Estimation of Forest Stem Volume using ALOS-2 PALSAR-2 Satellite Images
Paper i proceeding, 2016

© 2016 IEEE. A first evaluation of ALOS-2 PALSAR-2 data for forest stem volume estimation has been performed at a coniferous dominated test site in southern Sweden. Both the Fine Beam Dual (FBD) polarization and the Quad-polarimetric mode were investigated. Forest plots with stem volume reaching up to a maximum of about 620 m 3 ha -1 (corresponding to 370 tons ha -1 ) were analyzed by relating backscatter intensity to field data using an exponential model derived from the Water Cloud Model. The estimation accuracy of stem volume at plot level (0.5 ha) was calculated in terms of Root Mean Square Error (RMSE). For the best case investigated an RMSE of 39.8% was obtained using one of the FBD HV-polarized images. The corresponding RMSE for the FBD HH-polarized images was 43.9%. In the Quad-polarimetric mode the lowest RMSE at HV- and HH-polarization was found to be 43.1% and 66.1%, respectively.

Författare

Johan Fransson

Sveriges lantbruksuniversitet (SLU)

Maurizio Santoro

Gamma Remote Sensing

J. Wallerman

Sveriges lantbruksuniversitet (SLU)

Henrik Persson

Sveriges lantbruksuniversitet (SLU)

Leif Eriksson

Chalmers, Rymd- och geovetenskap, Radarfjärranalys

Mats Nilsson

Sveriges lantbruksuniversitet (SLU)

Albert Monteith

Chalmers, Rymd- och geovetenskap, Radarfjärranalys

Håkan Olsson

Sveriges lantbruksuniversitet (SLU)

Maciej Soja

Chalmers, Rymd- och geovetenskap, Radarfjärranalys

Lars Ulander

Chalmers, Rymd- och geovetenskap, Radarfjärranalys

Proceedings of 36th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2016; Beijing; China; 10-15 July 2016

Vol. 2016-November Art no 7730388, Pages 5327-5330 7730388

Ämneskategorier

Fjärranalysteknik

Naturresursteknik

DOI

10.1109/IGARSS.2016.7730388

ISBN

9781509033324