论文标题

经过修订的强风中海面阻力的估计值

Revised Estimates of Ocean Surface Drag in Strong Winds

论文作者

Curcic, Milan, Haus, Brian K.

论文摘要

空气阻力控制着大气和海洋之间的动量转移,并且在飓风中仍然很少知道。我们重新审视动量预算和涡流方法,以估计实验室中的表面阻力系数。我们的阻力估计与低到中度风的野外测量以及飓风风中的实验室测量一致。阻力系数以$ 2.6 \ times 10^{ - 3} $和$ u_ {10} \大约25 \ m \ s^{ - 1} $饱和,与Takagaki等人的先前实验室结果一致。 (2012年)。在分析过程中,我们发现了Donelan等人使用的原始源代码中的错误。 (2004)。我们介绍校正的数据并描述校正程序。尽管对数据的校正并没有改变强风中阻力饱和度的关键发现,但其幅度和风速阈值显着改变。我们的发现强调了基于字段和实验室数据更新和统一的拖动参数化的需求。

Air-sea drag governs the momentum transfer between the atmosphere and the ocean, and remains largely unknown in hurricane winds. We revisit the momentum budget and eddy-covariance methods to estimate the surface drag coefficient in the laboratory. Our drag estimates agree with field measurements in low-to-moderate winds, and previous laboratory measurements in hurricane-force winds. The drag coefficient saturates at $2.6 \times 10^{-3}$ and $U_{10} \approx 25\ m\ s^{-1}$, in agreement with previous laboratory results by Takagaki et al. (2012). During our analysis, we discovered an error in the original source code used by Donelan et al. (2004). We present the corrected data and describe the correction procedure. Although the correction to the data does not change the key finding of drag saturation in strong winds, its magnitude and wind speed threshold are significantly changed. Our findings emphasize the need for an updated and unified drag parameterization based on field and laboratory data.

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