Spatial resolution is 1.1 kilometer. Red is reflectance in middle infrared channel 3, green is reflectance in near infrared channel 2, and blue is reflectance in visible red channel 1. Because clouds are highly reflective in all three channels, they appear white or pinkish.
Snow is reflective only in the visible and near infrared, and so is cyan.
High vegetation reflectance in the near infrared only accounts for greenish areas, while dry soils of the Mojave desert are reddish-tan because of low channel 1 and high channel 3 reflectance. Water is highly absorptive in all 3 channels, and therefore appears black. On the right is the subresolution snow cover map produced by an unsupervised spectral unmixing program. Clouds were masked before running the program. The shade of gray proportional to the subpixel snow fraction.