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Mechanisms of the diurnal cycle in the atmospheric boundary layer of Mars

Potential temperature profiles derived from the NASA Mars rover Spirit's miniature thermal emission spectrometer scans of the atmosphere were used as a validation for boundary‐layer (BL) simulations on a dusty and a dustless solar day (sol), and the 1D model's heating rates were studied to clarify the mechanisms which drive the observed diurnal variation. The optical properties of dust were first charted by Mie calculations, the single‐scattering albedo and asymmetry parameter being fairly insensitive to the dust size distribution.