DOI: 10.1002/grl.50418
论文题名: Power spectra of infragravity waves in a deep ocean
作者: Godin O.A. ; Zabotin N.A. ; Sheehan A.F. ; Yang Z. ; Collins J.A.
刊名: Geophysical Research Letters
ISSN: 0094-9040
EISSN: 1944-8771
出版年: 2013
卷: 40, 期: 10 起始页码: 2159
结束页码: 2165
语种: 英语
英文关键词: deep ocean
; random wave fields
; Surface gravity waves
; wave spectra
Scopus关键词: Deep ocean
; Dimensional analysis
; Infra-gravity waves
; Quantitative information
; Random wave fields
; Surface gravity waves
; Universal properties
; Wave spectra
; Earth atmosphere
; Gravity waves
; Water waves
; Power spectrum
; atmosphere-ocean coupling
; bathymetry
; data set
; deep sea
; energy efficiency
; frequency analysis
; ice-ocean interaction
; seafloor
; spatial distribution
; spectrum
; water depth
; wave field
; New Zealand
; South Island
英文摘要: Infragravity waves (IGWs) play an important role in coupling wave processes in the ocean, ice shelves, atmosphere, and the solid Earth. Due to the paucity of experimental data, little quantitative information is available about power spectra of IGWs away from the shore. Here we use continuous, yearlong records of pressure at 28 locations on the seafloor off New Zealand's South Island to investigate spectral and spatial distribution of IGW energy. Dimensional analysis of diffuse IGW fields reveals universal properties of the power spectra observed at different water depths and leads to a simple, predictive model of the IGW spectra. While sources of IGWs off New Zealand are found to have a flat power spectrum, the IGW energy density has a pronounced dependence on frequency and local water depth as a result of the interaction of the waves with varying bathymetry. © 2013 American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879908345&doi=10.1002%2fgrl.50418&partnerID=40&md5=4e5d8b83829b0edd3958c525084ee671
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6304
Appears in Collections: 气候减缓与适应
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作者单位: Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States
Recommended Citation:
Godin O.A.,Zabotin N.A.,Sheehan A.F.,et al. Power spectra of infragravity waves in a deep ocean[J]. Geophysical Research Letters,2013-01-01,40(10).