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Mapping of Wind-Thrown Forests Using the VHF-Band CARABAS-II SAR

A severe storm struck the southern part of Sweden in early January 2005 and caused much damage on the forests. Most of the large contiguous patches of wind-thrown timber were cleared during the same year. Numerous of smaller areas with fallen trees located in otherwise untouched forest stands were, however, still present and in many cases not even yet noticed. In an attempt to detect and position such areas, the airborne VHF SAR sensor CARABAS-II mapped 125 km by 125 km of mainly forested land in January 2006. The mission required 15 flights in total and all collected data are now processed and analyzed, with the detection results delivered to the end-user.