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Remote Sensing of Earth TerrainTheoretical models that are useful and practical in relating remote sensing data to the important physical parameters characterizing Earth terrain are developed. The development of models that are useful in data analysis and interpretation, scene simulation, and developing new remote sensing approaches and techniques is discussed. Numerous theoretical models that are applicable to the active and passive remote sensing of plowed fields, atmospheric precipitation, vegetation, and snow fields were developed. The radiative transfer theory is used to interpret the active and passive data as a function of rain rate. Both the random medium model and the discrete scatterer model is used to study the remote sensing of vegetation fields. Due to the non-spherical geometry of the scatterers there is strong azimuthal dependence in the observed data. Thus, the anisotropic random medium model and the discrete scatterer model with nonspherical particles was developed. In order to relate the remote sensing data to the actual physical parameters, the scattering of electromagnetic waves from randomly distributed dielectric scatterers was studied. Both the rigorous random discrete scatterer theory and the strong fluctuation theory are used to derive the backscattering cross section in terms of the actual physical parameters and the results agree well with the data obtained from the snow fields.
Document ID
19840013870
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Kong, J. A.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Date Acquired
August 11, 2013
Publication Date
March 1, 1984
Publication Information
Publication: NASA Goddard Space Flight Center Fundamental Remote Sensing Sci. Res. Program, Part 1
Subject Category
Earth Resources And Remote Sensing
Accession Number
84N21938
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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