Abstract During the last decade a large number of radars (∼12) have been developed, which have produced substantial quantities of tidally-corrected mean winds data. The distribution of the radars is not global, but many areas are well covered: the Americas with Poker Flat (65°N), Saskatoon (52°N), Durham (43°N), Atlanta (34°N), Puerto Rico (18°N); Europe with Kiruna (68°), Garchy (47°N) and Monpazier (44°N); and Oceania with Christchurch (44°S), Adelaide (35°S), Townsville (20°S), and Kyoto (35°N). Zonal and meridional wind height-time cross-sections from km (MF/Meteor Radar) to ∼110 km have been prepared for the last 5–6 years. They are compared with cross-sections from CIRA-72 for zonal winds, and Groves (1969) for meridional winds. It is shown that while CIRA-72 is still a useful model for many purposes, significant differences exist between it and the new radar data. The latter demonstrate important seasonal, latitudinal, longitudinal and hemispheric variations. The new meridional cross-sections are of great value. The common features with Groves (1969) are the equatorward cells in summer near 85 km; however their strength (∼10 ms−1) and size are less. Systematic and somewhat different variations emerge at higher (⩾52°N) and middle (35–44°) latitudes.
Mean winds of the mesosphere and lower thermosphere (60–110 km): A global distribution from radar systems (MF, Meteor, VHF)
Advances in Space Research ; 5 , 7 ; 135-144
01.01.1985
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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