Research on distribution of suspended sediment concentration in long time series based on mid-resolution imaging spectrometer data and quantile trend analysis

doi:10.1016/j.rsma.2020.101399

CORC > 光电技术研究所 > 中国科学院光电技术研究所 > 微细加工光学技术国家重点实验室（开放室）

	Research on distribution of suspended sediment concentration in long time series based on mid-resolution imaging spectrometer data and quantile trend analysis
	Luo, Xiangang ; Wang, Jingjing 4; Chen, Gang 1; Zhu, Shuang ; Huo, Zhibin 5; Liu, Xiuwei 2; Deng, Weiwei 2
刊名	REGIONAL STUDIES IN MARINE SCIENCE
	2020-09-20
卷号	39 页码:101399-1-10
关键词	Moderate-Resolution Imagine Spectrometry Suspended sediment concentration Quantile trend analysis
ISSN号	2352-4855
DOI	10.1016/j.rsma.2020.101399
文献子类	期刊论文
英文摘要	In order to explore the long-term variation trend of suspended sediment concentration (SSC) in the Pearl River Estuary, a multi-voyage in-situ measurements and Moderate-Resolution Imagine Spectrometry (MODIS) Level-1 products were used to establish a quantitative inversion model of the SSC in the Pearl River Estuary. In situ data were gathered with multiple campaigns, while the MODIS sensor was passing over the study area. Then, the Mann-Kendall algorithm and the Sen's slope estimation method were used to analyze the trend of various quantiles SSC. The accuracy of the SSC inversion model was verified by using multiple sets of measured data in which the correlation coefficient was 0.90 and the root mean square error was 4.76. The results showed that: (1) The SSC in the Pearl River Estuary shown a zonal distribution in the northeast-southwest direction, which was gradually reduced from the nearshore to the sea, with an average concentration of more than 90 mg L-1. (2) The SSC in the PRE displayed a decreasing trend, with an averaged SSC reduction rate of about 1.02 mg L-1 yr(-1) during 2004-2016. Decreasing rate in high SSC was generally larger than those was in low SSC, with a marked spatial difference. (3) The seasonal variation of dam-induced reduction of the sediment load into the PRE contributed to most of the low-percentile SSC decreases. The water-depth change in the PRE induced by human activities dominated the high-percentile SSC trends. The decrease of the wind speed over the PRE also affected the high-percentile SSC trend. (C) 2020 Published by Elsevier B.V.
出版地	AMSTERDAM
WOS关键词	PEARL RIVER
WOS研究方向	Ecology ; Marine & Freshwater Biology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000579792200062
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/10164]
专题	光电技术研究所_微细加工光学技术国家重点实验室（开放室）
作者单位	1.China Univ Geosci, Minist Educ, Key Lab Geol Survey & Evaluat, Wuhan, Peoples R China 2.Chinese Acad Geol Sci, Inst Hydrogeol & Environm Geol, Shijiazhuang, Hebei, Peoples R China 3.Geol Hazard Tech Serv Ctr Guizhou Prov, Guiyang, Peoples R China 4.China Univ Geosci, Sch Geog & Informat Engn, Wuhan, Peoples R China 5.China Univ Geosci, Coll Marine Sci & Technol, Wuhan, Peoples R China
推荐引用方式 GB/T 7714	Luo, Xiangang,Wang, Jingjing,Chen, Gang,et al. Research on distribution of suspended sediment concentration in long time series based on mid-resolution imaging spectrometer data and quantile trend analysis[J]. REGIONAL STUDIES IN MARINE SCIENCE,2020,39:101399-1-10.
APA	Luo, Xiangang.,Wang, Jingjing.,Chen, Gang.,Zhu, Shuang.,Huo, Zhibin.,...&Deng, Weiwei.(2020).Research on distribution of suspended sediment concentration in long time series based on mid-resolution imaging spectrometer data and quantile trend analysis.REGIONAL STUDIES IN MARINE SCIENCE,39,101399-1-10.
MLA	Luo, Xiangang,et al."Research on distribution of suspended sediment concentration in long time series based on mid-resolution imaging spectrometer data and quantile trend analysis".REGIONAL STUDIES IN MARINE SCIENCE 39(2020):101399-1-10.