1984～2012年海州湾海岸线时空演变研究  

Study of temporal and spatial evolutions of coastline of the Haizhou Bay from 1984 to 2012

作　　者：巢子豪 高一博[1] 谢宏全[1,2] 卢霞[1,2] 

机构地区：[1]淮海工学院测绘工程学院,江苏连云港222005 [2]海岛(礁)测绘技术国家测绘地理信息局重点实验室,山东青岛266590

出　　处：《海洋科学》2016年第6期95-100,共6页Marine Sciences

基　　金：国家海洋公益性行业科研专项(201105004);江苏省海洋科学技术优势学科建设项目(2014137);海岛(礁)测绘技术国家测绘地理信息局重点实验室资助项目(2014B09);国家自然科学基金项目(41506106)~~

摘　　要：以Landsat影像为数据源,通过改进归一化水体指数、二值化、潮位校正模型提取海岸线,使用数字海岸线分析系统（Digital Shoreline Analysis System,DSAS）,对1984~2012年海州湾海岸线的时空演变进行了研究。结果表明,1984~2012年间海州湾海岸线整体以4.29 m/a向海洋推进,其中,48%的海岸出现侵蚀,侵蚀速率为22.83 m/a,侵蚀现象主要出现在大堤修建前的部分粉砂淤泥质海岸。52%的海岸出现淤积,淤积速率为25.90 m/a,淤积现象主要出现在人工海岸、河口海岸和受大堤影响的粉砂淤泥质海岸。海岸线时空演变研究有利于科学地规划、开发和管理海洋及其沿岸空间资源,并保证其环境及经济的可持续发展。In this study, we extracted coastlines from the modified normalized difference water index using a binaryzation and tidal correction model with Landsat satellite images as the data source. On this basis, we analyzed the temporal and spatial evolutions of the Haizhou Bay coastline from 1984 to 2012 using the digital shoreline analysis system. The result indicates that the coastline of the Haizhou Bay has been moving at a rate of 4.29 m/a overall. 48% of the coast has eroded at a rate of 22.83 m/a, most of which appeared as silt coast before the construction of a levee. 52% of the coast has been deposited at a rate of 22.83 m/a, most of which appeared as an artificial coast, an estuary, and a coast, with the silt coast being affected by the levee. An investigation of the temporal and spatial evolutions of the coastline is beneficial for scientific planning, development, and management of ocean and coastal resources to guarantee the sustainable development of its environment and economy.

关 键 词：海州湾 海岸线 时空演变 DSAS(Digital SHORELINE ANALYSIS System) 

分 类 号：P748[天文地球—海洋科学]