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
发表期刊REMOTE SENSING AND GIS DATA PROCESSING AND APPLICATIONS; AND INNOVATIVE MULTISPECTRAL TECHNOLOGY AND APPLICATIONS, PTS 1 AND 2
ISSN0277-786X
卷号6790页码:79032-79032
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.
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
关键词Hyperspectral Derivative Spectra Chlorophyll-a Turbid Estuarine Waters
学科领域Optics
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收录类别sci
资助项目LED
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/5831
专题热带海洋环境国家重点实验室(LTO)
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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[J]. REMOTE SENSING AND GIS DATA PROCESSING AND APPLICATIONS; AND INNOVATIVE MULTISPECTRAL TECHNOLOGY AND APPLICATIONS, PTS 1 AND 2,2007,6790:79032-79032.
APA Shia, HY,Xing, QQ,Chen, CQ,Shi, P,&Tang, SL.(2007).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 2,6790,79032-79032.
MLA Shia, HY,et al."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 6790(2007):79032-79032.
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