HR: 1330h
AN: SA13A-03    [Abstracts]
TI: High Latitude Thermospheric Winds A Multi-Year Study
AU: * Wu, Q
EM: qwu@ucar.edu
AF: NCAR/HAO, P.O.Box 3000, Boulder, Co 80307-3000 United States
AU: Killeen, T L
EM: killeen@ucar.edu
AF: NCAR/HAO, P.O.Box 3000, Boulder, Co 80307-3000 United States
AU: Solomon, S C
EM: stans@ucar.edu
AF: NCAR/HAO, P.O.Box 3000, Boulder, Co 80307-3000 United States
AU: Niciejewski, R J
EM: niciejew@engin.umich.edu
AF: SPRL/AOSS, The University of Michigan, 2455 Hayward St., Ann Arbor, Mi 48109-2143 United States
AB: Based on multi-year Fabry-Perot interferometer O 6300 A emission thermosphere neutral wind observations from high latitude stations: Thule (76.4 N) and Resolute (74.9 N), we examine the long-term inter-annual variations of the thermosphere neutral winds in the northern high latitude region. We have noticed that thermosphere neutral winds tend to flow anti-sunward, which is consistent with earlier observations. However, the magnitude of the neutral winds varies from year to year. Solar, IMF, and geomagnetic activities are believed to be the contributing factors. We will compare the neutral wind data from Thule of 1987/88 and 1988/89 to Resolute data from 2003/04 and 2004/05. Strong amplitude of neutral winds was observed at Thule during the 1987/88 winter season, so far the neutral winds observed at Resolute have been smaller in general. Comparisons with model and further analysis are planned.
DE: 0310 Airglow and aurora
DE: 2427 Ionosphere/atmosphere interactions (0335)
DE: 2431 Ionosphere/magnetosphere interactions (2736)
DE: 2776 Polar cap phenomena
DE: 3369 Thermospheric dynamics (0358)
SC: SPA-Aeronomy [SA]
MN: 2005 Joint Assembly