Regarding the area near the Yangtze River mouth as the demonstration region, this paper briefly introduces the algorithm for the extracting information of the sediment concentration, the main function of the extracting sediment concentration system and some pieces of key technology. Now the system has been trial running, and we get more accurate result, it gives a technique guarantee for the using of HY-1A data.
The coast is a zone where frequent mankind activities and frail ecology environment coexist. The coastal erosion and accretion caused by the interactions between sea and land have great influence on the coast development. The problems concerned by the coastal engineering are the stability and change trend of shoreline and beach. In this paper, the authors, through some case studies and research achievements of coastal projects, further expound the functions and application prospects of remote sensing in the decision-making of coastal engineering, such as estuarine regulation, construction of the harbor and navigation channel, beach reclamation, and site selection of the sewage outfall in the power station and city, etc.
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