Topographic correction for biomass retrieval from P-band SAR data in boreal forests

Author

Soja, Maciej J. ; Sandberg, Gustaf ; Ulander, Lars M H

Author_Institution

Chalmers Univ. of Technol., Gothenburg, Sweden

fYear

2010

fDate

25-30 July 2010

Firstpage

4776

Lastpage

4779

Abstract

The influence of the ground slope on radar backscatter has been proven to be greater for lower radar frequencies due to deeper canopy penetration. In this study, multiple heading, P-band SAR data of boreal forest in Sweden was used to find a model for topographic correction for improved biomass retrieval. Eleven models were tested and the best model was selected. The selected model was then used for biomass retrieval. Even by means of the most simplified approach, forest biomass could be established with a root-mean-square error of approximately 50 t/ha for HV and 66 t/ha for HH.

Keywords

synthetic aperture radar; topography (Earth); vegetation; P-band SAR data; Sweden; biomass retrieval; boreal forest; canopy penetration; forest biomass; ground slope; multiple heading; radar backscatter; radar frequencies; root-mean-square error; topographic correction; Backscatter; Biological system modeling; Biomass; Estimation; Mathematical model; Predictive models; Surfaces;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2010 IEEE International

Conference_Location

Honolulu, HI

ISSN

2153-6996

Print_ISBN

978-1-4244-9565-8

Electronic_ISBN

2153-6996

Type

conf

DOI

10.1109/IGARSS.2010.5653944

Filename

5653944