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Microwave emission from dry and wet snowA microscopic model was developed to study the microwave emission from snow. In this model, the individual snow particles are considered to be the scattering centers. Mie scattering theory for spherical particles is then used to compute the volume scattering and extinction coefficients of the closely packed scattering spheres, which are assumed not to interact coherently. The results of the computations show significant volume scattering effects in the microwave region which result in low observed emissivities from cold, dry snow. In the case of wet snow, the microwave emissivities are increased considerably, in agreement with earlier experimental observations in which the brightness temperatures have increased significantly at the onset of melting.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Chang, T. C.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Gloersen, P.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1975
Publication Information
Publication: Operational Appl. of Satellite Snowcover Observations
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
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