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基于光学遥感的安达曼海内孤立波传播速度特性研究

黄松松 王晶 梅源 张紫越

黄松松,王晶,梅源,等. 基于光学遥感的安达曼海内孤立波传播速度特性研究[J]. 海洋学报,2019,41(7):15–21,doi:10.3969/j.issn.0253−4193.2019.07.002
引用本文: 黄松松,王晶,梅源,等. 基于光学遥感的安达曼海内孤立波传播速度特性研究[J]. 海洋学报,2019,41(7):15–21,doi:10.3969/j.issn. 0253−4193.2019.07.002
Huang Songsong,Wang Jing,Mei Yuan, et al. The velocity characteristics of internal solitary waves in the Andaman Sea by optical remote sensing[J]. Haiyang Xuebao,2019, 41(7):15–21,doi:10.3969/j.issn.0253−4193.2019.07.002
Citation: Huang Songsong,Wang Jing,Mei Yuan, et al. The velocity characteristics of internal solitary waves in the Andaman Sea by optical remote sensing[J]. Haiyang Xuebao,2019, 41(7):15–21,doi:10.3969/j.issn. 0253−4193.2019.07.002

基于光学遥感的安达曼海内孤立波传播速度特性研究

doi: 10.3969/j.issn.0253-4193.2019.07.002
基金项目: 国家重点研发计划(2017YFC1405602);国家自然科学基金项目(61871353)。
详细信息
    作者简介:

    黄松松(1993—),女,山东省青岛市人,主要研究方向为光学遥感。E-mail:Huangsongsonghss@163.com

    通讯作者:

    王晶(1962—),女,教授,主要研究方向为海洋内孤立波的探测。E-mail:wjing@ouc.edu.cn

  • 中图分类号: P731.24; P236

The velocity characteristics of internal solitary waves in the Andaman Sea by optical remote sensing

  • 摘要: 安达曼海内孤立波非常活跃且错综复杂,传播速度是内孤立波的重要特征参量,本文采用光学遥感手段建立了内孤立波传播速度的计算方法。收集并处理大量Terra/Aqua-MODIS遥感图像,利用两景图像追踪同一内孤立波与同一激发源产生的内孤立波波群两种方法定量研究安达曼海内孤立波传播速度。研究结果表明:安达曼海内孤立波传播速度在0.5~2.7 m/s之间,内孤立波传播方向主要受海底地形的影响,传播速度大小在传播过程中随水深变浅而呈减小的趋势,在深水区传播速度大小还呈现出季节性差异。
  • 图  1  安达曼海三维水深分布

    Fig.  1  Three-dimensional topography of the Andaman Sea

    图  2  安达曼海不同季节平均垂向温度(a)、盐度(b)、密度(c)及浮频率(d)曲线

    Fig.  2  Averaged temperature (a), salinity (b), density (c) and buoyancy frequency (d) vertical profiles in different seasons in the Andaman Sea

    图  3  2015—2017年MODIS图像统计获得的安达曼海内孤立波的空间分布

    Fig.  3  Spatial distribution of internal solitary waves obtained by MODIS images from 2015 to 2017 in the Andaman Sea

    图  4  追踪法计算内孤立波传播速度示意图

    a为2017年3月13日04:00 UTC的MODIS图像,b为2017年3月 13日07:00 UTC的MODIS图像

    Fig.  4  Schematic diagram for calculating the propagation velocity of internal solitary waves by tracing method

    MODIS images acquired at 04:00 UTC (a) and 07:00 UTC (b) on March 13, 2017

    图  5  潮周期法计算内孤立波传播速度示意图

    图为2018年3月3日04:30UTC的MODIS图像

    Fig.  5  Schematic diagram for calculating the propagation velocity of internal solitary waves by tidal period method

    The MODIS image acquired at 04:30 UTC on March 3, 2018

    图  6  图像追踪法获得内孤立波传播速度矢量图

    Fig.  6  Velocity vector of internal solitary waves aquired by image tracing method

    图  7  利用半日潮周期计算的内孤立波平均传播速度矢量

    Fig.  7  Velocity vector of internal solitary waves aquired by tide method

    图  8  传播速度随水深变化的散点分布

    Fig.  8  Distribution of propagation velocity and water depth

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出版历程
  • 收稿日期:  2018-07-26
  • 修回日期:  2019-01-04
  • 网络出版日期:  2021-04-21
  • 刊出日期:  2019-07-25

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