气候变化领域集成服务门户(CCPortal): Ice Breakup Controls Dissipation of Wind Waves Across Southern Ocean Sea Ice

CCPortal

DOI	10.1029/2020GL087699
	Ice Breakup Controls Dissipation of Wind Waves Across Southern Ocean Sea Ice
	Ardhuin F.; Otero M.; Merrifield S.; Grouazel A.; Terrill E.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:13
英文摘要	Sea ice inhibits the development of wind-generated surface gravity waves which are the dominant factor in upper ocean mixing and air-sea fluxes. In turn, sea ice properties are modified by wave action. Understanding the interaction of ice and waves is important for characterizing both air-sea interactions and sea ice dynamics. Current leading theory attributes wave attenuation primarily to scattering by ice floes. Here we use new in situ wave measurements to show that attenuation is dominated by dissipation with negligible effect by scattering. Time series of wave height in ice exhibit an “on/off” behavior that is consistent with switching between two states of sea ice: a relatively unbroken state associated with strong damping (off), possibly caused by ice flexure, and very weak attenuation (on) across sea ice that has been broken up by wave action. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Gravity waves; Air sea interactions; Dominant factor; Sea ice dynamics; Southern ocean; Strong damping; Surface gravity waves; Wave attenuation; Wave measurement; Sea ice; air-sea interaction; energy dissipation; gravity wave; ice breakup; mixing; sea ice; upper ocean; wave action; wind wave; Southern Ocean
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170177
作者单位	Scripps Institution of Oceanography, La Jolla, CA, United States; Univ. Brest, CNRS, IRD, Ifremer, Laboratoire d'Océanographie Physique et Spatiale (LOPS), IUEM, Brest, France
推荐引用方式 GB/T 7714	Ardhuin F.,Otero M.,Merrifield S.,et al. Ice Breakup Controls Dissipation of Wind Waves Across Southern Ocean Sea Ice[J],2020,47(13).
APA	Ardhuin F.,Otero M.,Merrifield S.,Grouazel A.,&Terrill E..(2020).Ice Breakup Controls Dissipation of Wind Waves Across Southern Ocean Sea Ice.Geophysical Research Letters,47(13).
MLA	Ardhuin F.,et al."Ice Breakup Controls Dissipation of Wind Waves Across Southern Ocean Sea Ice".Geophysical Research Letters 47.13(2020).