Variation of River Islands around a Large City along the Yangtze River from Satellite Remote Sensing Images

doi:10.3390/s17102213

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋环境与数值模拟研究室

	Variation of River Islands around a Large City along the Yangtze River from Satellite Remote Sensing Images
	Shi, Haiyun 1; Gao, Chao 2; Dong, Changming 1,3; Xia, Changshui 4,5; Xu, Guanglai 6
刊名	SENSORS
	2017-10
卷号	17 期号:10
关键词	flow and sediment Nanjing river islands remote sensing soil erosion sensor the Yangtze River
ISSN号	1424-8220
DOI	10.3390/s17102213
英文摘要	River islands are sandbars formed by scouring and silting. Their evolution is affected by several factors, among which are runoff and sediment discharge. The spatial-temporal evolution of seven river islands in the Nanjing Section of the Yangtze River of China was examined using TM (Thematic Mapper) and ETM (Enhanced Thematic Mapper)+ images from 1985 to 2015 at five year intervals. The following approaches were applied in this study: the threshold value method, binarization model, image registration, image cropping, convolution and cluster analysis. Annual runoff and sediment discharge data as measured at the Datong hydrological station upstream of Nanjing section were also used to determine the roles and impacts of various factors. The results indicated that: (1) TM/ETM+ images met the criteria of information extraction of river islands; (2) generally, the total area of these islands in this section and their changing rate decreased over time; (3) sediment and river discharge were the most significant factors in island evolution. They directly affect river islands through silting or erosion. Additionally, anthropocentric influences could play increasingly important roles.
资助项目	National Key Research and Development Program of China[2016YFC0503602] ; National Key Research and Development Program of China[2016YFB0201103] ; National Key Research and Development Program of China[2017YFA0604101] ; National Key Research and Development Program of China[2017YFA0604104]
WOS研究方向	Chemistry ; Electrochemistry ; Instruments & Instrumentation
语种	英语
出版者	MDPI AG
WOS记录号	WOS:000414931500055
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/3074]
专题	业务部门_海洋环境与数值模拟研究室
作者单位	1.Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing 210044, Jiangsu, Peoples R China; 2.Ningbo Univ, Dept Geog & Spatial Informat Techn, Ningbo 315211, Zhejiang, Peoples R China; 3.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA 90009 USA; 4.State Ocean Adm, Key Lab Marine Sci & Numer Modeling, Inst Oceanog 1, Qingdao 266061, Peoples R China; 5.Qingdao Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao 266237, Peoples R China; 6.Anhui Normal Univ, Coll Territorial Resources & Tourism, Wuhu 241000, Peoples R China
推荐引用方式 GB/T 7714	Shi, Haiyun,Gao, Chao,Dong, Changming,et al. Variation of River Islands around a Large City along the Yangtze River from Satellite Remote Sensing Images[J]. SENSORS,2017,17(10).
APA	Shi, Haiyun,Gao, Chao,Dong, Changming,Xia, Changshui,&Xu, Guanglai.(2017).Variation of River Islands around a Large City along the Yangtze River from Satellite Remote Sensing Images.SENSORS,17(10).
MLA	Shi, Haiyun,et al."Variation of River Islands around a Large City along the Yangtze River from Satellite Remote Sensing Images".SENSORS 17.10(2017).