp at ucar.edu
Contact Address:
National Center for Atmospheric Research
CISL/DSS
P.O. Box 3000
City: Boulder
Province or State: CO
Postal Code: 80307
Country: U.S.A.



Distribution
Distribution_Size: 3.322 Tbytes

Distribution_Format: BUFR > Binary Universal Form for the Representation of meteorological data

Distribution_Format: GRIB1 > GRIdded Binary form, Edition 1


Personnel
CHI-FAN SHIH
Role: TECHNICAL CONTACT
Phone: (303)-497-1833
Fax: (303)-497-1291
Email: chifan at ucar.edu
Contact Address:
National Center for Atmospheric Research
CISL/DSS
P.O. Box 3000
City: Boulder
Province or State: CO
Postal Code: 80307
Country: U.S.A.


BOB DATTORE
Role: DIF AUTHOR
Phone: (303)-497-1825
Fax: (303)-497-1291
Email: dattore at ucar.edu
Contact Address:
National Center for Atmospheric Research
CISL/DSS
P.O. Box 3000
City: Boulder
Province or State: CO
Postal Code: 80307
Country: U.S.A.


Publications/References
Kistler, R., E. Kalnay, W. Collins, S. Saha, G. White, J. Woollen, M. Chelliah, W. Ebisuzaki, M. Kanamitsu, V. Kousky, H. van den Dool, R. Jenne, and M. Fiorino, 2001: The NCEP-NCAR 50-Year Reanalysis: Monthly Means CD-ROM and Documentation. Bull. Amer. Meteor. Soc., 82, 247-267. Kalnay, E., M. Kanamitsu, R. Kistler, W. Collins, D. Deaven, L. Gandin, M. Iredell, S. Saha, G. White, J. Woollen, Y. Zhu, M. Chelliah, W. Ebisuzaki, W. Higgins, J. Janowiak, K.C. Mo, C. Ropelewski, J. Wang, A. Leetmaa, R. Reynolds, R. Jenne, and D. Joseph, 1996: The NCEP/NCAR 40-year reanalysis project. Bull. Amer. Meteor. Soc., 77, 437-471.

Creation and Review Dates
Last DIF Revision Date: 2015-03-06

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