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Local balance in the air-sea boundary processes

机译：海洋边界流程中的地方平衡

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A combination of the three-second power law, presented in part I for wind waves of simple spectrum, and the similarity of the spectral form of wind waves, leads to a new concept on the energy spectrum of wind waves. It is well substantiated by data from a wind-wave tunnel experiment.In the gravity wave range, the gross form of the high frequency side of the spectrum is proportional tog u*σ?4, whereg represents the acceleration of gravity,u* the friction velocity,σ the angular frequency, and the factor of proportionality is 2.0×l0?2. The wind waves grow in such a way that the spectrum slides up, keeping its similar form, along the line of the gross form, on the logarithmic diagram of the spectral density,Φ, versusσ. Also, the terminal value ofΦ, at the peak frequency of the fully developed sea, is along a line of the gradient ofg2σ?5.The fine structure of the spectrum from the wind-wave tunnel experiment shows a characteristic form oscillating around theσ?4-line. The excess of the energy density concentrates around the peak frequency and the second- and the third-order harmonics, and the deficit occurs in the middle of these frequencies. This form of the fine structure is always similar in the gravity wave range, in purely controlled conditions such as in a wind-wave tunnel. Moving averages of these spectra tend very close to the form proportional toσ?5.As the wave number becomes large, the effect of surface tension is incorporated, and theσ?4-line in the gravity wave range gradually continues to aσ?8/3-line in the capillary wave range, in accordance with the wind-wave tunnel data. Likewise, theσ?5-line gradually continues to aσ?7/3-line.Also, through a discussion on these results, is suggested the existence of a kind of general similarity in the structure of wind wave field.
机译：三秒电权律的组合在I部分I的简单频谱的风波中，以及风波的光谱形式的相似性，导致风波能谱的新概念。从风波隧道实验中的数据很好地证实。在重力波范围内，光谱的高频侧的毛坯形式是比例的达格u *σ≤4，其中代表了重力的加速度，U *该摩擦速度，σ角频率，比例因子是2.0×L0？2。风波以这样的方式生长，即频谱滑动，沿着粗略形式的线路保持相似的形式，在光谱密度，φ，与σ的对数图上。此外，在完全发达的海的峰值频率的Φ的终端值沿着梯度的梯度线Δ5。来自风波隧道实验的光谱的精细结构显示出脉冲周围的特征形式φ4 -线。能量密度的过量集中在峰值频率和第二次和三阶次次谐波周围，并且在这些频率的中间发生缺陷。这种形式的细结构在重力波范围内始终相似，在纯粹控制的条件下，例如风波隧道。这些光谱的移动平均值倾向于非常接近与比例的形式比例为σΔ5.As波数变大，结合了表面张力的效果，并且在重力波范围内的σ≤4线逐渐持续到Aσ8/3 - 根据风波隧道数据在毛细波范围内。同样地，σ≤v线逐渐继续到Aσω7/ 3线。通过讨论这些结果，建议存在风波场的结构中的一种通用相似性。

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  • 来源
    《日本海洋学会誌》 |1973年第5期|共12页
  • 作者

    Yoshiaki Toba;

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  • 收录信息 美国《科学引文索引》(SCI);
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