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首页> 外文会议>25th International Conference on Offshore Mechanics and Arctic Engineering 2006(OMAE2006) vol.2: Ocean Engineering; Polar and Arctic Sciences and Technology >DETECTING INTERNAL WAVES FROM SATELLITE OCEAN COLOR IMAGERY
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DETECTING INTERNAL WAVES FROM SATELLITE OCEAN COLOR IMAGERY

机译：从卫星海洋彩色图像中检测内部波

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Internal waves have been observed by lots of high resolution satellite images, such as Synthetic Aperture Radar (SAR) and optical images of SPOT and Landsat. These images are usually expensive. In this study, some free but lower spatial resolution satellite images are applied to observe the internal wave phenomena. The internal waves in the Sulu Sea are detected from the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) onboard the Orbview-2 satellite. The SeaWiFS image has a spatial resolution of 1.1 km. It is acceptable to observe the internal wave phenomena while the soliton width is larger than the image resolution. The results show that the internal solitary in the Sulu Sea can be observed successfully with SeaWiFS chlorophyll images. The internal waves in the Sulu Sea have amplitudes of 10 to 90 m and wavelengths of 5 to 16 km. The large-amplitude internal solitary waves may significantly influence the near-surface chlorophyll concentration. The chlorophyll concentration would be lower when the depression internal waves passed through. A theoretic model is proposed and tested to estimate the amplitudes of internal waves from chlorophyll concentration images.
机译：许多高分辨率卫星图像（例如合成孔径雷达（SAR）以及SPOT和Landsat的光学图像）都观察到了内部波。这些图像通常很昂贵。在这项研究中，一些免费但空间分辨率较低的卫星图像被用于观察内部波现象。苏鲁海中的内部波是从Orbview-2卫星上的海景宽视野传感器（SeaWiFS）中检测到的。 SeaWiFS图像的空间分辨率为1.1 km。当孤子宽度大于图像分辨率时，观察内部波现象是可以接受的。结果表明，通过SeaWiFS叶绿素图像可以成功地观察到苏禄海的内部孤立。苏禄海的内波振幅为10至90 m，波长为5至16 km。大振幅内部孤立波可能会显着影响近地表叶绿素浓度。当凹陷内波通过时，叶绿素浓度会降低。提出并测试了一个理论模型，以从叶绿素浓度图像估算内部波的振幅。

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