Remote sensing analysis of spatio-temporal evolvement of estuarine tidal flat of Qiantangjiang River, China

摘要

The remote sensing method has many advantages such as large coverage, multi-temporal dynamic monitoring and historical monitoring backward. In this paper, remote sensing images from Landsat-5, Landsat-7 and CBERS-1 satellites are acquired for extracting shoreline, inning and tidal flat information. The characteristics of inning and inter-tidal flat are analyzed. Then, the spatio-temporal evolvement of inter-tidal flat under the influence of inning projects is presented. The work shows that the remote sensing technology is a valuable method for multi-temporal dynamic monitoring and historical backward monitoring for estuarine tidal flat, and that inter-tidal flat evolvement is influenced by inning projects mainly.