NDLI: Monitoring of soil moisture and vegetation water content variations in boreal forest from C-band SAR data

Content Provider	IEEE Xplore Digital Library
Author	Pulliainen, J. Hari, P. Hallikainen, M. Patrikainen, N. Peramaki, M. Kolari, P.
Copyright Year	2004
Description	Author affiliation: Lab. of Space Technol., Helsinki Univ. of Technol., Espoo, Finland (Pulliainen, J.; Hari, P.; Hallikainen, M.; Patrikainen, N.)
Abstract	The response of ERS-2 SAR to changes in soil and forest canopy moisture is investigated at a boreal forest test region in Finland. An inversion approach to estimate moisture characteristics from SAR data is applied. The method requires that a priori information on forest biomass (stem volume) and soil type distribution is available. The inversion technique provides estimates that are here, in addition to backscattering signatures, directly compared with daily in situ moisture values. The results indicate that time-series of C-band radar observations can be used for the monitoring of boreal forest moisture variations. Especially, the detection of the driest and the wettest conditions on mineral soil sites appears to be a feasible application even for single channel radar. The obtained SAR-based soil moisture estimates showed an RMSE level of 6% units against the in situ data for pine-dominated mineral soil sites.
Starting Page	1013
Ending Page	1016
File Size	351689
Page Count	4
File Format	PDF
ISBN	0780387422
DOI	10.1109/IGARSS.2004.1368582
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	Monitoring Soil moisture Vegetation Minerals Backscatter Biomass Space technology Radar remote sensing Materials testing Snow
Content Type	Text
Resource Type	Article

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