| 摘要: |
| 为了克服基于两层海洋的内孤立波SAR遥感仿真模型的缺陷, 使用基于连续分层海洋模型的 GK-dV 方程, 在南海东北部深水海域进行了大振幅内孤立波传播模拟, 模拟输出内孤立波振幅91.0 m, 半波宽度 262.0 m。 然后使用新建立的基于连续分层海洋模型的内孤立波 SAR 遥感仿真模型进行了内孤立波反演, 反演出内孤立波半波宽度 251.5 m, 相对输入误差为 4.0%, 比旧模型的 34.2%有了较大改进。 |
| 关键词: SAR 遥感, 内孤立波, 连续分层海洋模型, 半波宽度, 南海 |
| DOI：10.11693/hyhz201106025025 |
| 分类号: |
| 基金项目:国家自然科学基金项目, 40706055 号 |
附件 |
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| SIMULATION OF SAR SIGNATURES OF LARGE-AMPLITUDE INTERNAL SOLITARY WAVES IN THE DEEP SEA IN THE NORTHEAST SOUTH CHINA SEA |
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SHI Xin-Gang1, FAN Zhi-Song2, SI Zong-Shang2
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1.Beijing branch of CNOOC Energy Technology & Services Limited;2.College of Physical and Environmental Oceanography, Ocean University of China
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| Abstract: |
| In order to improve the simulation results of the SAR (Synthetic aperture radar) signatures on the basis of two-layer oceanic model, the simulation of the propagation of the large-amplitude internal solitary waves in the deep northeast South China Sea was made based on a continuous stratified oceanic model using the GK-dV equation, the simulation results of the amplitude and half-width of internal solitary wave were 91.0 m, 262.0 m respectively. The simulation of the SAR signatures of the large-amplitude internal solitary waves was also made, the simulation of half-width is 251.5 m, relative error was only 4.0%, far less than the relative error of 34.2% based on the traditional model. |
| Key words: SAR remote sensing, Internal solitary waves, Continuous stratified oceanic model, Half width, South China Sea |
