Thermal inertia, a parameter calculated from surface temperatures obtained from spacecraft, has long been used to quantify the amount of loose, fine-grained material on the Martian surface. With little ''ground truth'' available, studies often refer to Martian dune fields to calibrate thermal inertias. The well-understood physical properties of dune sand make it an ideal basis for comparison to more complex surfaces. However, higherresolution data sets available from the TES (Thermal Emission Spectrometer…
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