Publication Date:
2004-12-03
Description:
The relationship between the gradient of the interferometric phase and the terrain slope, which, it is thought, would allow a derivation of the terrain slopes without phase unwrapping, is presented. A linear relationship between the interferometric phase gradient and the terrain slopes was found. A quantitative error analysis showed that only very small errors are introduced by these approximations for orbital Synthetic Aperture Radar (SAR) geometries. An example of a slope map for repeat pass interferometry from ERS-1 SAR data is given. A number of direct and indirect applications of the terrain slope are indicated: erosion and avalanche hazard studies, radiometric calibration of SAR data, and normalization of the interferometric correlation coefficient.
Keywords:
EARTH RESOURCES AND REMOTE SENSING
Type:
ESA, Proceedings of 2nd ERS-1 Symposium on Space at the Service of Our Environment, Volume 2; p 711-715
Format:
text
