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Observation of the disturbances occurring in a discontinuity layer of Lake Biwa-Ko

机译:观察Biwa-Ko湖不连续层中发生的干扰

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Short-period temperature fluctuations were observed in the uppermost region of the seasonal thermocline in Lake Biwa-Ko, under the existence of the strong wind-stirring. In the observation period, the temperature profile had a sharp discontinuity at the bottom of the surface mixed layer, and a large gradient in the discontinuity layer of about 2-m thickness. The most dominant disturbances occurred in the discontinuity layer had the period of 2 to 3 minutes and the amplitude of about 1 m. They occurred intermittently with 5-to 15-minute intervals, and the growth and decay cycles were repeated locally. On the basis of these results, it is suggested that they were caused by the shear instability, and that such disturbances may control the erosion process of the seasonal thermocline.
机译:在Biwa-ko湖季节性热量下端的最上部区域观察到短周期温度波动,在强风搅拌下的存在下。在观察期间,温度曲线在表面混合层的底部具有急剧的不连续性,并且在约2-m的不连续层中具有大的梯度。不连续层中最大的紊乱的时间为2至3分钟,幅度约为1米。它们间歇地发生在5至15分钟的间隔,并且在本地重复生长和衰减循环。在这些结果的基础上,建议它们是由剪切不稳定性引起的,并且这种干扰可以控制季节性热液的腐蚀过程。

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  • 来源
    《日本海洋学会誌》 |1973年第5期|共6页
  • 作者

    Kuniaki Okuda;

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  • 收录信息 美国《科学引文索引》(SCI);
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