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Topographic Correction for Biomass Retrieval from P-band SAR Data in Boreal Forests

Maciej J. Soja (Institutionen för rymd- och geovetenskap, Radarfjärranalys) ; Gustaf Sandberg (Institutionen för rymd- och geovetenskap, Radarfjärranalys) ; Lars M. H. Ulander (Institutionen för rymd- och geovetenskap, Radarfjärranalys)
Proceedings of IGARSS 2010 Symposium, Remote Sensing: Global Vision for Local Action, Honolulu, Hawaii, USA, 25-30 July, 2010 p. 4776-4779. (2010)
[Konferensbidrag, övrigt]

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, Pband 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.

Nyckelord: Synthetic Aperture Radar, boreal forest, P-band, biomass, topography



Denna post skapades 2010-12-21. Senast ändrad 2016-05-24.
CPL Pubid: 131600

 

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