Physics – Space Physics
Scientific paper
Jan 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003jgra..108.1051z&link_type=abstract
Journal of Geophysical Research (Space Physics), Volume 108, Issue A1, pp. SIA 12-1, CiteID 1051, DOI 10.1029/2002JA009512
Physics
Space Physics
9
Meteorology And Atmospheric Dynamics: Mesospheric Dynamics, Meteorology And Atmospheric Dynamics: Middle Atmosphere Dynamics (0341, 0342), Meteorology And Atmospheric Dynamics: Theoretical Modeling, Meteorology And Atmospheric Dynamics: Remote Sensing
Scientific paper
Neutral winds in the lower thermosphere at altitudes of 94-130 km were measured in 1987-2000 by the ground-based incoherent scatter radar (ISR) at Millstone Hill (42.6°N, 288.5°E) and in 1992-1997 by the space-based Wind Imaging Interferometer (WINDII) on the Upper Atmosphere Research Satellite (UARS). The data from the ISR and WINDII have been separately grouped into four seasons. The daytime wind measurements from both instruments are found to be in good agreement, with similar structures and similar magnitudes. Winds from both instruments show an annual variation with a winter minimum. Winds in spring and summer are generally about a factor of two larger than those in fall and winter. The semidiurnal winds are dominant, but diurnal tides, mainly the in situ thermospheric diurnal tide, are comparable. The tidal characteristics and the background winds (the diurnal mean) derived from WINDII data show that the amplitude of the semidiurnal tide is generally 10 ms-1 larger than that of the in situ thermospheric diurnal tide, and the zonal and meridional background winds are less than 40 ms-1 and 15 ms-1 in all seasons, respectively. The TIME-GCM simulations of wind fields at 42.5°N for the March equinox and the December solstice are in reasonable agreement with the observations, but the comparisons for the June solstice are less satisfactory. More research needs to be done to understand the cause of disagreement at the June solstice and the September equinox and to properly model the tidal effects in the lower thermosphere during those periods.
Goncharenko Larisa P.
Roble Raymond G.
Salah Joseph E.
Shepherd Gordon G.
Zhang Shengpan P.
No associations
LandOfFree
Climatology of neutral winds in the lower thermosphere over Millstone Hill (42.6°N) observed from ground and from space does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Climatology of neutral winds in the lower thermosphere over Millstone Hill (42.6°N) observed from ground and from space, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Climatology of neutral winds in the lower thermosphere over Millstone Hill (42.6°N) observed from ground and from space will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1530756