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学科主题: Optics
题名: Using second-derivative spectrum to estimate Chlorophyll-alpha concentration in turbid estuarine waters - art. no. 679032
作者: Shia, HY ; Xing, QQ ; Chen, CQ ; Shi, P ; Tang, SL
会议文集: REMOTE SENSING AND GIS DATA PROCESSING AND APPLICATIONS; AND INNOVATIVE MULTISPECTRAL TECHNOLOGY AND APPLICATIONS, PTS 1 AND 2
出版日期: 2007-01-01
关键词: hyperspectral ; derivative spectra ; chlorophyll-a ; turbid estuarine waters
会议网址: 查看原文
收录类别: sci
ISSN: 0277-786X
部门归属: [Shia, Heyin; Xing, Qianguo; Chen, Chuqun; Shi, Ping; Tang, Shilin] Chinese Acad Sci, LED, S China Sea Inst Oceanol, Guangzhou 510301, Peoples R China
项目归属: LED
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.
内容类型: 会议论文
URI标识: http://ir.scsio.ac.cn/handle/344004/5831
Appears in Collections:热带海洋环境动力学重点实验室(LED)_会议论文

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Recommended Citation:
Shia, HY; Xing, QQ; Chen, CQ; Shi, P; Tang, SL.Using second-derivative spectrum to estimate Chlorophyll-alpha concentration in turbid estuarine waters - art. no. 679032,REMOTE SENSING AND GIS DATA PROCESSING AND APPLICATIONS; AND INNOVATIVE MULTISPECTRAL TECHNOLOGY AND APPLICATIONS, PTS 1 AND 2,2007,6790():79032-79032
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