气候变化领域集成服务门户(CCPortal): The Impact of Nonbreaking Waves on Wind-Driven Ocean Surface Turbulence

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DOI	10.1029/2019JC015573
	The Impact of Nonbreaking Waves on Wind-Driven Ocean Surface Turbulence
	Savelyev I.B.; Buckley M.P.; Haus B.K.
发表日期	2020
ISSN	21699275
卷号	125 期号:1
英文摘要	A comprehensive study on the properties of upper ocean turbulence and its response to a variety of wind and wave forcing conditions was conducted at the Surge Structure Atmosphere INteraction (SUSTAIN) facility, University of Miami, RSMAS. The dimensions of SUSTAIN wind-wave-current tunnel are 18 m long, 6 m wide, and 2 m high, uniquely allowing for freely forming turbulence unconstrained by side walls. The grid of input parameters covered a range of wave steepness (ak: 0–0.27) within each investigated wind speed (U10: 2–20 m/s), allowing for the isolation of wave effects on the turbulence driven by both wind and waves. The response of turbulence to each pair of wind-wave parameters was measured in steady-state conditions (after 20+ min of settling time) by a suite of nonintrusive turbulence visualization techniques, located at 10 m fetch. These included 3-D visualization of water tracing dye entrainment by turbulence, underwater particle image velocimetry, and passive and active thermal imagery resolving surface skin temperature and velocity fluctuations. The resulting data set includes both qualitative 3-D view of subsurface turbulent structures and precise quantitative turbulent kinetic energy (TKE) measurements mapped out in response to the grid of input parameters. In lower winds, TKE was found to grow substantially in response to increasing wave steepness, in line with the expected effect of increasing wave forcing. However, in higher winds the effect of increasing wave steepness on TKE was found to be negative. It is hypothesized to be due to the rise of airflow separation, effectively sheltering much of the water surface from turbulence production by wind friction. © 2020. American Geophysical Union. All Rights Reserved.
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187021
作者单位	Remote Sensing Division, US Naval Research Lab, Washington, DC, United States; Institute of Coastal Research, Helmholtz Centre Geesthacht, Geesthacht, Germany; Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, United States
推荐引用方式 GB/T 7714	Savelyev I.B.,Buckley M.P.,Haus B.K.. The Impact of Nonbreaking Waves on Wind-Driven Ocean Surface Turbulence[J],2020,125(1).
APA	Savelyev I.B.,Buckley M.P.,&Haus B.K..(2020).The Impact of Nonbreaking Waves on Wind-Driven Ocean Surface Turbulence.Journal of Geophysical Research: Oceans,125(1).
MLA	Savelyev I.B.,et al."The Impact of Nonbreaking Waves on Wind-Driven Ocean Surface Turbulence".Journal of Geophysical Research: Oceans 125.1(2020).