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Proceedings Paper

Some results from geocoding and calibration of ERS-1 SAR FD images in a mountainous area
Author(s): Harald Johnsen; Inge Lauknes; Tore Guneriussen
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Paper Abstract

An algorithm for geometric and radiometric correction of ERS-1 synthetic aperture radar images by using digital elevation model data is described and applied to images over a mountainous area in Norway. Several images covering the same area are corrected and geocoded into UTM map projection and the results are evaluated against map and in-situ measurements. The map to SAR geometric precision is given by a rms value of 54 m in the east and 45 m in the north. The SAR to SAR geometric precision is given by a rms value of 43 m in the east and 44 m in the north. Estimates of the radar backscatter coefficient are extracted from the geocoded SA backscatter images. Obtained values are for wet snow -13 dB and for dry snow -7 dB which agrees favorably with earlier radar measurements.

Paper Details

Date Published: 31 January 1995
PDF: 9 pages
Proc. SPIE 2314, Multispectral and Microwave Sensing of Forestry, Hydrology, and Natural Resources, (31 January 1995); doi: 10.1117/12.200737
Show Author Affiliations
Harald Johnsen, NORUT Information Technology Ltd. (Norway)
Inge Lauknes, NORUT Information Technology Ltd. (Norway)
Tore Guneriussen, NORUT Information Technology Ltd. (Norway)


Published in SPIE Proceedings Vol. 2314:
Multispectral and Microwave Sensing of Forestry, Hydrology, and Natural Resources
Eric Mougin; K. Jon Ranson; James Alan Smith, Editor(s)

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