Effects of engineering construction on topography and geomorphology over the surrounding waters of Rudong Sunshine Island

Zhang Gang; Peng Xiuqiang; Zhang Xiaofei; Guo Na; Wan Kaichao; Liu Qiang

doi:10.3969/j.issn.0253-4193.2019.01.011

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Zhang Gang, Peng Xiuqiang, Zhang Xiaofei, Guo Na, Wan Kaichao, Liu Qiang. Effects of engineering construction on topography and geomorphology over the surrounding waters of Rudong Sunshine Island[J]. Haiyang Xuebao, 2019, 41(1): 108-120. doi: 10.3969/j.issn.0253-4193.2019.01.011

Citation:

Zhang Gang, Peng Xiuqiang, Zhang Xiaofei, Guo Na, Wan Kaichao, Liu Qiang. Effects of engineering construction on topography and geomorphology over the surrounding waters of Rudong Sunshine Island[J]. Haiyang Xuebao, 2019, 41(1): 108-120. doi: 10.3969/j.issn.0253-4193.2019.01.011

Citation:

Zhang Gang, Peng Xiuqiang, Zhang Xiaofei, Guo Na, Wan Kaichao, Liu Qiang. Effects of engineering construction on topography and geomorphology over the surrounding waters of Rudong Sunshine Island[J]. Haiyang Xuebao, 2019, 41(1): 108-120. doi: 10.3969/j.issn.0253-4193.2019.01.011

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Effects of engineering construction on topography and geomorphology over the surrounding waters of Rudong Sunshine Island

doi: 10.3969/j.issn.0253-4193.2019.01.011

East China Mineral Exploration and Development Bureau for Non-ferrous Metals, Institute of Geochemical Exploration and Marine Geological Survey, Nanjing 210007, China

Received Date: 2017-11-30
Rev Recd Date: 2018-03-19

Abstract

Abstract

The characteristics of erosion-deposition variation before and after the construction of Rudong Sunshine Island are analyzed from various aspects such as typical sections, isobaths and regional settings, based on the underwater topographic data and the fixed-point hydrological observation data in recent years, and 11 kinds of response relationship between engineering construction and environment of the Sunshine Island are established. In addition, the effects of engineering construction on topographic and geomorphological changes over the surrounding waters of the Sunshine Island are studied. Based on the response relationship, the cause of formation is discussed also. The result shows that the erosion-deposition state of local areas of tidal ridge and tidal channel has changed in some extent in five years before and after engineering, which may be due to the changes brought to the local hydrodynamic conditions by the engineering construction. It also dicoveries that the tidal ridge had some tendency to move southward, despite it hasn't changed the stability of Channel-sand System as a whole. In view of this, long-term monitoring and dynamic analysis of tidal sand ridges and tidal channels around Sunshine Island need to be strengthened.
- Sunshine Island,
- hydrological observation,
- erosion-deposition change,
- response relationship

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References(26)

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