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基于遥感的南海北部中尺度涡对内孤立波传播的影响

孙丽娜 张杰 孟俊敏 崔伟

孙丽娜,张杰,孟俊敏,等. 基于遥感的南海北部中尺度涡对内孤立波传播的影响[J]. 海洋学报,2022,44(7):0–7 doi: 10.12284/hyxb2022106
引用本文: 孙丽娜,张杰,孟俊敏,等. 基于遥感的南海北部中尺度涡对内孤立波传播的影响[J]. 海洋学报,2022,44(7):0–7 doi: 10.12284/hyxb2022106
Sun Li’na,Zhang Jie,Meng Junmin, et al. Influence of mesoscale eddy on internal solitary wave propagation in the northern South China Sea based on remote sensing[J]. Haiyang Xuebao,2022, 44(7):0–7 doi: 10.12284/hyxb2022106
Citation: Sun Li’na,Zhang Jie,Meng Junmin, et al. Influence of mesoscale eddy on internal solitary wave propagation in the northern South China Sea based on remote sensing[J]. Haiyang Xuebao,2022, 44(7):0–7 doi: 10.12284/hyxb2022106

基于遥感的南海北部中尺度涡对内孤立波传播的影响

doi: 10.12284/hyxb2022106
基金项目: 国家自然科学基金(42006164)。
详细信息
    作者简介:

    孙丽娜(1985-),女,吉林省桦甸市人,主要从事海洋内波遥感探测的研究。E-mail:sunln@fio.org.cn

    通讯作者:

    孟俊敏,男,研究员,主要从事海洋微波遥感方面的工作。E-mail:mengjm@fio.org.cn

  • 中图分类号: P731.24;P724.2

Influence of mesoscale eddy on internal solitary wave propagation in the northern South China Sea based on remote sensing

  • 摘要: 海洋内孤立波和中尺度涡是南海北部常见的中尺度动力过程。本文利用2010−2015年的Terra/Aqua-MODIS、ENVISAT ASAR和多源卫星高度计资料开展了南海海洋内孤立波和中尺度涡遥感探测研究,分析了中尺度涡对内孤立波传播方向的影响。结果表明,中尺度涡和内孤立波主要在南海东北部海域共存,当二者共存时,气旋(冷涡)促使内孤立波偏离原来的传播方向,向西偏南方向传播;反气旋(暖涡)促使内孤立波向西偏北方向传播,气旋与反气旋改变的内孤立波传播方向刚好相反。内孤立波和中尺度涡共存时间主要集中在3−9月,其中,3月受气旋和反气旋的共同作用,内孤立波传播方向几乎无变化;4月和5月,主要受气旋影响,内孤立波偏离原来传播方向向南传播;6−9月,主要受反气旋影响,内孤立波偏离原来的传播方向向北传播。本文利用遥感手段探索了海洋中尺度涡对内孤立波传播方向的影响,结果与现场观测结果一致。
  • 图  1  南海中尺度涡和内孤立波空间分布

    不同颜色的曲线代表不同年份的内孤立波波峰线;红色三角代表反气旋涡的中心位置;蓝色圆圈代表气旋涡的中心位置

    Fig.  1  Spatial distribution of mesoscale eddy and internal solitary wave in the South China Sea

    The curves with different colors represent the internal solitary wave peak lines in different years;the red triangles represent the center of anticyclone eddy; the blue circles represent the center of cyclone eddy

    图  2  南海中尺度涡和内孤立波位置月分布

    黑色曲线代表内孤立波波峰线;红色块代表反气旋涡的位置;蓝色块代表气旋涡的位置

    Fig.  2  Monthly distribution of mesoscale eddy and internal solitary wave in the South China Sea

    The black curves represent the internal solitary wave peak lines;the red blocks represent the position of the anticyclone eddy; the blue blocks represent the position of the cyclone eddy

    图  3  南海东北部中尺度涡和内孤立波传播方向示意图

    黑色曲线代表内孤立波波峰线;红色块代表反气旋涡的位置;蓝色块代表气旋涡的位置

    Fig.  3  Schematic diagram of mesoscale eddy and propagation direction of internal solitary wave in northeast South China Sea

    The black curves represent the internal solitary wave peak lines;the red blocks represent the position of the anticyclone eddy; the blue blocks represent the position of the cyclone eddy

    图  4  RADARSAT-2图像

    对应的中尺度涡所用的数据为同一天AVISO分发的多源高度计海面高度异常融合数据;箭头代表地转流速

    Fig.  4  Radarsat-2 image

    The data used for the corresponding mesoscale eddy is multi-source altimeter sea surface height anomaly fusion data distributed by aviso on the same day; the arrow represents the geostrophic velocity

    图  5  MODIS图像

    对应的中尺度涡所用的数据为同一天的AVISO分发的多源高度计海面高度异常融合数据;箭头代表地转流速

    Fig.  5  MODIS image

    The data used for the corresponding mesoscale eddy is the multi-source altimeter sea surface height anomaly fusion data distributed by aviso on the same day; the arrow represents the geostrophic velocity

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出版历程
  • 收稿日期:  2021-06-23
  • 修回日期:  2021-12-19

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