Thermal microwave emission from half-space random media
Article first published online: 7 DEC 2012
Copyright 1976 by the American Geophysical Union.
Volume 11, Issue 7, pages 599–609, July 1976
How to Cite
1976), Thermal microwave emission from half-space random media, Radio Sci., 11(7), 599–609, doi:10.1029/RS011i007p00599., and (
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Received: 4 FEB 1976
Brightness temperatures resulting from microwave thermal emission from a half-space random medium are calculated. The random medium has a nonuniform temperature profile and is characterized by correlation functions that possess both vertical and lateral variations. Radiative transfer equations are derived. They are solved with an iterative integral equation approach for small scattering albedo and with a numerical approach for general cases. New results are illustrated, discussed, and compared with various special cases. Phenomena caused by resonant scattering, which is absent under Rayleigh approximations, are revealed. Scattering in the lateral direction contributes to the decrease of the equivalent reflectivity and the increase of the brightness temperature.