Absorption coefficient of yellow substance in the Pearl River estuary

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 热带海洋环境国家重点实验室(LTO)

	Absorption coefficient of yellow substance in the Pearl River estuary
	Chen, CQ ; Shi, P ; Yin, KD ; Pan, ZL ; Zhan, HG
刊名	OCEAN REMOTE SENSING AND APPLICATIONS
	2003
卷号	4892 页码:215-221
关键词	yellow substance absorption coefficient Pearl River estuary GOALS remote sensing
ISSN号	0277-786X
中文摘要	The Pearl River system is mainly located in the Guangdong Province in southern China, with the length of 2214 km. and total area of 453,690 km(2). The Pearl River estuary is the largest estuary in the South China Sea (SCS), with a mean annual discharge of 326 billion m(3), of which are about 30 million tons of dissolved matters annually discharged into the estuary. The high concentration of suspended sediments and dissolved matters makes the optical properties of the coastal waters very complex. The spectral absorption coefficient of yellow substance (A(y)(lambda) is one of the inherent optical properties that influence the reflectance (or water-leaving radiance) of the water body. It is essential to measure A(y)(lambda) and to quantify its contributions to the total absorption of the water body. In this study, the Gelbstoff Optical Analyse Laboratory System (GOALS), with spectral range from 200 to 850 nm and with spectral resolution of 0.37 nm per pixel, was used to measure A(y)(lambda) in the Pearl River estuary and in the adjacent coastal waters in July 2002. A(y)(400) was around 1.5 m(-1) near the river mouth (zero salinity). It decreases with increasing salinity following an apparent non-linear mixing line. There is no apparent relationship between A(y)(400) and dissolved organic carbon (DOC) concentration, indicating that the estuary is a complex, non-point source environment. This presents a great challenge to remote sensing study in this area.
学科主题	Optics
收录类别	SCI
原文出处	SPIE-INT SOC OPTICAL ENGINEERING
公开日期	2011-07-03 ; 2011-07-15
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/5523]
专题	南海海洋研究所_热带海洋环境国家重点实验室(LTO)
推荐引用方式 GB/T 7714	Chen, CQ,Shi, P,Yin, KD,et al. Absorption coefficient of yellow substance in the Pearl River estuary[J]. OCEAN REMOTE SENSING AND APPLICATIONS,2003,4892:215-221.
APA	Chen, CQ,Shi, P,Yin, KD,Pan, ZL,&Zhan, HG.(2003).Absorption coefficient of yellow substance in the Pearl River estuary.OCEAN REMOTE SENSING AND APPLICATIONS,4892,215-221.
MLA	Chen, CQ,et al."Absorption coefficient of yellow substance in the Pearl River estuary".OCEAN REMOTE SENSING AND APPLICATIONS 4892(2003):215-221.