DSpace at IIT Bombay >
IITB Publications >
Please use this identifier to cite or link to this item:
|Title: ||Estimation of soil-moisture and surface-roughness parameters from backscattering coefficient|
|Authors: ||RAO, KS|
|Issue Date: ||1993|
|Publisher: ||IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC|
|Citation: ||IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,31(5)1094-1099|
|Abstract: ||A statistical inversion technique was implemented to estimate soil moisture and surface roughness parameters from the remotely sensed multifrequency backscattering coefficients. Both two- and three-frequency approaches were examined and tested in detail for the inversion technique. Initially the technique was tested with a simulated data set generated from various scattering models. Later it was applied to an experimental data set that pro ided, for a w ide range of surface roughness and soil moisture, backscattering coefficients at many incidence angles and frequencies. It was found that, in general, the three-frequency approach produce more accurate results. However, under a favorable combination of frequencies and incidence angles, both approaches give results with a comparable accuracy. There is a potential that soil moisture could be estimated to an accuracy of about 2%. In the mean time the surface roughness parameters could be estimated to an accuracy of better than 10%.|
|Appears in Collections:||Note|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.