The spectral reflectance characteristics of cirrostratus, cirrus clouds, and a jet contrail, in the 0.68–2.4-µ spectral interval, are of interest for remote sensing of cloud types from orbiting satellites. Measurements made with a down-looking spectrometer from a high altitude aircraft show differences between the signatures of naturally formed ice clouds, a fresh jet contrail, and a snow covered surface.
W. A. Hovis, Jr., L R. Blaine, and M. L. Forman, "Infrared Reflectance of High Altitude Clouds," Appl. Opt. 9, 561-563 (1970)