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    Analysis of Uncertainties Associated to Underwater Hyperspectral Attenuation Measurements.

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    Date
    2015
    Author
    Zhao, Liancheng
    Mao, Zhihua
    Tao, Bangyi
    Chen, Peng
    Zhu, Qiankun
    
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    Abstract
    The uncertainty for the underwater hyperspectral measurement of attenuation (ACS) is studied. The attenuation measurements for standard particles of different diameters (2,5,10,20 mm) by ultra violet visible (UV-Vis) spectrophotometer (PE35) are compared with model values by Mie scattering theory, and the attenuation measurement error of PE35 is found less than 8% . Subsequently, simultaneous atlenuation measurements by ACS and PE35 are carried out for samples from the high turbid water in the East China Sea. Comparative results show the attenuation measurements by ACS are underestimated in high turbid water, and the uncertainty of ACS measurements has a negative correlation with wavelength, conversely, with a strong positive correlation with turbidity of water. The attenuation measurements of ACS(10 cm) and ACS(25 cm) are underestimated within 17.2% ~19.04% and 7.84% ~15.36% in low turbid water, respectively, while ACS(10 cm) is within 26.4%~28.24% in high turbid water......
    Resource URL
    http://www.opticsjournal.net/Articles/abstract?aid=OJ150403000014WsYv2y
    Journal
    Acta Optica Sinica
    Volume
    35
    Issue
    4, Article 0401004
    Page Range
    9pp.
    Document Language
    zh
    Sustainable Development Goals (SDG)
    14.A
    Essential Ocean Variables (EOV)
    Ocean colour
    Best Practice Type
    Manual (incl. handbook, guide, cookbook etc)
    DOI Original
    10.3788/AOS201535.0401004
    Citation
    Zhao, l.; Mao, Z.; Tao, B.; Chen, P. and Zhu, Q. (2015) Analysis of Uncertainties Associated to Underwater Hyperspectral Attenuation Measurements. Acta Optica Sinica, 4:0401004, 9pp. DOI: 10.3788/AOS201535.0401004
    URI
    http://hdl.handle.net/11329/1297
    http://dx.doi.org/10.25607/OBP-805
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