Is albedo the key parameter that controls the seasonal south polar cap recession of Mars?

Details Is albedo the key parameter that controls the seasonal south polar cap recession of Mars? Is albedo the key parameter that controls the seasonal south polar cap recession of Mars?

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007epsc.conf..590s&link_type=abstract

European Planetary Science Congress 2007, Proceedings of a conference held 20-24 August, 2007 in Potsdam, Germany. Online at ht

Computer Science

Scientific paper

Introduction: Parts of the Martian atmosphere, which is mainly composed of CO2, are trapped during the winter at the surface near the pole in the form of CO2 frost. When the Sun light returns in the spring, the CO2 is heated up and sublimates. This major martian climatic cycle has been revealed be the pioneer work of Leighton and Murray [1]. Recent GCM modeling of seasonal frost including CO2 snow, are able to reproduce the Viking Lander 1 pressure measurement assuming a constant albedo value of seasonal caps [2]. Nevertheless, albedos observed by OMEGA [3] and by TES [4] are not constant in space and time. During the sublimation phase, different parameters are involved in temporal evolution of the seasonal cap recession: albedo, thermal emissivity, slopes and surface roughness, or thermal inertia of the ground.We will discuss here to which extent those factors control the Seasonal South Polar Cap (SSPC) recession.

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