HR: 17:12h
AN: A44A-07    [Abstracts]
TI: The Impact of AIRS Data on Numerical Weather Predicition at NASA/GSFC
AU: * Atlas, R
EM: Robert.M.Atlas@nasa.gov
AF: Laboratory for Atmospheres, NASA Goddard Space Flight Center, Greenbelt, MD 20771 United States
AU: Brin, E
AF: SAIC, NASA Goddard Space Flight Center, Greenbelt, MD 20771 United States
AU: Terry, J
AF: SAIC, NASA Goddard Space Flight Center, Greenbelt, MD 20771 United States
AU: Jusem, J C
AF: SAIC, NASA Goddard Space Flight Center, Greenbelt, MD 20771 United States
AU: Joiner, J
AF: Laboratory for Atmospheres, NASA Goddard Space Flight Center, Greenbelt, MD 20771 United States
AU: Susskind, J
AF: Laboratory for Atmospheres, NASA Goddard Space Flight Center, Greenbelt, MD 20771 United States
AU: Ardizzone, J
AF: SAIC, NASA Goddard Space Flight Center, Greenbelt, MD 20771 United States
AU: Bungato, D
AF: SAIC, NASA Goddard Space Flight Center, Greenbelt, MD 20771 United States
AB: A series of data assimilation and forecast experiments are being performed as a component of the geophysical validation of AIRS data at NASA GSFC. These experiments are aimed at evaluating the impact of AIRS data in several forms: clear vs. partially cloudy data; AIRS Team physical retrievals; and AIRS radiances. Two different data assimilation systems are used for this purpose: FVDAS (or GEOS 4) which is the operational data assimilation system of the Global Modeling and Assimilation Office, and FVSSI which is a combination of the NASA global atmospheric model with the NOAA NCEP SSI analysis scheme. The results from these experiments show the overall utility of the different AIRS data sets and the ability of AIRS to represent atmospheric fields. The initial experiments show a positive impact of AIRS data on Southern Hemisphere analyses and forecasts with both data assimilation systems. In the Northern Hemisphere the impact is smaller but on occasion significant positive impacts occur.
DE: 3339 Ocean/atmosphere interactions (0312, 4504)
DE: 3374 Tropical meteorology
DE: 3300 METEOROLOGY AND ATMOSPHERIC DYNAMICS
DE: 1640 Remote sensing
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting