DOI: 10.1002/2015GL063973
论文题名: Emergence of short crestedness in originally unidirectional nonlinear waves
作者: De Pinho U.F. ; Babanin A.V.
刊名: Geophysical Research Letters
ISSN: 0094-9125
EISSN: 1944-8856
出版年: 2015
卷: 42, 期: 10 起始页码: 4110
结束页码: 4115
语种: 英语
英文关键词: crest modulation
; nonlinear waves
; short crestedness
Scopus关键词: Modulation
; Oceanography
; Wave propagation
; Cross modulations
; Directional properties
; Lateral instability
; Nonlinear effect
; Nonlinear waves
; short crestedness
; Unidirectional waves
; Wave propagation direction
; Water waves
; nonlinear wave
; ocean wave
; wave propagation
; wavelength
; wind direction
英文摘要: Ocean waves forced by the wind are multidirectional, even if the wind direction is steady. Directionality can occur due to superposition of long-crested waves propagating at angle to each other. Lateral modulation of the wave crests, however, also takes place for strictly unidirectional waves, due to nonlinear effects. Here short crestedness of unidirectional waves is investigated. A series of experiments on the lateral instability of monochromatic, deep water, unidirectional, initially long-crested steep waves was performed in a large wave basin. The cross modulation of wave crests is clearly visible; its magnitude depends on the wave steepness in the wave propagation direction. Its spatial scale is comparable with the wavelength. Thus, short crestedness is an inherent feature of nonlinear waves and should be taken into account when estimating directional properties of ocean waves. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84931379729&doi=10.1002%2f2015GL063973&partnerID=40&md5=e29992c9d51adfc1e6b95829993caf61
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8741
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: Naval and Ocean Engineering Department, Rio de Janeiro Federal University, Rio de Janeiro, Brazil
Recommended Citation:
De Pinho U.F.,Babanin A.V.. Emergence of short crestedness in originally unidirectional nonlinear waves[J]. Geophysical Research Letters,2015-01-01,42(10).