HR: 0800h
AN: ED31B-1210    [Abstracts]
TI: Modeling Gravity Waves in the Stratosphere with a High-Resolution Forecast Model (ARPS)
AU: * Perkins, J R
EM: jrperkin@coastal.edu
AF: Department of Chemistry and Physics, Coastal Carolina University, Conway, SC 29526
AU: Limpasuvan, V
EM: var@coastal.edu
AF: Department of Chemistry and Physics, Coastal Carolina University, Conway, SC 29526
AU: Wu, D L
EM: dwu@mls.jpl.nasa.gov
AF: NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109
AU: Pawson, S
EM: pawson@gmao.gsfc.nasa.gov
AF: Global Modeling and Assimilation Office, NASA Goddard, Greenbelt, MD 20771
AU: Hu, M
EM: mhu@ou.edu
AF: Center for Analysis and Prediction of Storms, University of Oklahoma, Norman, OK 731019
AU: Xue, M
EM: mxue@ou.edu
AF: Center for Analysis and Prediction of Storms, University of Oklahoma, Norman, OK 731019
AB: A state-of-the-art forecast model, the Advanced Regional Prediction System (ARPS), is used to examine gravity wave generation, propagation, and effects on the stratospheric dynamics. Initialized with GEOS-4 data from NASA's Global Modeling and Assimilation Office, this regional model has been extended vertically up to 55 km and horizontally to cover nearly the entire hemisphere, running on NASA's Columbia cluster. With a 15-km (0.4 km) horizontal (vertical) resolution, 3-day forecast runs yield realistic tropospheric circulation and gravity waves features, which are comparable to those revealed by NASA AIRS and MLS observations. We illustrate the model performance and features with a strong gravity wave event in January 2004 over the North Atlantic.
DE: 3300 ATMOSPHERIC PROCESSES
DE: 3329 Mesoscale meteorology
DE: 3334 Middle atmosphere dynamics (0341, 0342)
DE: 3364 Synoptic-scale meteorology
SC: Education and Human Resources [ED]
MN: Fall Meeting 2005