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学科主题: Chemistry, Analytical; Electrochemistry; Instruments & Instrumentation
题名: An Instrument for In Situ Measuring the Volume Scattering Function of Water: Design, Calibration and Primary Experiments
作者: Li, C ; Cao, WX ; Yu, J ; Ke, TC ; Lu, GX ; Yang, YZ ; Guo, CY
通讯作者: liclaire@scsio.ac.cn ; wxcao@scsio.ac.cn ; yj_scs@163.com ; ketian@scsio.ac.cn ; luguixin@scsio.ac.cn ; wuli@scsio.ac.cn ; guochaoying@scsio.ac.cn
关键词: ocean optics ; scattering measurements ; array detection ; calibration test ; in-field measurement ; scattering volume ; optical radiometric calibration
刊名: SENSORS
发表日期: 2012
卷: 12, 期:4, 页:4514-4533
部门归属: [Li, Cai; Cao, Wenxi; Ke, Tiancun; Lu, Guixin; Yang, Yuezhong; Guo, Chaoying] Chinese Acad Sci, State Key Lab Oceanog Trop, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Yu, Jing] Chinese Acad Fishery Sci, S China Sea Fisheries Res Inst, Guangzhou 510300, Guangdong, Peoples R China
项目归属: LTO
摘要: The optical volume scattering function (VSF) of seawater is a fundamental property used in the calculation of radiative transfer for applications in the study of the upper-ocean heat balance, the photosynthetic productivity of the ocean, and the chemical transformation of photoreactive compounds. A new instrument to simultaneously measure the VSF in seven directions between 20 degrees to 160 degrees, the attenuation coefficient, and the depth of water is presented. The instrument is self-contained and can be automatically controlled by the depth under water. The self-contained data can be easily downloaded by an ultra-short-wave communication system. A calibration test was performed in the laboratory based on precise estimation of the scattering volume and optical radiometric calibration of the detectors. The measurement error of the VSF measurement instrument has been estimated in the laboratory based on the Mie theory, and the average error is less than 12%. The instrument was used to measure and analyze the variation characteristics of the VSF with angle, depth and water quality in Daya Bay for the first time. From these in situ data, we have found that the phase functions proposed by Fournier-Forand, measured by Petzold in San Diego Harbor and Sokolov in Black Sea do not fit with our measurements in Daya. These discrepancies could manly due to high proportion of suspended calcium carbonate mineral-like particles with high refractive index in Daya Bay.
语种: 英语
WOS记录号: WOS:000303309300043
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10189
Appears in Collections:热带海洋环境国家重点实验室(LTO)_期刊论文

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Recommended Citation:
Li, C; Cao, WX; Yu, J; Ke, TC; Lu, GX; Yang, YZ; Guo, CY.An Instrument for In Situ Measuring the Volume Scattering Function of Water: Design, Calibration and Primary Experiments,SENSORS,2012,12(4):4514-4533
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