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Preliminary results from the Pioneer Venus Orbiter infrared radiometer: Temperature and dynamics in the upper atmosphere
Author(s) -
Elson Lee S.
Publication year - 1979
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl006i009p00720
Subject(s) - venus , orbiter , atmosphere of venus , equator , atmosphere (unit) , radiometer , northern hemisphere , atmospheric sciences , context (archaeology) , infrared , southern hemisphere , environmental science , geology , astrobiology , physics , climatology , meteorology , remote sensing , astronomy , latitude , geodesy , paleontology
Data from the infrared radiometer aboard the Pioneer Venus Orbiter are examined and interpreted within the context of zonally averaged temperatures and circulation in the upper atmosphere of Venus. Surprisinglythe northern hemisphere pole is warmer than the equator throughout most of the region sampled. This implies both a rapid decrease with height of the 100 m/s cloud top winds previously observedand the probable existence of large (50 to 100 m/s) meridional winds.