HR: 10:55h
AN: SA32A-03    [Abstracts]
TI: Vertical Structure of the Thermosphere and Ionosphere During Geomagnetic Storms in May 2002
AU: * Daniell, R E
EM: daniell@cpi.com
AF: Computational Physics, Inc., 8001 Braddock Road, Suite 210, Springfield, VA 22151-2110 United States
AU: Burns, A G
EM: aburns@ucar.edu
AF: NCAR, PO Box 3000, Boulder, CO 80307-3000 United States
AU: Strickland, D J
EM: dstrick@cpi.com
AF: Computational Physics, Inc., 8001 Braddock Road, Suite 210, Springfield, VA 22151-2110 United States
AU: Meier, R R
EM: robert.meier@nrl.navy.mil
AF: George Mason University, MS 5C3 4400 University Drive, Fairfax, VA 22030 United States
AU: Paxton, L J
EM: daniell@cpiboston.com
AF: JHU Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD 20723-6099 United States
AB: We will present an analysis of two geomagnetic storms that occurred during the month of May in 2002. Specifically we will concentrate on the storms that started on May 11 and May 23. These storms were selected precisely because they are not "great storms" but are presumably more typical of "run of the mill" storms so that the dynamics should be easier to understand. Using (1) images of O/N₂ derived from GUVI disk images of OI 135.6 nm and N₂ LBH dayglow, (2) limb profiles of O and N₂ derived from GUVI limb images of the same dayglow features, (3) ground based ionospheric soundings, and (4) TEC derived from dual frequency radar measurements on the Topex and Jason satellites, we will describe the evolution of the vertical structure of the thermosphere during the storm. We will use both the TING model of thermospheric dynamics and the open source version of the SAMI-2 ionospheric code (http://wwwppd.nrl.navy.mil/sami2-OSP/source-code-description/) to relate the observed thermospheric and ionospheric vertical structure before during and after the two storms. We will discuss the implications for storm-time thermospheric dynamics and thermospheric modeling.
DE: 0310 Airglow and aurora
DE: 0355 Thermosphere: composition and chemistry
DE: 2427 Ionosphere/atmosphere interactions (0335)
DE: 2441 Ionospheric storms (7949)
DE: 7949 Ionospheric storms (2441)
SC: SPA-Aeronomy [SA]
MN: Fall Meeting 2005