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Remote Sensing Technology and Application, Volume. 39, Issue 1, 110(2024)

Inversion of Beibu Gulf Chlorophyll a Concentration based on Sentinel-3A Satellite

Juan SHEN1、*, Zhigang ZHOU2, Tonghui ZHANG2, and Dazhao LIU3,4
Author Affiliations
  • 1Research Center for Indian Ocean Island Countries，South China University of Technology，Guangzhou 510641 China
  • 2Guangdong Provincial Land Survey and Planning Institute，Guangzhou 510075，China
  • 3School of Electronic and Information Engineering，Guangdong Ocean University，Zhanjiang 524088，China
  • 4Guangdong Provincial Marine Remote Sensing and Information Technology Engineering Technology Center，Zhanjiang 524088，China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (15)
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    References (25)
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    Figures & Tables(15)
    Study area （Shown in the rectangular frame）

    Fig. 1. Study area （Shown in the rectangular frame）

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    The Raw Image of OCLI in Beibu Gulf

    Fig. 3. The Raw Image of OCLI in Beibu Gulf

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    The Roadmap of ICOR atmosphere correction

    Fig. 4. The Roadmap of ICOR atmosphere correction

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    The result of water extraction in Beibu Gulf

    Fig. 5. The result of water extraction in Beibu Gulf

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    The Remote Sensing reflectance curve of winter waters in Beibu Gulf

    Fig. 6. The Remote Sensing reflectance curve of winter waters in Beibu Gulf

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    The Remote Sensing Reflectance of waters in Beibu Gulf

    Fig. 7. The Remote Sensing Reflectance of waters in Beibu Gulf

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    Partitioning rules of Beibu Gulf water body decision tree

    Fig. 8. Partitioning rules of Beibu Gulf water body decision tree

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    The partition of waters in the OLCI image of Beibu Gulf

    Fig. 9. The partition of waters in the OLCI image of Beibu Gulf

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    Correlation coefficient of single-band model

    Fig. 10. Correlation coefficient of single-band model

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    The correlation analysis statistics

    Fig. 11. The correlation analysis statistics

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    The optimal model for waters inversion in Beibu Gulf

    Fig. 12. The optimal model for waters inversion in Beibu Gulf

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    The non-regional inversion of chlorophyll a concentration in the OLCI image of Beibu Gulf

    Fig. 13. The non-regional inversion of chlorophyll a concentration in the OLCI image of Beibu Gulf

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    Regional inversion of chlorophyll a concentration in the OLCI image of Beibu Gulf

    Fig. 14. Regional inversion of chlorophyll a concentration in the OLCI image of Beibu Gulf

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    • Table 1. Band characteristics of Sentinel-3A satellite OLCI

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      Table 1. Band characteristics of Sentinel-3A satellite OLCI

      波段中心波长/nm带宽/nm功能
      Oa0140015参与大气校正中气溶胶订正、改进水汽订正
      Oa02412.510反演水体中的黄色物质及陆源物质（如影响水体浑浊度的泥沙量等）
      Oa03442.510反演叶绿素吸收，植物地球化学效应分析
      Oa0449010反演水体高含量叶绿素、其他色素等
      Oa0551010反演叶绿素、悬浮物，监测海洋赤潮
      Oa0656010提供水体叶绿素反演的参照基准
      Oa0762010反演悬浮物载量
      Oa0866510反演叶绿素、悬浮物、黄色物质，浮游植物分析（如归一化植被指数）
      Oa09673.757.5配合665、681 nm波段，提高荧光光谱反演精度
      Oa10681.257.5提供叶绿素荧光峰信息
      Oa11708.7510提供叶绿素荧光峰检测基线值，MCI的信号波段
      Oa12753.757.5氧分子吸收，植被监测
      Oa13761.252.5氧分子吸收波段，气溶胶反演
      Oa14764.3753.75大气校正
      Oa15767.52.5提供云顶氧压，陆面荧光强度信息。
      Oa16778.7515参与大气校正中气溶胶订正
      Oa1786520参与大气校正中气溶胶订正，云检测
      Oa1888510水汽吸收参考波段，植被监测
      Oa1990010水汽吸收，植被监测
      Oa2094020水汽吸收，参与大气校正中气溶胶订正
      Oa21102040参与大气校正中气溶胶订正

    • Table 2. The simulation results of inversion model of chlorophyll a concentration in Beibu Gulf’s waters

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      Table 2. The simulation results of inversion model of chlorophyll a concentration in Beibu Gulf’s waters

      分区反演模型模型表达式R2RMSEMRE
      未分区水体X=[Rrs(665)/Rrs(673.75)]*Rrs(620)y=9.3369e-19.83x0.240.850.58
      X=[1/Rrs(708.75)-1/Rrs(673.75)]*Rrs(400)y=-3.3547x+2.06620.190.860.65
      X=Rrs(490)/Rrs(1020)y=-0.4135x+3.5640.170.850.68
      X=[Rrs(490)-Rrs(885)]/[Rrs(490)+Rrs(885)]y=-9.2837x+7.18870.170.860.71
      X=Rrs(490)-Rrs(767.5)y=-39.796x-3.31230.170.890.71
      近岸水体X=Rrs(764.375)/Rrs(681.25)y=165.06x2-107.41x+18.2120.670.390.29
      X=[Rrs(673.75)-Rrs(764.375)]/[Rrs(673.75)+Rrs(764.375)]y=-16.755x+9.15630.600.360.39
      X=[1/Rrs(442.5)-1/Rrs(510)]*Rrs(400)y=-15.621x+2.34170.580.400.48
      X=[Rrs(560)/Rrs(764.375)]*Rrs(753.75)y=-62.832x+8.19250.570.450.67
      X=Rrs(510)-Rrs(442.5)y=-169.88x+2.3650.540.460.69
      过度水体X=[1/Rrs(620)-1/Rrs(708.75)]/Rrs(753.75)y=146.95x2-75.243x+9.4020.800.300.12
      X=[Rrs(764.375)/Rrs(865)]*Rrs(560)y=-50.791x+4.46770.650.360.37
      X=Rrs(665)/Rrs(510)y=17.039x-12.0380.610.390.37
      X=[Rrs(620)-Rrs(681.25)]/[Rrs(620)+Rrs(681.25)]y=-26.464x+4.53080.600.420.42
      X=Rrs(620)-Rrs(681.25)y=-220.1x+2.9640.500.470.65
      离岸水体X=Rrs(708.75)-Rrs(764.375)y=225029x2-4174.2x+19.6580.840.290.26
      X=[Rrs(708.75)/Rrs(764.375)]*Rrs(400)y=-82.033x+11.210.700.360.27
      X=[1/Rrs(900)-1/Rrs(767.5)]*Rrs(764.375)y=40.189x-6.0050.670.400.28
      X=[Rrs(900)-Rrs(767.5)]/[Rrs(900)+Rrs(767.5)]y=72.935x-6.84170.550.400.28
      X=Rrs(900)/Rrs(767.5)y=28.682x-34.5970.540.490.30
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    Juan SHEN, Zhigang ZHOU, Tonghui ZHANG, Dazhao LIU. Inversion of Beibu Gulf Chlorophyll a Concentration based on Sentinel-3A Satellite[J]. Remote Sensing Technology and Application, 2024, 39(1): 110

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    Paper Information

    Category: Research Articles

    Received: Jun. 25, 2023

    Accepted: --

    Published Online: Jul. 22, 2024

    The Author Email: SHEN Juan (jshen@scut.edu.cn)

    DOI:10.11873/j.issn.1004-0323.2024.1.0110

    Topics

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