水力发电2012,Vol.38Issue(3):1-4,4.
基于遥感图像的黄河口近年演变特征分析
Analysis on the Evolution of Yellow River Estuary in Recent Years Based on Remote Sensing Images
摘要
Abstract
For analyzing the evolution of Yellow River estuary, ten remote sensing images are used as the data source, in which one image each year in 1996 and 2000 and two images each year from 2006 to 2009. The coastlines and land area in study area are extracted from remote sensing images. Combined with the hydrologic data from Lijin Hydrologic Station, the relations between coastline change and the runoffs and sediment loads are analyzed. The results show that the area of the estuary is greatly affected by the changes of runoff and sediment load. From 1996 to 2000, the area of the Yellow River estuary decreases because of the cutoff of River. After the operation of Xiaolangdi Reservoir, the area increases substantially from 2000 to 2006. Because the runoff and sediment load decreased, the estuary is eroded constantly after 2007. The estuary improvement should be seriously taken.关键词
遥感图像/水沙变化/岸线/黄河口Key words
remote sensing image/change of runoff and sediment load/coastline/Yellow River estuary分类
建筑与水利引用本文复制引用
李梦楚,胡春宏..基于遥感图像的黄河口近年演变特征分析[J].水力发电,2012,38(3):1-4,4.基金项目
国家自然科学基金创新群体基金项目(50721006) (50721006)
国家杰出青年基金项目(50725930) (50725930)