Snow/cloud discrimination /
Francis R. Valovcin.

Description

Main Author

Valovcin, Francis R.

Related Names

U.S. Air Force Geophysics Laboratory.

Language(s)

English

Published

Hanscom AFB, Massachusetts : Air Force Geophysics Laboratories, Air Force Systems Command, United States Air Force, 1976.

Subjects

Snow.
Remote sensing.
Meteorological satellites.
Clouds.
Remote sensing.
Meteorological satellites > Meteorological satellites / Observations.
Clouds.
Snow.
Observations.

Summary

The main objective of this investigation was to evaluate the usefulness of the data from the S192 Multispectral Scanner aboard Skylab in snow-cloud discrimination. From the available S192 screening films and digital tape data, the reflectance characteristics of snow, ice, and water clouds in different spectral bands from the visible into the near infrared spectral region can be determined. In the visible part of the spectrum, snow, ice, and water clouds appear white. In the near infrared, Band 11 (1.55 to 1.75 micrometers), water clouds are white, ice clouds are gray and snow is black. The ratio of the radiance values in Band 6 (0.68 to 0.76 micrometers to Band 11 (1.55 to 1.75 micrometers appears to provide a method for discriminating between snow cover, ice, and water clouds. (Author).

Note

Research supported by the Air Force Geophysics Laboratory, Air Force Systems Command, United States Air Force, Hanscom AFB, Massachusetts.
Meteorology Division Project 6698.
ADA032385 (from http://www.dtic.mil).
"4 August 1976."

Physical Description

16 pages : illustrations ; 28 cm.

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