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    • Deriving landfast ice with Sentinel-1 multi-aperture coherence image

    • “Fixed ice affects polar climate through participating in air sea flux exchange and radiative transfer. Researchers used sub aperture interferometry technology to process Sentinel-1 SAR images, combined with Otsu threshold segmentation and connected component analysis to extract fixed ice. The average accuracy was verified to be 96.84% in four typical regions of Greenland and Antarctica, providing a solution for polar shipping security and climate change monitoring.”
      • role：First author第一作者
      • Affiliation：

        School of Geospatial Engineering and Science/Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Zhuhai 519082, China

        Key Laboratory of Comprehensive Observation of Polar Environment of Ministry of Education (Sun Yat-Sen University), Zhuhai 519082, China

      • Email：chengyh39@mail2.sysu.edu.cn
      • Introduction：程煜恒，研究方向为极地遥感。E-mail： chengyh39@mail2.sysu.edu.cn

      CHENG Yuheng

      ,
      • role：Corresponding author通信作者
      • Affiliation：

        School of Geospatial Engineering and Science/Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Zhuhai 519082, China

        Key Laboratory of Comprehensive Observation of Polar Environment of Ministry of Education (Sun Yat-Sen University), Zhuhai 519082, China

      • Email：ligang57@mail.sysu.edu.cn
      • Introduction：李刚，研究方向为微波遥感。E-mail： ligang57@mail.sysu.edu.cn

      LI Gang

      * ,
      • Affiliation：

        School of Geospatial Engineering and Science/Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Zhuhai 519082, China

        Key Laboratory of Comprehensive Observation of Polar Environment of Ministry of Education (Sun Yat-Sen University), Zhuhai 519082, China

      CHEN Zhuoqi

      ,
      • Affiliation：

        School of Geospatial Engineering and Science/Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Zhuhai 519082, China

        Key Laboratory of Comprehensive Observation of Polar Environment of Ministry of Education (Sun Yat-Sen University), Zhuhai 519082, China

      YANG Zhibin

      ,
      • Affiliation：

        School of Geospatial Engineering and Science/Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Zhuhai 519082, China

        Key Laboratory of Comprehensive Observation of Polar Environment of Ministry of Education (Sun Yat-Sen University), Zhuhai 519082, China

      CHENG Xiao

    • Vol. 30, Issue 5, Pages: 1433-1449(2026)  

    • DOI：10.11834/jrs.20264540    

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Key Laboratory of Emergency Satellite Engineering and Application,Ministry of Emergency Management
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