In order to further investigate and analyze the recent dynamic evolution of Pearl River delta coastline,the authors used multi-satellite and multi-temporal remote sensing images,such as TM,ETM and ALOS,as the data source to extract the coastline. After geometric correction and image registration,all images had the same coordinate system. According to the different features and interpretational keys of the coastlines,the authors conducted naked eye interpretation and computer automatic extraction to extract all kinds of coastlines in 1998,2003 and 2008, with the coastline extraction accuracy higher than 80%. With the help of the overlap and statistical tools in GIS,the authors also analyzed the recent evolution characteristics,trends and causes of Pearl River delta coastlines. The results show that the total length of Pearl River delta coastline changed insignificantly from 1998 to 2003,but increased remarkably from 2003 to 2008,mainly because of the artificial coastline increase. The artificial coastline possesses the highest proportion (more than 50% ),followed by rocky coastline,estuary coastline,sandy and gravel coastline,and mangrove coastline has the lowest proportion. Pearl River delta coastline mainly extends to the sea,and the main factors seem to be coastal engineering construction,beach reclamation,land reclamation and artificial breeding,with artificial reclamation being the main driving factor of the coastline changes.
[1] 常军,刘高焕,刘庆生.黄河三角洲海岸线遥感动态监测[J].地球信息科学,2004,6(1):94-98. Chang J,Liu G H,Liu Q S.Dynamic monitoring of coastline in the Yellow River delta by remote sensing[J].Geo-information Science,2004,6(1):94-98.[2] Frihy O E,Nasr S M,Hattab M M E,et al.Remote sensing of beach erosion along the Rosetta Promontary,northwestern Nile delta,Egypt[J].International Journal of Remote Sensing,1994,15(8):1649-1660.[3] Chen L C,Rau J Y.Detection of shoreline changes for tideland areas using multi-temporal satellite images[J].International Journal of Remote Sensing,1998,19(17):3383-3397.[4] 樊彦国,张淑芹,侯春玲,等.基于遥感影像提取海岸线方法的研究——以黄河三角洲地区黄河口段和刁口段海岸为例[J].遥感信息,2009(4):67-70,74. Fan Y G,Zhang S Q,Hou C L,et al.Study on method of coastline extraction from remote sensing:Taking Yellow River mouth reach and Diaokou reach of Yellow River delta area as an example[J].Remote Sensing Information,2009(4):67-70,74.[5] 朱小鸽.珠江口海岸线变化的遥感监测[J].海洋环境科学,2002,21(2):19-22,80. Zhu X G.Remote sensing monitoring of coastline changes in Pearl River estuary[J].Marine Environmental Science,2002,21(2):19-22,80.[6] 李学杰.应用遥感方法分析珠江口伶仃洋的海岸线变迁及其环境效应[J].地质通报,2007,26(2):215-222. Li X J.Application of the remote sensing method in the analysis of the shoreline change and its environmental impact in the Lingdingyang bay,Pearl River estuary,Guangdong,China[J].Geological Bulletin of China,2007,26(2):215-222.[7] 于杰,杜飞雁,陈国宝,等.基于遥感技术的大亚湾海岸线的变迁研究[J].遥感技术与应用,2009,24(4):512-516. Yu J,Du F Y,Chen G B,et al.Research on coastline change of Daya Bay using remote sensing technology[J].Remote Sensing Technology and Application,2009,24(4):512-516.[8] 李猷,王仰麟,彭建,等.深圳市1978年至2005年海岸线的动态演变分析[J].资源科学,2009,31(5):875-883. Li Y,Wang Y L,Peng J,et al.Research on dynamic changes of coastline in Shenzhen City based on Landsat image[J].Resources Science,2009,31(5):875-883.[9] 赵玉灵.珠江口地区近30年海岸线与红树林湿地遥感动态监测[J].国土资源遥感,2010,22(s1):178-184. Zhao Y L.The remote sensing dynamic monitoring of the evolution of shoreline and mangrove wetlands in the Zhujiang River estuary in the past 30 years[J].Remote Sensing for Land and Resources,2010,22(s1):178-184.[10] 申家双,翟京生,郭海涛.海岸线提取技术研究[J].海洋测绘,2009,29(6):74-77. Shen J S,Zhai J S,Guo H T.Study on coastline extraction technology[J].Hydrographic Surveying and Charting,2009,29(6):74-77.[11] 马小峰,赵冬至,邢小罡,等.海岸线卫星遥感提取方法研究[J].海洋环境科学,2007,26(2):185-189. Ma X F,Zhao D Z, Xing X G,et al.Means of withdrawing coastline by remote sensing[J].Marine Environmental Science,2007,26(2):185-189.[12] 王李娟,牛铮,赵德刚,等.基于ETM遥感影像的海岸线提取与验证研究[J].遥感技术与应用,2010,25(2):235-239. Wang L J,Niu Z,Zhao D G,et al.The study of coastline extraction and validation using ETM remote sensing image[J].Remote Sensing Technology and Application,2010,25(2):235-239.[13] 马小峰,赵冬至,张丰收,等.海岸线卫星遥感提取方法研究进展[J].遥感技术与应用,2007,22(4):575-580. Ma X F,Zhao D Z,Zhang F S,et al.An overview of means of withdrawing coastline by remote sensing[J].Remote Sensing Technology and Application,2007,22(4):575-580.[14] 黄鹄,胡自宁,陈新庚,等.基于遥感和GIS相结合的广西海岸线时空变化特征分析[J].热带海洋学报,2006,25(1):66-70. Huang H, Hu Z N, Chen X G,et al.Analyses on spatial and temporal changes of Guangxi shoreline based on remote sensing and GIS[J].Journal of Tropical Oceanography,2006,25(1):66-70.[15] 夏真,马胜中,梁开,等.珠江口伶仃洋海底沉积[J].海洋地质与第四纪地质,2008,28(2):7-13. Xia Z,Ma S Z,Liang K,et al.The characteristics analysis of sea bottom deposit in Lingdingyang Bay of the Pearl River estuary[J].Marine Geology & Quaternary Geology,2008,28(2):7-13.[16] 朱俊凤,李文胜,王耿明.珠江口水深遥感反演研究[J].海洋地质前沿,2012,28(3):52-59. Zhu J F, Li W S,Wang G M.Using remote sensing to define water depth in the Pearl River estuary[J].Marine Geology Frontiers,2012,28(3):52-59.[17] 姚才华,吴自银.30a来伶仃洋海岸线变迁及海底冲淤变化[J].海洋学研究,2012,30(3):44-55. Yao C H,Wu Z Y.Shoreline migration and scour-and-silting alternation in the Lingdingyang estuary over past 30 years[J].Journal of Marine Sciences,2012,30(3):44-55.[18] 冯永玖,韩震.海岸线遥感信息提取的元胞自动机方法及其应用[J].中国图象图形学报,2012,17(3):441-446. Feng Y J,Han Z.Cellular automata approach to extract shoreline from remote sensing imageries and its application[J].Journal of Image and Graphics,2012,17(3):441-446.[19] 冯永玖,刘丹,韩震.遥感和GIS支持下的九段沙岸线提取及变迁研究[J].国土资源遥感,2012,24(1):65-69. Feng Y J,Liu D,Han Z.Shoreline extraction and change analysis of the Jiuduansha islands with the support of remote sensing and GIS technologies[J].Remote Sensing for Land and Resources,2012,24(1):65-69.[20] 沈琦,汪承义,赵斌.几何活动轮廓模型用于高分辨率遥感影像海岸线自动提取[J].复旦学报:自然科学版,2012,51(1):77-82,104. Shen Q,Wang C Y, Zhao B.Automatic waterline extraction in VHR imagery using geometric active contour model[J].Journal of Fudan University:Natural Science,2012,51(1):77-82,104.[21] 郭伟,朱大奎.深圳围海造地对海洋环境影响的分析[J].南京大学学报:自然科学版,2005,41(3):286-296. Guo W,Zhu D K.Reclamation and its impact on marine environment in Shenzhen area,China[J].Journal of Nanjing University:Natural Sciences,2005,41(3):286-296.[22] 李加林,杨晓平,童亿勤.潮滩围垦对海岸环境的影响研究进展[J].地理科学进展,2007,26(2):43-51. Li J L,Yang X P,Tong Y Q.Progress on environmental effects of tidal flat reclamation[J].Progress in Geography,2007,26(2):43-51.
2013, Vol. 25 
