Title :
P-band polarimetric model of vertical tree stems on sloping ground
Author :
Blomberg, E. ; Soja, M.J. ; Ulander, L.M.H.
Author_Institution :
Chalmers Univ. of Technol., Goteborg, Sweden
Abstract :
A fully polarimetric model is implemented to simulate backscatter from boreal forest. The aim is to correct for topography on a sub-stand level during the recovery of forest properties from P-band SAR data, specifically directed at the upcoming BIOMASS mission. The model incorporates the direct, double-bounce and triple-bounce scattering from tree stems on a sloping ground. Topography is introduced by assigning an independent and arbitrarily oriented local ground plane to each tree. Simulated SAR images are produced from in-situ measurements and a high resolution digital topography model (DTM) based on LiDAR data. These were obtained during BioSAR 2010 together with the corresponding SAR images, which are used for validation.
Keywords :
radar polarimetry; synthetic aperture radar; topography (Earth); vegetation; AD 2010; BIOMASS mission; BioSAR; DTM; LiDAR data; P-band SAR data; P-band polarimetric model; boreal forest backscatter simulation; direct scattering; double-bounce scattering; forest property recovery; fully polarimetric model; high resolution digital topography model; in-situ measurement; simulated SAR image; sloping ground vertical tree stem; sub-stand level topography correction; tree arbitrarily oriented local ground plane; tree independent oriented local ground plane; triple-bounce scattering; Backscatter; Biological system modeling; Biomass; Scattering; Surfaces; Synthetic aperture radar; Vegetation; Forestry; scattering; synthetic aperture radar (SAR);
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International
Conference_Location :
Quebec City, QC
DOI :
10.1109/IGARSS.2014.6946360
