NDLI: Tight correlations between forest parameters and backscattering coefficient derived by the L-band airborne SAR (PiSAR)

Content Provider	IEEE Xplore Digital Library
Author	Watanabe, M. Shimada, M. Rosenqvist, A. Romshoo, S.A. Ohta, K. Tadono, T. Matsuoka, M. Furuta, R.
Copyright Year	2004
Description	Author affiliation: JAXA/EORC, Tokyo, Japan (Watanabe, M.; Shimada, M.; Rosenqvist, A.)
Abstract	We examined relationship between forest parameters and /spl sigma//sup 0/ derived by airborne multi-polarization SAR (PiSAR). PiSAR observations and field measurements were simultaneously performed on November 2002 and August 2003. One data set was taken from stands with pure pine (Picea glehnii Masters) forest. More than 70% of the trees in biomass are Picea glehnii Masters in the data set with same stand age. The other data set was taken from the stands where mixture of species is proceeding in some degree. The former data set shows more tight correlations compared to the other and correlation coefficient reaches 0.98. We conclude that (1) the mixture of the species and stand age are two of the major reasons of data scattering between forest parameters and /spl sigma//sup 0/, and (2) the above ground biomass saturation level is about /spl sim/150 tons/ha for L-band /spl sigma//sub HH//sup 0/ and /spl sigma//sub HV//sup 0/ and /spl sim/70 tons/ha for /spl sigma//sub VV//sup 0/ in this akaezomatsu site, using a biomass expansion factor of 1.36 to convert from the trunk biomass to the above-ground biomass.
Starting Page	2340
Ending Page	2343
File Size	486044
Page Count	4
File Format	PDF
ISBN	0780387422
DOI	10.1109/IGARSS.2004.1369755
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Backscatter L-band Biomass Performance evaluation Phased arrays Synthetic aperture radar Information retrieval Spaceborne radar Monitoring Area measurement
Content Type	Text
Resource Type	Article

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