MONITORING UNDERWATER TOPOGRAPHY BY SATELLITE REMOTE SENSING IN NANTONG SECTION OF YANGTZE RIVER

J. Huang

GISc Provincial Key Lab of Nanjing Normal University, Nanjing

huangjiazhu@njnu.edu.cn

A case study on underwater topography survey using remote sensing data was carried out in Nantong section of Yangtze River. The underwater shallow topography was drawn using Landsat TM data according to the established remote sensing water depth model. A dynamic monitoring on underwater sandbars was made using multi-temporal remote sensing information and the evolution of river process was also discussed.