Title :
The use of ERS2 SAR for assessment of changes in dry herbaceous biomass
Author :
Sandholt, Inge ; Sørensen, Jacob Møller ; Rasmussen, Kjeld ; Ka, Alioune
Author_Institution :
Inst. of Geogr., Copenhagen Univ., Denmark
Abstract :
Changes and spatial pattern of dry herbaceous biomass was monitored using backscatter coefficients in a time series of ERS-2 SAR images of the semi-arid savanna in Senegal, West Africa. The results were compared to in situ measurements of dry biomass. It has been demonstrated, that the overall spatial and temporal change in SAR backscatter correspond to the changes in biomass, however, the quantitative relation remains to be established.
Keywords :
spaceborne radar; synthetic aperture radar; vegetation mapping; ERS-2 SAR; Ferlo; Senegal; West Africa; backscatter coefficients; dry herbaceous biomass changes; semi-arid savanna; spatial pattern; time series; tropical drylands; Africa; Agriculture; Backscatter; Biomass; Rough surfaces; Soil; Surface roughness; Surface topography; Turing machines; Vegetation mapping;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2002. IGARSS '02. 2002 IEEE International
Print_ISBN :
0-7803-7536-X
DOI :
10.1109/IGARSS.2002.1026427
