Using second-derivative spectrum to estimate Chlorophyll-alpha concentration in turbid estuarine waters - art. no. 679032

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)

	Using second-derivative spectrum to estimate Chlorophyll-alpha concentration in turbid estuarine waters - art. no. 679032
	Shia, HY ; Xing, QQ ; Chen, CQ ; Shi, P ; Tang, SL
	2007
关键词	hyperspectral derivative spectra chlorophyll-a turbid estuarine waters
卷号	6790
页码	79032-79032
中文摘要	Hyperspectral technique is considered as one promising tool to solve the problems in monitoring optically-complex waters, which can be applied in optical sensors on board bouy, plane and satellite. In order to apply the technique in the in-situ chlorophyll monitoring of estuarine turbid waters, two cruises were carried out in May, 2004 and August, 2006, respectively, in Pearl River Estuary, China. In the cruises, water samples were collected at each sample station, a portable field spectroradiometer was used simultaneously to measure the downwelling sky radiance, and upwelling radiance of water and reference plaque, and the reflectance was calculated out. Further, the original reflectance spectra with 0.38 nm spectral resolution were resampled to 10 run resolution, and then derivative spectra were processed. The results of correlation analysis between the chlorophyll-a concentrations and derivative spectra indicate that the second derivative spectra especially at 670 nm can be used to estimate chlorophyll-a concentration of turbid estuarine waters, which suggests a new way for the in-situ chlorophyll measurement in the optically-complex waters.
收录类别	SCI
会议网址	SPIE-INT SOC OPTICAL ENGINEERING
会议录	REMOTE SENSING AND GIS DATA PROCESSING AND APPLICATIONS; AND INNOVATIVE MULTISPECTRAL TECHNOLOGY AND APPLICATIONS, PTS 1 AND 2
学科主题	Optics
ISSN号	0277-786X
内容类型	会议论文
源URL	[http://ir.scsio.ac.cn/handle/344004/5831]
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	Shia, HY,Xing, QQ,Chen, CQ,et al. Using second-derivative spectrum to estimate Chlorophyll-alpha concentration in turbid estuarine waters - art. no. 679032[C]. 见:.SPIE-INT SOC OPTICAL ENGINEERING.