• 中文核心期刊
  • 中国科技核心期刊
  • ISSN 1007-6336
  • CN 21-1168/X

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Volume 34 Issue 1
Jan.  2015
Article Contents

Citation:

Analysis on the changes of continental coastline tortuosity in China recent 20 years

  • Received Date: 2013-07-23
    Accepted Date: 2014-08-21
  • Tortuous are the basic properties of the coastline, whichseriouslyaffect the natural marine environment and economic development. With the help of line dataset resampling function of the Supermap,we constructeda new calculation method of coastline tortuosity basing on Contour baseline. We extracted four basic data coastline from the year of 1990, 2000, 2007 and 2012 remote sensing images. Based on the results of coastlines tortuosity, by analysis of thetrends and variation characteristics nearly 20 years, we can obtain the following conclusions: it was an effective way to calculate coastline tortuosity by building contour baseline; continental coastline fluctuated trend, which can be divided intoascending, descending and fluctuations type; spatial distribution of Chinese continental coastline tortuosity have significant differences, on the whole northern tortuosity less than the South.
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通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Analysis on the changes of continental coastline tortuosity in China recent 20 years

  • 1. National Marine Environmental Monitoring Center, Dalian 116023, China;
  • 2. Key Laboratory of Sea Areas Management Technology SOA, Dalian 116023, China

Abstract: Tortuous are the basic properties of the coastline, whichseriouslyaffect the natural marine environment and economic development. With the help of line dataset resampling function of the Supermap,we constructeda new calculation method of coastline tortuosity basing on Contour baseline. We extracted four basic data coastline from the year of 1990, 2000, 2007 and 2012 remote sensing images. Based on the results of coastlines tortuosity, by analysis of thetrends and variation characteristics nearly 20 years, we can obtain the following conclusions: it was an effective way to calculate coastline tortuosity by building contour baseline; continental coastline fluctuated trend, which can be divided intoascending, descending and fluctuations type; spatial distribution of Chinese continental coastline tortuosity have significant differences, on the whole northern tortuosity less than the South.

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