Project Description

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Still under construction.

The NCEP/NCAR Reanalysis Project is an effort to reanalyze historical data using state-of-the-art models. The first datasets from the Reanalysis Project are now available.

NCEP's role

Using a current and fixed (Jan. 1995) version of a data assimilation and operational forecast model:

Model Description
- horizontal spectral resolution
- vertical resolution
- time step
- data ingest, qc,
- target schedule, i.e. reanalyze 1 year each calendar month
Other stuff

NCAR's role

Collect and organize many of the land and marine surface data archives. Provide these to NCEP along with many observed upper and aircraft observations. Following the reanalysis processing at NCEP, receive the output archives. Store the archives in NCAR MSS storage system.

Input data
- marine surface
- land surface
- raobs, pibal, etc upper air
- aircraft (military and commercial)
- etc
Output data
- analyses
- forecasts
- qc'ed input data
- spectral restart files
- etc

Reanalysis at other laboratories and universities

Various other reanalysis experiments have been and are being conducted. See list of other reanalysis projects.

[Project Overview] [NCEP/NCAR Global Reanalysis Project]

[Acronyms Used] [Frequently Asked Questions]

updated 6/19/96

Updated 22 July 2005