Some Features of the Climatology of the Northern Hemisphere Stratosphere Revealed by NMC Upper Atmosphere Analyses

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Abstract
A zonal-mean climatology of the temperature, geostrophic zonal winds and the beat and momentum transports associated with the geostrophic winds has been constructed on the basis of almost four years of routine weekly analyses from the National Meteorological Center (NMC). The region considered extends from 10 to 85°N and from 100 to 0.4 mb. The complete set of tables describing this climatology is available in an NCAR technical report (Hamilton, 1982). In the present paper the rationale for using the NMC analyses is given and a few of the highlights of the results are displayed.