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The GEOS-5 Data Assimilation System-Documentation of Versions 5.0.1, 5.1.0, and 5.2.0This report documents the GEOS-5 global atmospheric model and data assimilation system (DAS), including the versions 5.0.1, 5.1.0, and 5.2.0, which have been implemented in products distributed for use by various NASA instrument team algorithms and ultimately for the Modem Era Retrospective analysis for Research and Applications (MERRA). The DAS is the integration of the GEOS-5 atmospheric model with the Gridpoint Statistical Interpolation (GSI) Analysis, a joint analysis system developed by the NOAA/National Centers for Environmental Prediction and the NASA/Global Modeling and Assimilation Office. The primary performance drivers for the GEOS DAS are temperature and moisture fields suitable for the EOS instrument teams, wind fields for the transport studies of the stratospheric and tropospheric chemistry communities, and climate-quality analyses to support studies of the hydrological cycle through MERRA. The GEOS-5 atmospheric model has been approved for open source release and is available from: http://opensource.gsfc.nasa.gov/projects/GEOS-5/GEOS-5.php.
Document ID
20120011955
Document Type
Technical Memorandum (TM)
Authors
Suarez, Max J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Rienecker, M. M. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Todling, R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Bacmeister, J. (University Corp. for Atmospheric Research Camp Springs, MD, United States)
Takacs, L. (Science Systems and Applications, Inc. Greenbelt, MD, United States)
Liu, H. C.
Gu, W. (Science Systems and Applications, Inc. Greenbelt, MD, United States)
Sienkiewicz, M. (Science Systems and Applications, Inc. Greenbelt, MD, United States)
Koster, R. D. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Gelaro, R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Stajner, I.
Nielsen, J. E. (Science Systems and Applications, Inc. Greenbelt, MD, United States)
Date Acquired
August 26, 2013
Publication Date
December 1, 2008
Subject Category
Earth Resources and Remote Sensing
Report/Patent Number
NASA/TM-2008-104606-VOL-27
GSFC.TM.01115.2012
Distribution Limits
Public
Copyright
Public Use Permitted.

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