DOI: 10.1002/2016GL068204
论文题名: Ocean waves across the Arctic: Attenuation due to dissipation dominates over scattering for periods longer than 19 s
作者: Ardhuin F. ; Sutherland P. ; Doble M. ; Wadhams P.
刊名: Geophysical Research Letters
ISSN: 0094-8970
EISSN: 1944-8701
出版年: 2016
卷: 43, 期: 11 起始页码: 5775
结束页码: 5783
语种: 英语
英文关键词: DAMOCLES
; ocean waves
; sea ice
; Tara
Scopus关键词: Boundary layers
; Ice
; Laminar boundary layer
; Oceanography
; Sea ice
; Surface waves
; Wave energy conversion
; Attenuation of surface waves
; DAMOCLES
; Directional spreading
; Directional wave spectrum
; Dissipation rates
; Spectral wave models
; Tara
; Temporal distribution
; Water waves
英文摘要: The poorly understood attenuation of surface waves in sea ice is generally attributed to the combination of scattering and dissipation. Scattering and dissipation have very different effects on the directional and temporal distribution of wave energy, making it possible to better understand their relative importance by analysis of swell directional spreading and arrival times. Here we compare results of a spectral wave model—using adjustable scattering and dissipation attenuation formulations—with wave measurements far inside the ice pack. In this case, scattering plays a negligible role in the attenuation of long swells. Specifically, scattering-dominated attenuation would produce directional wave spectra much broader than the ones recorded, and swell events arriving later and lasting much longer than observed. Details of the dissipation process remain uncertain. Average dissipation rates are consistent with creep effects but are 12 times those expected for a laminar boundary layer under a smooth solid ice plate. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84977108785&doi=10.1002%2f2016GL068204&partnerID=40&md5=9fcbbbb0be7a796f1386b41f49d79099
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9933
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: University Brest, CNRS, IRD, Ifremer, Laboratoire d'Océanographie Physique et Spatiale (LOPS), IUEM, Brest, France
Recommended Citation:
Ardhuin F.,Sutherland P.,Doble M.,et al. Ocean waves across the Arctic: Attenuation due to dissipation dominates over scattering for periods longer than 19 s[J]. Geophysical Research Letters,2016-01-01,43(11).