Spacecraft Recovery & Remote Sensing, Volume. 46, Issue 2, 13(2025)

Analysis of the Remote Sensing Characteristics for Floating Enteromorpha prolifera on the Sea Surface by China’s Ocean Color Satellites

Xiaomin YE1,2, Zhijia LIN3, Heli TENG1,2, Maohua GUO1,2, and Xiaomei WANG1,2
Author Affiliations
  • 1State Key Laboratory of Satellite Ocean Environment Dynamics, National Satellite Ocean Application Service, Beijing 100081, China
  • 2Key Laboratory of Space Ocean Remote Sensing and Applications, Ministry of Natural Resources, Beijing 100081, China
  • 3National Marine Environmental Forecasting Center, Ministry of Natural Resources, Beijing 100081, China
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    Figures & Tables(12)
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    • Table 1. Specifications of the satellites and embedded sensors for the remote sensing data used in this study

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      Table 1. Specifications of the satellites and embedded sensors for the remote sensing data used in this study

      项目HY-1C、HY-1D新一代海洋水色观测卫星
      发射日期(北京时间)2018年9月7日(HY-1C)2020年6月11日(HY-1D)2023年11月16日
      过赤道时间10:30AM(降交点)/1:30PM(升交点)10:30AM(降交点)
      载荷COCTS、CZI、UVI、SCS、AISCOCTS、CZI、PMRIS、AIS
      时间分辨率(覆盖周期)/d1(COCTS、UVI、AIS)3(CZI)1(COCTS、AIS)3(PMRIS)3(CZI,仪器侧摆可视范围)
      空间分辨率(星下点)COCTS:1.1 kmUVI:1.1 km(合并模式)/550 m(全传模式)CZI:50 mCOCTS:500 mCZI:20 m(多光谱)/5 m(全色)PMRIS:100 m(多光谱模式)/200 m(高光谱模式)
      量化等级/bitCOCTS:12 UVI:14 CZI:12COCTS:14 CZI:12 PMRIS:14
      波段数COCTS:10(8可见光/近红外波段+2长波红外波段)UVI:2CZI:4COCTS:18(2紫外波段+11可见光/近红外波段+2短波红外波段+1中波红外波段+2长波红外波段)CZI:9(8多光谱+1全色波段)PMRIS:19(15紫外、可见光/近红外波段+4短波红外波段)或94(90高光谱波段+4短波红外波段)
      幅宽/kmCOCTS、UVI:≥2 950 CZI:≥950COCTS:≥3 000 CZI:≥60 (侧摆可视范围1 000 km)PMRIS:≥1 000
    • Table 2. Information index of remote sensing images from various sensors on the new-generation ocean color observation satellite

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      Table 2. Information index of remote sensing images from various sensors on the new-generation ocean color observation satellite

      卫星数据方差s2平均梯度AG信息熵IE
      CZI1.78×10−22.28×10−34.08
      PMRIS2.23×10−21.99×10−45.22
      COCTS1.08×10−26.10×10−64.71
    • Table 3. Area information of Enteromorpha prolifera extracted from sensors on the new-generation ocean color observation satellite

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      Table 3. Area information of Enteromorpha prolifera extracted from sensors on the new-generation ocean color observation satellite

      监测日期监测区域监测面积/km2
      CZIPMRIS
      2024年6月3日北纬34.830°~35.145°,东经120.630°~121.040°29.273.8
      2024年6月6日36.269.1
      2024年6月9日70.0124.6
      2024年6月18日98.9107.6
      2024年6月27日北纬34.816°~35.060°,东经119.873°~120.227°22.232.9
      2024年7月3日北纬35.338°~35.731°,东经120.122°~120.630°27.440.7
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    Xiaomin YE, Zhijia LIN, Heli TENG, Maohua GUO, Xiaomei WANG. Analysis of the Remote Sensing Characteristics for Floating Enteromorpha prolifera on the Sea Surface by China’s Ocean Color Satellites[J]. Spacecraft Recovery & Remote Sensing, 2025, 46(2): 13

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    Paper Information

    Category: Expert Special Contribution

    Received: Oct. 8, 2024

    Accepted: --

    Published Online: May. 23, 2025

    The Author Email:

    DOI:10.3969/j.issn.1009-8518.2025.02.002

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