Computer Science
Scientific paper
Jul 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999ep%26s...51..701p&link_type=abstract
Earth, Planets and Space, Volume 51, p. 701-709.
Computer Science
4
Scientific paper
The seasonal variations of the zonal winds measured by meteor/MF radars and by the wind-imaging interferometer (WINDII) on board of the UARS satellite, are analyzed and compared with the ground-based Global Empirical Wind Model (GEWM) and satellite-based WINDII prevailing wind model, which are independently derived from the observational data sets. A general consistency in the main global scale wind structures is observed. The seasonal variations of zonal wind in the both models are described by almost the same annual and semi-annual components. But systematic bias is found for the annual mean zonal winds of the two models, with the GEWM winds generally smaller than those of WINDII by factor 2-2.5. This bias is practically independent of altitude and can be described by a term of Acos 4x, where A is about 20 m/s and xis colatitude. Possible origin of this offset is discussed.
Portnyagin Yu. I.
Solovjova T. V.
Wang Ding Yi
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