气候变化领域集成服务门户(CCPortal): Wave-Driven Flow Along a Compact Marginal Ice Zone

CCPortal

DOI	10.1029/2020GL090735
	Wave-Driven Flow Along a Compact Marginal Ice Zone
	Thomson J.; Lund B.; Hargrove J.; Smith M.M.; Horstmann J.; MacKinnon J.A.
发表日期	2021
ISSN	0094-8276
卷号	48 期号:3
英文摘要	Observations of surface waves and ice drift along a compact sea ice edge demonstrate the importance of waves in a marginal ice zone. An analytic model is presented for the along-ice drift forced by the radiation stress gradient of oblique waves. A momentum balance using quadratic drag to oppose the wave forcing is sufficient to explain the observations. Lateral shear stresses in the ice are also evaluated, though this balance does not match the observations as well. Additional forcing by local winds is included and is small relative to the wave forcing. However, the wave forcing is isolated to a narrow region around 500-m wide, whereas the wind forcing has effects on larger scales. The simplistic drag is assessed using observations of shear and turbulent dissipation rates. The results have implications for the shape and evolution of the ice edge, because the lateral shear may be a source of instabilities. © 2021. The Authors.
英文关键词	Drag; Sea ice; Shear stress; Analytic modeling; Lateral shear; Marginal Ice Zone; Momentum balances; Radiation stress; Sea-ice edge; Source of instability; Turbulent dissipation rates; Surface waves
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/169144
作者单位	Applied Physics Laboratory, University of Washington, Seattle, WA, United States; CSTARS, University of Miami, Miami, FL, United States; Helmholtz Zentrum Geesthacht, Geesthacht, Germany; Scripps Institution of Oceanography, UCSD, La Jolla, CA, United States
推荐引用方式 GB/T 7714	Thomson J.,Lund B.,Hargrove J.,et al. Wave-Driven Flow Along a Compact Marginal Ice Zone[J],2021,48(3).
APA	Thomson J.,Lund B.,Hargrove J.,Smith M.M.,Horstmann J.,&MacKinnon J.A..(2021).Wave-Driven Flow Along a Compact Marginal Ice Zone.Geophysical Research Letters,48(3).
MLA	Thomson J.,et al."Wave-Driven Flow Along a Compact Marginal Ice Zone".Geophysical Research Letters 48.3(2021).