Comparison of the disk-resolved lunar data with the modeling results. Top: radiance I of the lunar disk at 3.77µm measured on July 30, 2018, with the GF-4 satellite. Bottom: radiance of the lunar disk simulated with our model. The dashed lines indicate the horizontal sampling profiles 30_R1–30_R4 and the vertical sampling profiles 30_C1–30_C4. The subsolar point (gray circle) and the subcamera point (black circle) are given in Table 1.