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Thermospheric superrotation revisitedThe characteristics of thermospheric superrotation and accompanying latitudinal variations in temperature and composition are examined theoretically. Superrotation was measured by the Dynamics Explorer 2 satellite, which provided data for the atmospheric rotational velocity with respect to that of the planet for all seasons for 300-350 km altitudes. Zonally averaged circulation is described with momentum equations. A spectral model covers the superrotation, and account is taken of symmetric radiative and auroral components, asymmetric ion drag, an asymmetric pressure gradient and a viscous component. The horizontal wind field of the diurnal tide and diurnal variations in ion density which produce a momentum source are the largest contributors to superrotation at low and midlatitudes.
Document ID
19840058836
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Mayr, H. G. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Harris, I. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hedin, A. E. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Spencer, N. W. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Wharton, L. E. (NASA Goddard Space Flight Center Laboratory for Planetary Atmospheres, Greenbelt, MD, United States)
Date Acquired
August 12, 2013
Publication Date
July 1, 1984
Publication Information
Publication: Journal of Geophysical Research
Volume: 89
ISSN: 0148-0227
Subject Category
Geophysics
Report/Patent Number
ISSN: 0148-0227
Accession Number
84A41623
Distribution Limits
Public
Copyright
Other

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