DOI: 10.1002/2015GL063365
论文题名: Toward an internal gravity wave spectrum in global ocean models
作者: Müller M. ; Arbic B.K. ; Richman J.G. ; Shriver J.F. ; Kunze E.L. ; Scott R.B. ; Wallcraft A.J. ; Zamudio L.
刊名: Geophysical Research Letters
ISSN: 0094-9273
EISSN: 1944-9004
出版年: 2015
卷: 42, 期: 9 起始页码: 3474
结束页码: 3481
语种: 英语
英文关键词: Garrett Munk spectrum
; global ocean models
; internal tides
; internal waves
; nonlinear interactions
Scopus关键词: Energy transfer
; Gravity waves
; Kinetic energy
; Kinetics
; Spectroscopy
; Tidal power
; Tides
; Garrett Munk spectrum
; Global ocean model
; Internal tides
; Internal waves
; Nonlinear interactions
; Oceanography
; global ocean
; kinetic energy
; nonlinearity
; ocean wave
; simulation
; wave spectrum
; wave-wave interaction
; Pacific Ocean
; Pacific Ocean (North)
英文摘要: High-resolution global ocean models forced by atmospheric fields and tides are beginning to display realistic internal gravity wave spectra, especially as model resolution increases. This paper examines internal waves in global simulations with 0.08° and 0.04° (∼8 and 4km) horizontal resolutions, respectively. Frequency spectra of internal wave horizontal kinetic energy in the North Pacific lie closer to observations in the 0.04° simulation than in the 0.08° simulation. The horizontal wave number and frequency (K-ω) kinetic energy spectra contain peaks in the semidiurnal tidal band and near-inertial band, along with a broadband frequency continuum aligned along the linear dispersion relations of low-vertical-mode internal waves. Spectral kinetic energy transfers describe the rate at which nonlinear mechanisms remove or supply kinetic energy in specific K-ω ranges. Energy is transferred out of low-mode inertial and semidiurnal internal waves into a broad continuum of higher-frequency and higher-wave number internal waves. Key Points Representation of internal gravity wave spectra in OGCMs Spectral internal gravity wave kinetic energy and nonlinear energy transfers Nonlinear internal wave-wave interactions in the wave number frequency domain ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84930481421&doi=10.1002%2f2015GL063365&partnerID=40&md5=121ec519132d049d85a41c409c04331c
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8889
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: School of Earth and Ocean Sciences, University of Victoria, Victoria, BC, Canada
Recommended Citation:
Müller M.,Arbic B.K.,Richman J.G.,et al. Toward an internal gravity wave spectrum in global ocean models[J]. Geophysical Research Letters,2015-01-01,42(9).