Has Sar Failed in Soil Moisture Retrieval?
نویسندگان
چکیده
The potential of Synthetic Aperture Radars (SARs) for measuring soil moisture has been recognised about 30 years ago, but still today the search for suitable sensors and widely applicable soil moisture retrieval algorithms is on-going. Because it is now important to find new directions in SAR soil moisture research, the current state of the art in SAR technology and methodological issues must be critically reviewed. Based on the discussion presented in this paper we come to the conclusion that in order to advance soil moisture retrieval at field scale, new field experiments with novel sensor technologies (3D radar, 3D lidar, polarimetry) are indispensable. For monitoring soil moisture dynamics at regional scales (~ 1km) the potential of ScanSAR change detection techniques should be investigated.
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تاریخ انتشار 2004