Analysis of space-borne SAR data for wetland mapping in Virginia riparian ecosystems
In this study the utility of NASA's Shuttle Imaging Radar-C (SIR-C) data are evaluated for wetland mapping and monitoring. The fully polarimetric L- and C-band data are used in hierarchical analysis and maximum likelihood classification techniques. Each map produced is compared with the Environmental Protection Agency's Multi Resolution Land Characteristics classification for pixelto-pixel accuracy assessment. Results show that both L- and C- band are necessary for detection of flooding beneath vegetated canopies. HH-polarization is found in this study and others to be better than VV for wetland discrimination. The cross-polarizations (HV or VH) are needed for discrimination of woody versus herbaceous vegetation.
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Document Type: Research Article
Affiliations: Environmental Research Institute of Michigan, PO Box 134001, Ann Arbor, MI 48113-4001, USA
Publication date: December 15, 2001