The earth's thermospheric superrotation from Dynamics Explorer 2

Details The earth's thermospheric superrotation from Dynamics Explorer 2 The earth's thermospheric superrotation from Dynamics Explorer 2

May 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984georl..11..531w&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 11, May 1984, p. 531-533.

Physics

58

Atmospheric Circulation, Explorer 2 Satellite, Thermosphere, Wind Velocity Measurement, Diurnal Variations, Rotation

Scientific paper

Neutral thermospheric zonal winds measured from the Wind and Temperature Experiment on Dynamics Explorer 2 have been analyzed to provide a measure of the superrotation of the neutral thermosphere. The data were averaged in local time in 10 degree bands from the equator to 40 degrees latitude. The results show an average wind velocity on the order of 18 m/s to the East at the equator and a westward wind of the same magnitude at mid latitudes. Within the range of altitudes of the data base (200 to 700 km) no evidence of any significant altitude dependence was found. Averaging our data over the latitude bands studied indicates a net corotation of the thermosphere. This result is not in agreement with the superrotation value reported by King-Hele and Walker on the basis of satellite drag analysis.

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