File:Fog and Snow in Asia (MODIS 2021-01-30).jpg

English: On January 27, 2021, the Moderate Resolution Imaging Spectroradiometer (MODIS) on board NASA’s Aqua satellite acquired a beautiful false color image of a clear winter's day in northeastern Pakistan and northwestern India. While true-color images show the landscape as seen with the human eye, false-color images use data collected by different MODIS bands to enhance features that would be difficult to see in true-color. In this case, infrared and visible light (MODIS bands 7,2,1) are used to highlight vegetation and separate snow from cloud. In true-color images, both snow and cloud appear bright white but, in this scene, cold snow atop the Himalaya Mountains appears electric blue while low cloud (fog) cradled in the mountain valley and at the base of the Himalayas remains white. Vegetation looks bright green and non-vegetated land appears as various shades of tan, with rugged or rocky landscape darker than flatter fields. Man-made structures, such as cities and large roadways, are easily visible as dark marks in the otherwise unbroken vegetation in India.