Subdivisions of sedimentary dynamic environment based on FCM in the Yellow River subaqueous delta

Liu Fucheng; Chen Shenliang; Peng Jun; Chen Qing

doi:10.3969/j.issn.0253-4193.2016.09.009

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Liu Fucheng, Chen Shenliang, Peng Jun, Chen Qing. Subdivisions of sedimentary dynamic environment based on FCM in the Yellow River subaqueous delta[J]. Haiyang Xuebao, 2016, 38(9): 89-99. doi: 10.3969/j.issn.0253-4193.2016.09.009

Citation:

Liu Fucheng, Chen Shenliang, Peng Jun, Chen Qing. Subdivisions of sedimentary dynamic environment based on FCM in the Yellow River subaqueous delta[J]. Haiyang Xuebao, 2016, 38(9): 89-99. doi: 10.3969/j.issn.0253-4193.2016.09.009

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Subdivisions of sedimentary dynamic environment based on FCM in the Yellow River subaqueous delta

doi: 10.3969/j.issn.0253-4193.2016.09.009

1.
School of Geodesy and Geomatics Engineering, Huaihai Institute of Technology, Lianyungang 222005, China;State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China
2.
State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China
3.
School of Urban and Resources Environment, Yancheng Teachers University, Yancheng 224002, China

Received Date: 2015-11-13
Rev Recd Date: 2016-04-02

Abstract

Abstract

Reasonably and quantitatively determining subdivisions of sedimentary dynamic environment is an important basis of understanding regional sedimentary dynamic processes. Based on the grain distribution data of the surface sediment samples, the sedimentary dynamic environment in the Yellow River subaqueous delta area has been classified, identified and represented by the methods of fuzzy c-means clustering (FCM), triangle illustration and kriging. The results show that the sedimentary dynamic environment of the study area can been classified into 3 categories and they indicate the dynamic sedimentary environments of scour, deposition and mixing of scour and deposition, respectively. And the membership degree maps of the three categories of sedimentary dynamic environments have a function of indicating the occurance probabilities of the different environments at certain places and also can show their dominant areas. Meanwhile the sedimentary dynamic environment map, generated from the fuzzy membership degree values of the surface sediments, is highly identical with the spatial distribution pattern of the sedimentary dynamics in the study area, which means the mapping results are reasonable and effective. The study results have some reference values for the geomorphic evolution trend analysis and coastal protection work in the area of the Yellow River Delta.
- grain size,
- sedimentary dynamic environment,
- fuzzy c-means clustering,
- FCM,
- subdivision,
- Yellow River subaqueous delta

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References(32)

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