Title :
Extraction of flooded areas in the 2011 Thailand flood from RADARSAT-2 and ThaiChote images
Author :
Nakmuenwai, Pisut ; Yamazaki, Fumio
Author_Institution :
Grad. Sch. of Eng., Chiba Univ., Chiba, Japan
Abstract :
This paper examines an extraction method of widespread flooded areas in the Chao Phraya River basin of the central Thailand during the 2011 monsoon season. RADARSAT-2 imagery data were mainly used to extract affected areas while ThaiChote imagery data were aslo used as optical supporting data by the Thai government. In this study, the same data were used by a somewhat different method in more detail. The extracted results were validated by GeoEye-1, a high-resolution optical satellite image, water height data from gaging stations and a digital surface model (DEM) from LiDAR.
Keywords :
digital elevation models; floods; hydrological techniques; object detection; radar imaging; remote sensing by radar; terrain mapping; AD 2011; Chao Phraya River basin; DEM; GeoEye-1; LiDAR; RADARSAT-2 imagery data; Thai government; ThaiChote imagery data; Thailand flood; central Thailand; digital surface model; flooded area extraction; gaging stations; high-resolution optical satellite image; monsoon season; optical supporting data; water height data; Backscatter; Educational institutions; Floods; Image color analysis; Optical imaging; Rivers; Satellites; 2011 Thailand flood; RADARSAT-2; SAR; THAICHOTE;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International
Conference_Location :
Quebec City, QC
DOI :
10.1109/IGARSS.2014.6947199
