Fig. 1From: Effects of dust layers on thermal emission from airless bodiesLeft: Two-layer model of an irradiated surface consisting of competent bedrock covered by a thin dust layer. For the rock, a thermal inertia of 1183 J m−2 K−1 s−1/2 will be assumed, while the dust layer has a thermal inertia of 25 J m−2 K−1 s−1/2 (compare Table 1). Average dust thickness is δ. Right: same as left, but for a dust-covered porous rock or coarse regolith with thermal inertia 300 J m−2 K−1 s−1/2Back to article page