黄河三角洲海岸线的演变特征分析  

Analysis on Evolution Characteristics of the Coastline of the Yellow River Delta

作　　者：程义吉[1] 张建怀[2] 杨晓阳[1] 

机构地区：[1]黄河河口研究院,山东东营257091 [2]山东黄河河务局,山东济南250011

出　　处：《人民黄河》2011年第10期118-120,共3页Yellow River

基　　金：水利部公益性行业科研专项(200701030)

摘　　要：受来水来沙、河口流路变化、海洋动力和人类活动等因素影响,黄河三角洲海岸线时空演变迅速而复杂。采用遥感与GIS技术相结合的方法,分析处理1987—2003年的多时相卫星遥感影像,采用非监督分类方法提取海岸线时空演变信息,结合利津水文站水沙数据,对河口面积和水沙量的关系进行了分析。结果表明:①随着水沙量的减少,河口逐渐由淤积转为侵蚀,并且程度趋于严重;②沙水比与河口变化面积之间存在较好的正相关关系。Influenced by the coming water and sediment,river flow changing,marine dynamic,and human activities,the temporal and spatial changes of the coastline of the Yellow Delta tend to be faster and more complex.By using remote sensing and GIS technique,this paper uses several TM images from 1987 to 2003 and non-supervised classification method to obtain the temporal and spatial change information of the coastline,and analyses the relation between estuary area and amount of sediment and water by using the data of water and sediment from Lijin Hydrological Station.The results show that a） with the reduction of water and sediment amount,the estuary turns gradually from deposition to erosion,and the degree tends to be more and more severe;and b） there is positive correlation between sediment and water ratio and the estuary area.

关 键 词：遥感 动态监测 来水来沙 海岸线 黄河三角洲 

分 类 号：P343.5[天文地球—水文科学]