High Latitude Thermospheric Winds A Multi-Year Study

Details High Latitude Thermospheric Winds A Multi-Year Study High Latitude Thermospheric Winds A Multi-Year Study

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusmsa13a..03w&link_type=abstract

American Geophysical Union, Spring Meeting 2005, abstract #SA13A-03

Physics

0310 Airglow And Aurora, 2427 Ionosphere/Atmosphere Interactions (0335), 2431 Ionosphere/Magnetosphere Interactions (2736), 2776 Polar Cap Phenomena, 3369 Thermospheric Dynamics (0358)

Scientific paper

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.

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