NDLI: Application of ERS-1 wind scatterometer data to soil frost and soil moisture monitoring in boreal forest zone

Content Provider	IEEE Xplore Digital Library
Author	Pulliainen, J.T. Manninen, T. Hallikainen, M.T.
Copyright Year	1980
Abstract	The feasibility of the ERS-1 Wind Scatterometer (WS) for monitoring the boreal forest zone is investigated, concentrating on soil frost and soil moisture monitoring. The ERS-1 WS measures the target area with coarse spatial resolution (about 50 km) using three separate antenna beams and a wide angular range. The investigations are concerned with the boreal forest zone using data (1) from test areas located in Finland and (2) covering the whole northern European boreal forest zone. The seasonal behavior of WS data is studied and a semiempirical forest backscattering model-based inversion method for the retrieval of soil moisture and for soil frost monitoring from WS data is developed. The developed inversion method employs nearly simultaneous three-beam measurements and a varying incidence angle. Promising results were obtained in the monitoring of soil frost, and the retrieval of soil moisture also appears to be a feasible field of application. The applicability of the instrument for forest biomass retrieval using single images was found to be limited to long-term change detection.
Sponsorship	IEEE Geoscience and Remote Sensing Society IEEE URSI
Starting Page	849
Ending Page	863
Page Count	15
File Size	339660
File Format	PDF
ISSN	01962892
Volume Number	36
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radar measurements Monitoring Soil moisture Soil measurements Antenna measurements Area measurement Spatial resolution Testing Backscatter Information retrieval
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Electrical and Electronic Engineering

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