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Sensitivity of thermal tides in the Venus atmosphere to basic zonal flow and Newtonian cooling
Author(s) -
Takagi M.,
Matsuda Y.
Publication year - 2005
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 - 10.1029/2004gl022060
Subject(s) - atmosphere (unit) , venus , zonal flow (plasma) , atmosphere of venus , atmospheric sciences , geology , jet (fluid) , atmospheric tide , thermal , newtonian fluid , amplitude , lapse rate , environmental science , mechanics , geophysics , meteorology , physics , thermosphere , ionosphere , astrobiology , plasma , quantum mechanics , tokamak
A numerical model is constructed to investigate sensitivity of thermal tides in the Venus atmosphere to distributions of basic mean‐zonal wind and Newtonian cooling rate. It is found that the amplitude and spatial structure of the diurnal tide are strongly influenced by the midlatitudinal jets and the Newtonian cooling rates. In all cases examined in this study, the diurnal tide propagates downward in the lower atmosphere below the cloud levels, and reaches the ground. The semidiurnal tide is generally less dependent on these parameters, but its zonal winds are increased in the upper jet regions.