DAO 1997

Global Modeling and Data Assimilation

This section presents a number of general discussions on scientific and computational aspects of Four Dimensional Data Assimilation (4DDA).

The first is a paper that was written for the PetaFlops Systems Workshops. This paper can also be downloaded as a compressed postscript file.

The second is the slides that I used for a general talk on 4DDA at the Workshop on Computational Challenges for Space and Earth Science at Jet Propulsion Laboratory, Pasadena, June 12 1996 (updated March 29, 1997).

To view a paper that describes the Kalman filter approach for constituent assimilation on isentropic surfaces, and shows how this is implemented on distributed memory computers using message-passing libraries see the following paper: P.M. Lyster, S.E. Cohn, R. Ménard, L.-P. Chang, S.-J. Lin, and R.G. Olsen: Parallel Implementation of a Kalman filter for Constituent Data Assimilation. accepted Mon. Wea. Rev.

Peter Lyster
Joint Center for Earth Systems Science
University of Maryland, College Park, Maryland

Richard B. Rood, Head
Data Assimilation Office
Goddard Space Flight Center
Greenbelt, Maryland

Goddard Space Flight Center
Greenbelt, Maryland 20771
April 1996