Mapping of Wind-Thrown Forests Using VHF/UHF SAR Images

SAR images from the Swedish airborne CARABAS-II and LORA systems have been visually analyzed over simulated wind-thrown forest at both single tree and stand level. In ideal conditions, the results show that LORA is more accurate than CARABAS-II at detecting wind-thrown trees, regardless of tree size and direction of the fallen trees relative to flight heading. Furthermore, the visible single trees in the LORA images appeared more distinct than in the CARABAS-II images, which could be explained by the high resolution in the LORA images. Based on visual interpretation, it is likely that the detection of wind-thrown forests could be improved using VHF/UHF SAR images acquired both prior to and after a storm event.

Magnusson, M. (author)
Folkesson, Klas,1976Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)klasf (author)
Hallberg, Björn,1973Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)e5bjorn (author)
Sandberg, Gustaf,1982Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jansgust (author)
Smith Jonforsen, Gary,1972Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)smith2 (author)
Gustavsson, A. (author)
Ulander, Lars,1962Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)larula (author)
Chalmers tekniska högskola (creator_code:org_t)

In:IEEE 2007 International Geoscience and Remote Sensing Symposium (IGARSS 2007), Barcelona, Spain, July 23-27 2007DOI: 10.1109/IGARSS.2007.4423313, s. 2350-2353

By the author/editor: Fransson, J.E.S.; Magnusson, M.; Folkesson, Klas, ...; Hallberg, Björn, ...; Sandberg, Gustaf ...; Smith Jonforsen, ...; show more...; Gustavsson, A.; Ulander, Lars, 1 ...; show less...

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AGRICULTURAL SCIENCES: AGRICULTURAL SCI ...; and Agriculture Fore ...; and Agricultural Sci ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Environmental En ...; and Other Environmen ...

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