Title :
SAR for surface water monitoring and public health
Author :
Poncos, Valentin ; Molson, Stephen ; Welch, Andy ; Brazeau, Stephanie ; Kotchi, Serge Olivier
Abstract :
A specific double-bounce radar backscattering mechanism is used to measure water level changes in areas of wetland or inundated vegetation. The backscattered SAR signal from the water-vegetation double bounce mechanism is usually much stronger than the backscattered signal from the double bounce from dry surfaces. As an effect, the SAR amplitude from inundated vegetation is stronger than the one related to dry vegetation and the interferometric phase maintains coherence in time, making possible accurate phase measurements related to water level changes.
Keywords :
remote sensing by radar; synthetic aperture radar; vegetation; SAR amplitude; backscattered SAR signal; backscattered signal; dry vegetation; interferometric phase; inundated vegetation; public health; specific double-bounce radar backscattering mechanism; surface water monitoring; water level changes; water-vegetation double bounce mechanism; wetland areas; Rain; Soil; Soil measurements; Synthetic aperture radar; Temperature measurement; Vegetation mapping; Water resources; InSAR; water level change; wetlands;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International
Conference_Location :
Quebec City, QC
DOI :
10.1109/IGARSS.2014.6946638
