Stem volume retrieval in boreal forests from ERS-1/2 interferometry
作者： Maurizio Santoro , Jan Askne , Gary Smith , Johan E.S Fransson
DOI: 10.1016/S0034-4257(01)00329-7
关键词:
摘要: C-band repeat-pass interferometry, in particular, the coherence, has been shown to be of great potential for stem volume retrieval. For boreal forests, we have investigated a retrieval method based on inversion ERS-1/2 coherence measurements by means semiempirical model. A multitemporal combination several estimates used order reduce errors estimation. The procedure was first applied forest estate located Kattbole, Sweden, where accurate situ were taken. Stem determined both at stand level (between 2 and 14 ha) pixel (25 � 25 m). data acquired stable winter-type conditions gave most results. Based results obtained extended large area 4235 km around Kattbole. Retrieval performed all forested areas basis m), generating maps. In level, up 350 m 3 /ha estimated with an error comparable ground truth, i.e. 10 /ha. At reached value 55 71 area, respectively. Compared from analysis, higher is believed mainly due uncertainty estimation high geometric mismatch between field data. Moreover, over areas, spatial variation parameters model should considered. D 2002 Elsevier Science Inc. All rights reserved.
harvard.edu
elsevier.com
sci-hub.se 参考文章(26)
J. Askne, G. Smith, Forest Insar Decorrelation and Classification Properties ERS SAR Interferometry. ,vol. 406, pp. 95- 103 ,(1997)
Patrik Dammert, Spaceborne SAR Interferometry: Theory and Applications Chalmers University of Technology. ,(1999)
Johan Swärd, Björn Hägglund, Bo Ranneby, Härje Jonasson, Thorbjörn Cruse, Designing a new national forest survey for Sweden Swedish University of Agricultural Sciences, Faculty of Forestry , Almqvist & Wiksell Periodical Co. [distributor]. ,(1987)
J. Askne, Gary Smith, Patrick B. G. Dammert, Interferometric SAR observations of forested areas Third ERS Symposium on Space at the service of our Environment. ,vol. 414, pp. 337- 344 ,(1997)
J. Askne, P.B.G. Dammert, G. Smith, Understanding ERS InSAR coherence of boreal forests international geoscience and remote sensing symposium. ,vol. 4, pp. 2111- 2114 ,(1999) , 10.1109/IGARSS.1999.775047
M. Schwabisch, D. Geudtner, Improvement of phase and coherence map quality using azimuth prefiltering: examples from ERS-1 and X-SAR international geoscience and remote sensing symposium. ,vol. 1, pp. 205- 207 ,(1995) , 10.1109/IGARSS.1995.519691
J.T. Pulliainen, K. Heiska, J. Hyyppa, M.T. Hallikainen, Backscattering properties of boreal forests at the C- and X-bands IEEE Transactions on Geoscience and Remote Sensing. ,vol. 32, pp. 1041- 1050 ,(1994) , 10.1109/36.312892
J. E. S. Fransson, G. Smith, J. Askne, H. Olsson, Stem volume estimation in boreal forests using ERS-1/2 coherence and SPOT XS optical data International Journal of Remote Sensing. ,vol. 22, pp. 2777- 2791 ,(2001) , 10.1080/01431160010006872
Gary Smith, Patrik B. Dammert, Jan Askne, Decorrelation mechanisms in C-band SAR interferometry over boreal forest Microwave Sensing and Synthetic Aperture Radar. ,vol. 2958, pp. 300- 310 ,(1996) , 10.1117/12.262703
Thierry Castel, Jean-Michel Martinez, André Beaudoin, Urs Wegmüller, Tazio Strozzi, ERS INSAR data for remote sensing hilly forested areas Remote Sensing of Environment. ,vol. 73, pp. 73- 86 ,(2000) , 10.1016/S0034-4257(00)00083-3