An Analytical and Numerical Study of the Martian Planetary Boundary Layer Over Slopes

Autor:	W. R. Wessel, P. J. Gierasch, S. L. Blumsack
Rok vydání:	1973
Předmět:	Martian Atmospheric Science Atmospheric models Log wind profile Planetary boundary layer Physics::Space Physics Momentum transfer Radiative transfer Astrophysics::Earth and Planetary Astrophysics Geophysics Boundary layer thickness Atmospheric temperature Geology
Zdroj:	Journal of the Atmospheric Sciences. 30:66-82
ISSN:	1520-0469 0022-4928
DOI:	10.1175/1520-0469(1973)030<0066:aaanso>2.0.co;2
Popis:	A one-dimensional model of the Martian planetary boundary layer over sloping terrain is analyzed under a variety of conditions. Analytical results for the steady and diurnal components of the temperature and wind fields are found when a Boussinesq model with a Newtonian cooling law is considered. These results form a basis for understanding the numerical results which include more realistic representations for the heating and parametrizations for the eddy transfer of momentum and heat. The diurnal boundary layer thickness is determined primarily by radiative processes, and the amplitudes of the wind and temperature oscillations are found to depend in an important way on the latitude and slope magnitude. Typically, oscillations in the temperature of plus or minus 15 K and in the upslope wind of plus or minus 25 m/sec are found 1 km above a Martian slope of 0.005.
Databáze:	OpenAIRE
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