The thermal inertia of the surface of Mars

摘要: ABSTRACT The thermal inertia of Mars is a physical property that controls the diurnal and seasonal cycles in surface temperature. It defined as function conductivity, heat capacity, density, all which depend primarily on structure layer. As such, provides information about nature types materials from it composed. Interpreting can be complicated by variety structures material properties result same value. In general, variations conductivity have greatest influence inertia. Factors such soil grain size, cementing or induration, rock abundance, presence bedrock, heterogeneity play an important role. processes effect are discussed to provide framework Martian may better understood. Over years, has been derived numerous Earth-based spacecraft temperature observations Mars. particular, Viking, Global Surveyor (MGS), Odyssey data mapped with increasing spatial resolution, each case providing improved understanding addition, local-scale Exploration Rovers (MERs) provided situ ground truth characteristic soils rocks. Overall, dominated depth few centimeters more.