Initial examination of radar imagery of optical radiometric calibration sites

Phil M. Teillet; Gunar Fedosejevs; D. Gauthier; Marc A. D'Iorio; B. Rivard; Paul Budkewitsch

doi:10.1117/12.228560

15 December 1995 Initial examination of radar imagery of optical radiometric calibration sites

Phil M. Teillet, Gunar Fedosejevs, D. Gauthier, Marc A. D'Iorio, B. Rivard, Paul Budkewitsch

Proceedings Volume 2583, Advanced and Next-Generation Satellites; (1995) https://doi.org/10.1117/12.228560
Event: Satellite Remote Sensing II, 1995, Paris, France

Abstract

In-flight absolute radiometric calibration is critical for multi-temporal and multi-sensor data comparisons. In the case of vicarious calibration of optical sensors based on ground-level measurements, the test site must be well characterized in spatial, radiometric, spectral, and temporal domains. Remotely sensed data acquired at other wavelengths can contribute to a baseline understanding of ground targets and provide insight into the usefulness of such targets for in-flight calibration of optical sensors. With these considerations in mind, multi-temporal ERS-1 SAR data have been obtained for White Sands, New Mexico, and Lunar Lake and Railroad Valley playas in Nevada. This paper reports on an initial examination of these SAR image data sets and the significant pattern changes observed in the scenes. It is concluded that surface roughness, soil moisture and run-off are major factors giving rise to the observed scene characteristics.

Citation Download Citation

Phil M. Teillet, Gunar Fedosejevs, D. Gauthier, Marc A. D'Iorio, B. Rivard, and Paul Budkewitsch "Initial examination of radar imagery of optical radiometric calibration sites", Proc. SPIE 2583, Advanced and Next-Generation Satellites, (15 December 1995); https://doi.org/10.1117/12.228560

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