Dr. Shuquan Zhao Profile

Dr. Shuquan Zhao

at Northeast Institute of Geography and Agroecology

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Proceedings Article | 23 August 2005 Paper

Integrating remote sensing (RS) and GIS for study of evolution and change of coastal line of Yellow River Delta

Shuquan Zhao, Yan He, Fengying Liang

Proceedings Volume 5885, 58850S (2005) https://doi.org/10.1117/12.610247

KEYWORDS: Remote sensing, Geographic information systems, Satellite imaging, Earth observing sensors, Satellites, Roads, Mouth, Image processing, Digital image processing, Geography

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The Yellow River is the second largest river in China, and is famous for its suspended riverbed, frequent shifts of its river routine and huge amount of sediments. The Yellow River Delta also has unique evolutionary features-its coastal line is either being rapidly silted or eroded. The high rates of sediments transport and deposit make the Yellow River mouth the only estuary in the world where new land is being created at a rate of more than 20km²/yr. At the same time, oceanic waves and currents are eroding the coastal line. By the intensive interaction of the river flow and the oceanic waves and currents, a series of evolutionary process of the coastal line such as silting forward, eroded back, raised riverbed and routine change of the Yellow River have been occurring since 1976 when the Yellow River changed its routine into the new Qingshuigou Routine. To protect the non-stable and vulnerable Delta and to manage its coastal line, the paper suggests that it is necessary and efficient to study the evolution and change of coastal line of the yellow river delta using integrating remote sensing (RS) and GIS. The authors interpreted and analyzed 20 maps of MSS and TM imagines pictured from 1976 to 1996 by GIS. The rate of silting and eroding of the coastal line are calculated, the evolutionary principles of the coastal line are determined, and eventually the evolutionary trends are predicted in the paper.

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