Research on monitoring coastline changes by remote sensing in muddy coast, central Jiangsu coast

Chen Weitong; Zhang Dong; Shi Shunjie; Zhou Jing; Kang Min

doi:10.3969/j.issn.0253-4193.2017.05.013

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Chen Weitong, Zhang Dong, Shi Shunjie, Zhou Jing, Kang Min. Research on monitoring coastline changes by remote sensing in muddy coast, central Jiangsu coast[J]. Haiyang Xuebao, 2017, 39(5): 138-148. doi: 10.3969/j.issn.0253-4193.2017.05.013

Citation:

Chen Weitong, Zhang Dong, Shi Shunjie, Zhou Jing, Kang Min. Research on monitoring coastline changes by remote sensing in muddy coast, central Jiangsu coast[J]. Haiyang Xuebao, 2017, 39(5): 138-148. doi: 10.3969/j.issn.0253-4193.2017.05.013

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Research on monitoring coastline changes by remote sensing in muddy coast, central Jiangsu coast

doi: 10.3969/j.issn.0253-4193.2017.05.013

1.
Department of Geography, Nanjing Normal University, Nanjing 210023, China
2.
Department of Geography, Nanjing Normal University, Nanjing 210023, China;Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China

Received Date: 2016-07-28
Rev Recd Date: 2016-12-06

Abstract

Abstract

Monitoring coastline changes is the basis of understanding the change of coastal erosion and deposition. Considering the gentle slope of muddy tidal flat and the influence of tide, this paper improves the ‘Water-Line’ method by valuing discrete points of waterlines based on multiple tide monitoring stations and calculating average slope of tidal flat. The results were tested by measured slope of tidal flat. The study chose Biandan River Estuary to Chuandong Harbor coast, frequent change of erosion and deposition and high retention rate of the natural shoreline, to monitoring remote sensing coastline changes. Results showed that, slope of study area is between 0.001 to 0.002 and the intertidal zone is becoming wider from north to south. Biandan River Estuary to Sheyang River Estuary coast is in the eroding environment. A mass of artificial shoreline mainly composed of pond cofferdams are continuously eroded backwards to the sea; Sheyang River Estuary to Simaoyou River Estuary coast is mainly in the change under natural state. The average eroding rate of this area is less than 10 m/a, which is little; Simaoyou River Estuary to Chuandong Harbor coast is in the depositional environment. And the artificial shoreline in this area continuously advances to the sea because of reclamations. According to the results, this paper argues that Xinyang Harbor to Doulong Harbor coast should be the transition zone of study area from northern erosion to southern deposition.
- muddy tidal flat,
- remote sensing,
- tide,
- slope of tidal flat,
- erosion and deposition,
- coastline

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References(32)

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