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A model relating VHF-band backscatter to stem volume of coniferous boreal forest
Chalmers Univ Technol, Dept Radio & Space Sci, S-41296 Gothenburg, Sweden Swedish Def Res Estab, FOA, Dept Surveillance Radar, Linkoping, Sweden.
Chalmers Univ Technol, Dept Radio & Space Sci, S-41296 Gothenburg, Sweden Swedish Def Res Estab, FOA, Dept Surveillance Radar, Linkoping, Sweden.
2000 (English)In: IEEE Transactions on Geoscience and Remote Sensing, ISSN 0196-2892, E-ISSN 1558-0644, Vol. 38, no 2, 728-740 p.Article in journal (Refereed) Published
Abstract [en]

A physical model is presented describing the backscatter from coniferous boreal forests in the lower VHF-band in terms of Stem volume. By using measurements of mean amplitude in high-resolution SAR images (rather than intensity), a linear dependence on stem volume can be obtained. The model fits well with the measurements made using the coherent all radio band sensing (CARABAS) SAR in the southern boreal forest, indicating the possibility of retrieving stem volume, and hence biomass, with an accuracy similar to that reached by standard ground-based measurements. No saturation of the scattering is seen up to biomasses of 550 m(3)/ha.

Place, publisher, year, edition, pages
2000. Vol. 38, no 2, 728-740 p.
Keyword [en]
CARABAS, forest biomass, parameter retrieval, SAR, scattering model, stem volume, VHF
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:liu:diva-49785OAI: oai:DiVA.org:liu-49785DiVA: diva2:270681
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-12

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