Global Calculations of Local and Remote Near-Inertial-Wave Dissipation

MATTHEW H. ALFORD

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Global Calculations of Local and Remote Near-Inertial-Wave Dissipation

机译：局部和远程近惯性波耗散的全局计算

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Global estimates are presented of the fraction q of wind-generated near-inertial wave power available for local turbulent dissipation under the assumption that modes 1-3 propagate "far" and the higher modes remain to eventually break. Using climatological stratification profiles and mixed layer depth, the modal distribution of near-inertial energy flux is computed following Gill's classic 1984 work by projecting a slab flow in the mixed layer onto the dynamical modes. Global maps and zonal-mean profiles are presented, which show a global-mean value of q = 0.63 and 0.75 for winter and summer profiles, respectively. The simplicity of the calculation makes it of potential use in parameterizations of near-inertial breaking in climate simulations.

机译：全局估计显示出风力产生的近惯性波功率的分数Q可用于局部湍流耗散，假设模式1-3传播“远”，较高的模式仍然最终破裂。使用气候分层型和混合层深度，通过将混合层中的板坯流突出到动态模式下，在吉尔经典的1984工作之后计算近乎惯性能量通量的模态分布。呈现了全局地图和私人均值曲线，分别显示冬季和夏季剖面的全局平均值Q = 0.63和0.75。计算的简单性使得它在气候模拟中近乎惯性突破的参数化潜在使用。

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来源
《Journal of Physical Oceanography》 |2020年第11期|3157-3164|共8页
作者
MATTHEW H. ALFORD;
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作者单位

Scripps Institution of Oceanography University of California San Diego La Jolla California;

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正文语种 eng
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Internal waves;

机译：内部波;

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Global Calculations of Local and Remote Near-Inertial-Wave Dissipation

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