气候变化领域集成服务门户(CCPortal): Attenuation of Ocean Surface Waves in Pancake and Frazil Sea Ice Along the Coast of the Chukchi Sea

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DOI	10.1029/2020JC016746
	Attenuation of Ocean Surface Waves in Pancake and Frazil Sea Ice Along the Coast of the Chukchi Sea
	Hošeková L.; Malila M.P.; Rogers W.E.; Roach L.A.; Eidam E.; Rainville L.; Kumar N.; Thomson J.
发表日期	2020
ISSN	21699275
卷号	125 期号:12
英文摘要	Alaskan Arctic coastlines are protected seasonally from ocean waves by the presence of coastal and shorefast sea ice. This study presents field observations collected during the autumn 2019 freeze up near Icy Cape, a coastal headland in the Chukchi Sea of the Western Arctic. The evolution of the coupled air-ice-ocean-wave system during a 4-day wave event was monitored using drifting wave buoys, a cross-shore mooring array, and ship-based measurements. The incident wavefield with peak period of 2.5 s was attenuated by coastal pancake and frazil sea ice, reducing significant wave height by 40% over less than 5 km of cross-shelf distance spanning water depths from 13 to 30 m. Spectral attenuation coefficients are evaluated with respect to wave and ice conditions and the proximity to the ice edge. Attenuation rates are found to be three times higher within 500 m of the ice edge, relative to values farther in the ice cover. Attenuation coefficients are in the range of 〈2.3, 2.7〉x10-3 m−1, and follow a power-law dependence on frequency. © 2020. The Authors.
英文关键词	Arctic; coastal; ocean waves; sea ice
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/186565
作者单位	Applied Physics Laboratory, University of Washington, Seattle, WA, United States; Department of Meteorology, University of Reading, Reading, United Kingdom; Norwegian Meteorological Institute, Bergen, Norway; Department of Civil and Environmental Engineering, University of Washington, Seattle, United States; Naval Research Laboratory, Stennis Space Center, MS, United States; Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States; Department of Marine Sciences, University of North Carolina, Chapel Hill, NC, United States
推荐引用方式 GB/T 7714	Hošeková L.,Malila M.P.,Rogers W.E.,et al. Attenuation of Ocean Surface Waves in Pancake and Frazil Sea Ice Along the Coast of the Chukchi Sea[J],2020,125(12).
APA	Hošeková L..,Malila M.P..,Rogers W.E..,Roach L.A..,Eidam E..,...&Thomson J..(2020).Attenuation of Ocean Surface Waves in Pancake and Frazil Sea Ice Along the Coast of the Chukchi Sea.Journal of Geophysical Research: Oceans,125(12).
MLA	Hošeková L.,et al."Attenuation of Ocean Surface Waves in Pancake and Frazil Sea Ice Along the Coast of the Chukchi Sea".Journal of Geophysical Research: Oceans 125.12(2020).