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Responses of the upper middle atmosphere (60–110 km), to the first two stratwarms of map (1982/3, 1983/4)
Authors:A.H. Manson  C.E. Meek  K. Labitzke
Affiliation:1. Institute of Space and Atmospheric Studies, University of Saskatchewan, Saskatoon, Sask. S7N 0W0, Canada;7. Institute for Meteorology, Free University Berlin, 1000 Berlin 33, FRG
Abstract:The global developments of the stratospheric events (~20–50 km) are briefly described using balloon and satellite data. Winds data from L.F. drift (52°N, 15°E, Europe) for heights of 90–100 km, and from M.F. radar (52°N, 107°W, Canada) for heights of 60–110 km are then compared with the stratospheric morphology.Data for 1982/3 and 1983/4 show that the planetary wave activity and warmings produced strong westward and southward perturbations in the radar winds. Satellite data from 0.1, 0.01 hPa are consistent with these winds; and also show smaller scale structures in the mesosphere than the stratosphere. The semi-diurnal tide responded strongly to the atmospheric disturbances in Europe and Canada: for the latter vertical wavelength changes occurred for heights of 70–100 km. However the correlation between these tidal fluctuations was not high indicating that the tidal adjustments were continental rather than hemispheric.
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