Accession Number : ADA198100

Title :   Measurements of the Thermospheric Meridional Wind from the S85-1 Spacecraft.

Descriptive Note : Technical rept.,

Corporate Author : AEROSPACE CORP EL SEGUNDO CA SPACE SCIENCES LAB

Personal Author(s) : Kayser, D C

PDF Url : ADA198100

Report Date : 20 Jun 1988

Pagination or Media Count : 34

Abstract : The Upper Atmosphere Composition Spectrometer (UACS) was flown on the Department of Defense Space Test Program mission S85-1. USACS was designed to measure neutral composition, temperature, and the in-track wind component in the lower thermosphere. In the high inclination orbit of S85-1, USACS measured the meridonal component of wind at all but the highest latitudes. While techniques to measure cross-track neutral wind have been successfully demonstrated by other investigators, in situ measurements of the in-track wind component have not been published before. USACS obtained a small but significant set of wind data for two days in July 1984 at altitudes between 200 and 235 km, at local solar times of 10.5 and 22.5 hours. The measured winds compare favorably with published results from ground-based incoherent-scatter radar and Fabry-Perot interferometer experiments as well as with satellite-based cross-track measurements of the meridonal wind. Keywords: Spectrometer, Wind measurements. (jhd)

Descriptors :   *THERMOSPHERE, *WIND, *WIND VELOCITY, ARTIFICIAL SATELLITES, FABRY PEROT INTERFEROMETERS, GROUND LEVEL, INCOHERENT SCATTERING, INTERFEROMETERS, LATITUDE, MEASUREMENT, METEOROLOGICAL DATA, NEUTRAL, RADAR SIGNALS, SPECTROMETERS, TEST AND EVALUATION, INCLINED ORBIT TRAJECTORIES, COMPARISON

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE