Daytime Neutral Winds in the Lower Thermosphere for March Equinox

Details Daytime Neutral Winds in the Lower Thermosphere for March Equinox Daytime Neutral Winds in the Lower Thermosphere for March Equinox

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sa61a01z&link_type=abstract

American Geophysical Union, Spring Meeting 2001, abstract #SA61A-01

Physics

3334 Middle Atmosphere Dynamics (0341, 0342), 3360 Remote Sensing, 3367 Theoretical Modeling, 3369 Thermospheric Dynamics (0358), 3384 Waves And Tides

Scientific paper

Daytime neutral winds in the lower thermosphere between 90 and 130 km from Incoherent Scatter Radars at Millstone Hill Observatory (42N, 288E) and Arecibo Observatory (18N, 293E) in March 1991, and from WINDII on UARS in March/April 1993 have similar wind structures in the local time domain. Both ground-based and space-based measurements show strong diurnal tides below 110 km and semi-diurnal tides above 110 km at 18N, and strong semi-diurnal tides at 42N. The results are also in good agreement with recent simulations from TIME-GCM. There are some discrepancies between ISR and WINDII measurements regarding the tidal amplitude and phase, partially, due to the different observation periods of the available data.

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