Title :
Monitoring Siberian forests and agriculture with the ERS-1 Windscatterometer
Author :
Schmullius, Christiane C.
Author_Institution :
German Aerosp. Res. Establ., Wessling, Germany
fDate :
9/1/1997 12:00:00 AM
Abstract :
ERS-1 Windscatterometer measurements over Siberia were investigated to determine the potential of coarse resolution radar data for land cover mapping and monitoring. Two indices have been introduced: the slope index calculates the incidence angle dependence of the radar measurements, the radar backscatter index (RBSI) combines slope index and radar backscatter intensity. Using the RBSI, good correlations to canopy density were found and the freeze/thaw-transition can be determined. Promising correspondence was found with five-day interval time series of normalized radar cross sections and crop yield estimates
Keywords :
agriculture; forestry; geophysical techniques; hydrological techniques; ice; radar cross-sections; remote sensing by radar; spaceborne radar; ERS-1 Windscatterometer; Russia; Siberia; Siberian forest; agriculture; canopy density; coarse resolution rada; crop yield; forestry; freeze thaw-transition; geophysical measurement technique; hydrology; ice; incidence angle dependence; land cover mapping; land surface; radar backscatter index; radar remote sensing; slope index; spaceborne radar; terrain mapping; vegetation mapping; Agriculture; Backscatter; Monitoring; Radar cross section; Radar measurements; Radar remote sensing; Radar scattering; Spaceborne radar; Temperature; Vegetation mapping;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
