A model study of the PBL structure on Mars and the earth

Details A model study of the PBL structure on Mars and the earth A model study of the PBL structure on Mars and the earth

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991conap..64..219s&link_type=abstract

Beitraege zur Physik der Atmosphaere (ISSN 0005-8173), vol. 64, Aug. 1991, p. 219-229.

Physics

1

Diurnal Variations, Mars Atmosphere, Mars Surface, Planetary Boundary Layer, Radiative Heat Transfer, Atmospheric Models, Atmospheric Temperature, Earth Atmosphere, Earth Radiation Budget, Mesoscale Phenomena

Scientific paper

The Martian boundary layer summertime diurnal cycle was simulated with a 1D model, and compared with Viking lander observations, and simulations on the earth. The Martian daytime surface layer was found to be strongly heated by longwave radiation, and the bulk of the PBL, by convection. The nighttime surface layer was cooled by turbulence above the radiatively cooled ground, and the bulk of the PBL, by radiation. Dust absorption of solar radiation, and gaseous longwave cooling, lead to a diurnal cycle of 4-5 K in temperature above the PBL. Winds show a well-mixed daytime structure and a low-level jet at night.

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