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Momentum and heat transfer across the foam-covered air-sea interface in hurricanes
Ocean Dynamics ( IF 2.2 ) Pub Date : 2020-03-26 , DOI: 10.1007/s10236-020-01360-w
Ephim Golbraikh , Yuri M. Shtemler

Procedures of formal averaging over the air-sea interface are applied to both momentum and enthalpy surface-transfer coefficients, CD and CK, in hurricane conditions. The transfer coefficients across the total area of the sea surface and water-covered portions of the sea surface, CD, CK, and CDw, CKw, are estimated by measurements in the open-sea and laboratory (foam-free) conditions, respectively, while the transfer coefficients across the foam-covered portion of the sea surface, CDf, Kf, which cannot be measured directly, are estimated using the splitting relations. Applying the Monin-Obukhov similarity theory at the neutral stability atmospheric conditions to the transfer coefficients (separately for the foam-free, foam-covered, and total sea surfaces) yields the roughness lengths ZDwZKw, ZDfZKf, and ZD, ZK. The study is aimed at the description of an anomalous, as compared with laboratory conditions, behavior of the momentum and enthalpy transfer coefficients in hurricane conditions with wind speed U10 by the effect of the foam slipping layer sandwiched between the atmosphere and the ocean.

中文翻译:

飓风中穿过泡沫覆盖的海气界面的动量和热传递

在飓风条件下,对海气界面进行形式平均的程序适用于动量和焓的表面传递系数C DC K。通过在公海和实验室(无泡沫)的测量值估算出海面总面积和海面积水部分的传递系数C DC KC DwC Kw。条件,而跨海表层泡沫覆盖部分的传递系数C DfKf不能直接测量的,使用分裂关系进行估算。将莫宁-奥布霍夫相似性理论在中性稳定大气条件下应用于传递系数(分别针对无泡沫,覆有泡沫和总海面使用)得出粗糙度长度Z Dw,  Z KwZ Df,  Z Kf,和ž dž ķ。该研究旨在描述与实验室条件相比异常的情况,在风速为U 10的飓风条件下,动量和焓传递系数的行为 通过夹在大气和海洋之间的泡沫滑脱层的作用。
更新日期:2020-03-26
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