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Comparison of L- and P-band biomass retrievals based on backscatter from the BioSAR campaign

Gustaf Sandberg (Institutionen för radio- och rymdvetenskap, Radarfjärranalys) ; Lars M. H. Ulander (Institutionen för radio- och rymdvetenskap, Radarfjärranalys) ; J.E.S. Fransson ; Johan Holmgren ; Thuy Le Toan
Proceedings of IGARSS 2009 Symposium, Earth Observation – Origins to Applications, Cape Town, South Africa, 13-17 July, 2009 Vol. IV (2009), p. 169-172.
[Konferensbidrag, övrigt]

With the continued threat of global warming, the need to obtain consistent and accurate measurements of the carbon stored in forests is strong. L- and P-band SAR backscatter data have shown to be sensitive to forest biomass, which in turn is coupled to the stored carbon. In this paper a biomass retrieval method is developed for L- and P-band using data from the BioSAR campaign conducted in Sweden during thespring 2007 over hemi-boreal forest. The results show that the use of L-band data gives an underestimation of biomass for stands with high biomass; while for P-band no such underestimation is seen. RMSEs are found to be 30-40% of the mean biomass for L-band and about 25% for P-band for stands with biomass ranging from 10 to 290 tons/ha.



Denna post skapades 2010-01-18. Senast ändrad 2016-05-24.
CPL Pubid: 108732

 

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Institutioner (Chalmers)

Institutionen för radio- och rymdvetenskap, Radarfjärranalys (2005-2010)

Ämnesområden

Rymd- och flygteknik
Fjärranalys
Skogsuppskattning och skogsindelning

Chalmers infrastruktur