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Documentation and Validation of the Goddard Earth Observing System (GEOS) Data Assimilation System, Version 4This document describes the structure and validation of a frozen version of the Goddard Earth Observing System Data Assimilation System (GEOS DAS): GEOS-4.0.3. Significant features of GEOS-4 include: version 3 of the Community Climate Model (CCM3) with the addition of a finite volume dynamical core; version two of the Community Land Model (CLM2); the Physical-space Statistical Analysis System (PSAS); and an interactive retrieval system (iRET) for assimilating TOVS radiance data. Upon completion of the GEOS-4 validation in December 2003, GEOS-4 became operational on 15 January 2004. Products from GEOS-4 have been used in supporting field campaigns and for reprocessing several years of data for CERES.
Document ID
20050175690
Document Type
Technical Memorandum (TM)
Authors
Suarez, Max J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
daSilva, Arlindo (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Dee, Dick (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Bloom, Stephen (Science Applications International Corp. Beltsville, MD, United States)
Bosilovich, Michael (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Pawson, Steven (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Schubert, Siegfried (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Wu, Man-Li (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Sienkiewicz, Meta (Science Applications International Corp. Beltsville, MD, United States)
Stajner, Ivanka (Science Applications International Corp. Beltsville, MD, United States)
Date Acquired
September 7, 2013
Publication Date
April 4, 2005
Subject Category
Geosciences (General)
Report/Patent Number
Rept- 2005-01264-0/VOL26/VER4
NASA/TM-2005?104606/ VOL26/VER4
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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