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Acta Optica Sinica, Volume. 40, Issue 6, 0601004(2020)

Determination and Application of Specific Absorption Spectra of Phytoplankton Species in Yellow Sea and Bohai Sea

Nan Li1, Deyong Sun1,2,3、*, Yu Huan1, Shengqiang Wang1,2,3, Hailong Zhang1,2,3, Zhongfeng Qiu1,2,3, and Yijun He1,2,3
Author Affiliations
  • 1School of Marine Sciences, Nanjing University of Information Science and Technology, Nangjing, Jiangsu 210044, China
  • 2Jiangsu Key Laboratory of Ocean Dynamics Remote Sensing and Acoustics, Nangjing, Jiangsu 210044, China
  • 3Jiangsu Research Center for Ocean Survey Technology, Nangjing, Jiangsu 210044, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (8)
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    References (36)
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    Figures & Tables(8)
    Frequency-concentration of eight alga species (curve is normal distribution). (a) Diatoms; (b) Prasinophytes; (c) Cryptophytes; (d) Prymnesiophytes; (e) Chlorophytes; (f) Chrysophytes; (g) Dinoflagellates; (h) Cyanobacteria

    Fig. 1. Frequency-concentration of eight alga species (curve is normal distribution). (a) Diatoms; (b) Prasinophytes; (c) Cryptophytes; (d) Prymnesiophytes; (e) Chlorophytes; (f) Chrysophytes; (g) Dinoflagellates; (h) Cyanobacteria

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    Specific absorption spectra and mean values of 8 dominant alga species in LOO-CV

    Fig. 2. Specific absorption spectra and mean values of 8 dominant alga species in LOO-CV

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    Error distribution of retrieved absorption coefficient (dotted line is error curve, and solid line is average curve). (a) R2; (b) MAPE; (c) RMSE

    Fig. 3. Error distribution of retrieved absorption coefficient (dotted line is error curve, and solid line is average curve). (a) R2; (b) MAPE; (c) RMSE

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    Scatter diagrams of retrieved results and measured values at different wavebands (solid line is 1∶1 line). (a) 412 nm; (b) 443 nm; (c) 490 nm; (d) 555 nm; (e) 660 nm; (f) 680 nm

    Fig. 4. Scatter diagrams of retrieved results and measured values at different wavebands (solid line is 1∶1 line). (a) 412 nm; (b) 443 nm; (c) 490 nm; (d) 555 nm; (e) 660 nm; (f) 680 nm

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    Comparison of normalized specific absorption coefficient of different phytoplankton species at 440 nm waveband

    Fig. 5. Comparison of normalized specific absorption coefficient of different phytoplankton species at 440 nm waveband

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    • Table 1. Pigments for CHEMTAX analysis and corresponding algae informations

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      Table 1. Pigments for CHEMTAX analysis and corresponding algae informations

      SymbolPigmentAlgae
      PeriPeridininDinoflagellates
      But19'-butanoyloxy-fucoxanthinChrysophytes and Haptophytes
      FucoFucoxanthinDiatoms, Prymnesiophytes and some dinoflagellates
      Hex19'-hexanoyloxy-fucoxanthinPrymnesiophytes
      NeoNeoxanthinChlorophytes and Prasinophytes
      PraPrasinoxanthinPrasinophytes
      ViolViolaxanthinChlorophytes and Prasinophytes
      AlloAlloxanthinCryptophytes
      LutLuteinChlorophytes and Prasinophytes
      ZeaZeaxanthineCyanobacteria, Prochlorophytes, Chlorophytes and Chrysophytes
      ChlaChlorophyll aAll-except Prochlorophytes

    • Table 2. Initial characteristic pigment matrix for CHEMTAX analysis

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      Table 2. Initial characteristic pigment matrix for CHEMTAX analysis

      AlgaePeriButFucoHexNeoPraViolAlloLutZeaChla
      Prasinophytes00000.100.350.1100.0200.80
      Dinoflagellates1.060000000000
      Cryptophytes00000000.23000
      Chlorophytes00000.0800.0600.140.010.46
      Cyanobacteria0000000000.350
      Diatoms000.4700000000
      Chrysophytes00.370.1100000000
      Prymnesiophytes0001.71000000

    • Table 3. Final characteristic pigment matrix for CHEMTAX analysis

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      Table 3. Final characteristic pigment matrix for CHEMTAX analysis

      AlgaePeriButFucoHexNeoPraViolAlloLutZeaChla
      Prasinophytes00000.110.260.0900.0100.63
      Dinoflagellates1.280000000000
      Cryptophytes00000000.29000
      Chlorophytes00000.0700.0700.180.010.58
      Cyanobacteria0000000000.430
      Diatoms000.3700000000
      Chrysophytes00.290.1300000000
      Prymnesiophytes0001.350000000
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    Nan Li, Deyong Sun, Yu Huan, Shengqiang Wang, Hailong Zhang, Zhongfeng Qiu, Yijun He. Determination and Application of Specific Absorption Spectra of Phytoplankton Species in Yellow Sea and Bohai Sea[J]. Acta Optica Sinica, 2020, 40(6): 0601004

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    Paper Information

    Category: Atmospheric Optics and Oceanic Optics

    Received: Oct. 18, 2019

    Accepted: Dec. 2, 2019

    Published Online: Mar. 6, 2020

    The Author Email: Sun Deyong (sundeyong@nuist.edu.cn)

    DOI:10.3788/AOS202040.0601004

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology