海洋科学2017，Vol.41Issue(2)：20-28,9.DOI:10.11759/hykx20160902001
近10年珠海海岸带海岸线时空变化遥感分析
Remote sensing analyses of the spatial and temporal changes in Zhuhai shoreline
摘要
Abstract
In this paper, a classification system for Zhuhai coastal shoreline was created to study the change in the coastal zones in Zhuhai based on high resolution remote sensing images obtained from the SPOT5, GF-1, and aerial DOM. The 3 phase information for 12 kinds of coastlines was extracted by human-computer interactions, and the length of the coastline and the erosion and deposition of the two aspects were analyzed in detail. The results were as follows: (1)The overall length of the coastline of Zhuhai city increased from 470.69 km to 496.95 km in 10 years, and the average annual growth was 2.38 km. (2)During the period of 2005—2015, the artificial shoreline had a lar-ger proportion, and it underwent continuous development in the recent 10 years. The length of artificial shoreline increased to 40.21 km, whereas the length of natural shoreline reduced to 13.95 km. (2)The erosion area of Zhuhai is 0.98 km2, and the deposition area is 34.75 km2 in these 10 years. The shorelines which expand to the sea are mainly in the port and construction areas. The length of the coastline including aquaculture ponds, gravel shorelines, and rock shorelines has decreased, and the migratory direction of these shorelines is mainly toward the inland. (4)The past 10 years have witnessed a severe change in the Gaolan Port. According to the fieldwork in the Gaolan Port, the port was constructed and expanded toward the sea in 2008.The expansion area reached 27.65 km2 by 2015, and the average ex-pansion rate was 3.4 km2/a. Port construction is the main expansion type in this area.Through the above analysis, it can be concluded that the coastline change of the coastal zone of Zhuhai in the recent is caused by coastal development.关键词
海岸线/珠海/高分影像/变迁分析/蚀淤分析Key words
shoreline/Zhuhai/high resolution images/change analysis/erosion and deposition analysis分类
海洋科学引用本文复制引用
杨雷,孙伟富,马毅,任广波..近10年珠海海岸带海岸线时空变化遥感分析[J].海洋科学,2017,41(2):20-28,9.基金项目
国家高分重大专项 （）
中央级公益性专项(2015T03) National Major Projects of High Resolution （2015T03）
Basic Scientific Fund for National Public Research Institutes of China, No. 2015T03 （）
