气候变化领域集成服务门户(CCPortal): On the Thermal Signature of the Residual Foam in Breaking Waves

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DOI	10.1029/2020JC016511
	On the Thermal Signature of the Residual Foam in Breaking Waves
	Masnadi N.; Chickadel C.C.; Jessup A.T.
发表日期	2021
ISSN	21699275
卷号	126 期号:1
英文摘要	Quantifying energy dissipation due to wave breaking remains an essential but elusive goal for studying and modeling air-sea fluxes of heat, gas, and momentum. Previous observations have shown that lifetimes of bubble plumes and surface foam are directly related to the dissipated energy. Specifically, the foam decay time can be used to estimate the timescale of the subsurface bubble plume and the energy dissipated in the breaking process. A mitigating factor is that the foam decay time can be significantly affected by the surfactant concentration. Here we present an experimental investigation of a new technique that exploits the thermal signature of cooling foam to infer wave breaking dynamics. The experiments were conducted in a laboratory wave tank using artificial seawater with and without the addition of a surfactant. We show that the time from the start of the breaking process to the onset of cooling scales with the bubble plume decay time and the dissipated energy, and is not significantly affected by the presence of additional surfactants. We confirm observations from the field of the spatial variability of the temperature of foam generated by an individual breaking event, which has implications for inferring the spatial variability of bubble plume depth. © 2020. Journal of Geophysical Research: Oceans. All Rights Reserved.
英文关键词	breaking waves; bubbles; foam; infrared; oceanic whitecap; remote sensing
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/186521
作者单位	Applied Physics Laboratory, University of Washington, Seattle, WA, United States
推荐引用方式 GB/T 7714	Masnadi N.,Chickadel C.C.,Jessup A.T.. On the Thermal Signature of the Residual Foam in Breaking Waves[J],2021,126(1).
APA	Masnadi N.,Chickadel C.C.,&Jessup A.T..(2021).On the Thermal Signature of the Residual Foam in Breaking Waves.Journal of Geophysical Research: Oceans,126(1).
MLA	Masnadi N.,et al."On the Thermal Signature of the Residual Foam in Breaking Waves".Journal of Geophysical Research: Oceans 126.1(2021).