A boundary-layer model for Mars - Comparison with Viking lander and entry data

Details A boundary-layer model for Mars - Comparison with Viking lander and entry data A boundary-layer model for Mars - Comparison with Viking lander and entry data

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993jats...50.1544h&link_type=abstract

Journal of the Atmospheric Sciences (ISSN 0022-4928), vol. 50, no. 11, p. 1544-1559.

Computer Science

57

Atmospheric Boundary Layer, Atmospheric Entry, Mars Atmosphere, Viking Lander 1, Viking Lander 2, Wind Profiles, Comparison, Coriolis Effect, Heat Flux, Pressure Gradients, Mars, Boundaries, Layers, Model, Comparison, Spacecraft Observations, Viking Missions, Landers, Parameters, Turbulence, Flux, Temperature, Surface, Wind, Simulation, Atmosphere, Calculations, Dust, Loading, Diurnal Variations, Roughness, Optical Properties, Depth, Wavelength, Jets, Radiation Effects, Landing Sites, Momentum, Pressure Gra

Scientific paper

A 1D boundary-layer model of Mars based on a momentum equation that describes friction, pressure gradient, and Coriolis forces is presented. Frictional forces and convective heating are computed using the level-2 turbulence closure theory of Mellor and Yamada (1974). The model takes into account the radiative effects of CO2 gas and suspended dust particles. Both radiation and convection depend on surface temperatures which are computed from a surface heat budget. Model predictions are compared with available observations from Viking landers. It is concluded that, in general, the model reproduces the basic features of the temperature data. The agreement is particularly good at entry time for the V L-2 site, where the model and observations are within several degrees at all levels for which data are available.

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