Title :
Stem volume retrieval at stand level using multiple low-frequency SAR images
Author :
Folkesson, Klas ; Smith, Gary ; Ulander, Lars M H
Author_Institution :
Dept. of Radio & Space Sci., Chalmers Univ. of Technol., Goteborg, Sweden
Abstract :
In this paper the ground slope effect on stem volume retrieval from VHF-band SAR images has been studied using multiple co-registered images acquired from different flight headings. Accurate measurements of the topography were used as additional input data to a model of the backscatter amplitude variation with ground slope and aspect angle. Modeling this topographical effect on the radar backscatter provides a base for improvement of the stem volume retrieval.
Keywords :
forestry; remote sensing by radar; synthetic aperture radar; topography (Earth); vegetation mapping; VHF band; backscatter amplitude variation; ground slope; multiple coregistered images; multiple low frequency SAR images; radar backscatter; stem volume retrieval; synthetic aperture radar; topography; Backscatter; Frequency; Image retrieval; Light scattering; Optical scattering; Radar remote sensing; Radar scattering; Remote sensing; Surfaces; Volume measurement;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1294507
