NCEP/NCAR Reanalysis
The NCEP/NCAR Reanalysis is an atmospheric reanalysis produced by the National Centers for Environmental Prediction (NCEP) and the National Center for Atmospheric Research (NCAR). It is a continually updated globally gridded data set that represents the state of the Earth's atmosphere, incorporating observations and numerical weather prediction (NWP) model output from 1948 to present.
Accessing the data
The data is available for free download from the NOAA Earth System Research Laboratory{{cite web |url=http://www.cdc.noaa.gov/cdc/data.ncep.reanalysis.html |title=NCEP/NCAR Reanalysis |accessdate=20 November 2008 |publisher=NOAA |archive-url=https://web.archive.org/web/20081211182804/http://www.cdc.noaa.gov/cdc/data.ncep.reanalysis.html |archive-date=11 December 2008 |url-status=dead }} and NCEP.{{cite web |url=http://www.nomad3.ncep.noaa.gov/ncep_data/ |title=NCEP/NCAR Reanalysis |accessdate=10 April 2010 |publisher=NOAA |archive-url=https://web.archive.org/web/20100527091106/http://nomad3.ncep.noaa.gov/ncep_data/ |archive-date=27 May 2010 |url-status=dead }} It is distributed in Netcdf and GRIB files, for which a number of tools and libraries exist.
It is available for download through the NCAR CISL Research Data Archive on the NCEP/NCAR Reanalysis main data page.{{cite web |url=http://rda.ucar.edu/datasets/ds090.0/|title=NCEP/NCAR Reanalysis |accessdate=21 April 2015 |publisher=NCAR}}
Uses
- Initializing a smaller scale atmospheric model
- Climate assessment
Subsequent updates
Since then NCEP-DOE Reanalysis 2Kanamitsu M., W. Ebisuzaki, J. Woollen, S-K Yang, J. J. Hnilo, M. Fiorino, G. L. Potter: 2002. Bull. Amer. Meteor. Soc., 83:11, 1631–1643 and the NCEP CFS ReanalysisS. Saha, and coauthors, 2010: The NCEP Climate Forecast System Reanalysis. Bull. Amer. Meteor. Soc., 91:8, 1015–1057. are released. The former focuses in fixing existing bugs with the NCEP/NCAR Reanalysis system – most notably surface energy and usage of observed precipitation forcing to the land surface, but otherwise uses a similar numerical model and data assimilation system. The latter is based on the NCEP Climate Forecast System.S. Saha, and coauthors, 2006 : The NCEP Climate Forecast System. J. Climate, Vol. 19, No. 15, pages 3483.3517.
See also
References
{{reflist}}
Further reading
- 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, 247–268.
- 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.
External links
- [http://reanalysis.org/ Reanalyses.org website]
- [https://climatedataguide.ucar.edu/ Climate Data Guide]
{{Atmospheric, Oceanographic and Climate Models}}
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Category:Numerical climate and weather models