DOI: 10.1002/2016GL068032
论文题名: Insights from a 3-D temperature sensors mooring on stratified ocean turbulence
作者: Van Haren H. ; Cimatoribus A.A. ; Cyr F. ; Gostiaux L.
刊名: Geophysical Research Letters
ISSN: 0094-9055
EISSN: 1944-8786
出版年: 2016
卷: 43, 期: 9 起始页码: 4483
结束页码: 4489
语种: 英语
英文关键词: 3-D mooring
; deep-ocean bottom boundaries
; high-resolution temperature sensors
; stratified turbulence
Scopus关键词: Aspect ratio
; Liquid waves
; Mooring
; Temperature sensors
; Tidal power
; Turbulence
; Buoyancy frequency
; Deep ocean
; High resolution
; Higher frequencies
; Internal wave breaking
; Quantitative study
; Stratified turbulence
; Turbulence spectrum
; Oceanography
英文摘要: A unique small-scale 3-D mooring array has been designed consisting of five parallel lines, 100 m long and 4 m apart, and holding up to 550 high-resolution temperature sensors. It is built for quantitative studies on the evolution of stratified turbulence by internal wave breaking in geophysical flows at scales which go beyond that of a laboratory. Here we present measurements from above a steep slope of Mount Josephine, NE Atlantic where internal wave breaking occurs regularly. Vertical and horizontal coherence spectra show an aspect ratio of 0.25-0.5 near the buoyancy frequency, evidencing anisotropy. At higher frequencies, the transition to isotropy (aspect ratio of 1) is found within the inertial subrange. Above the continuous turbulence spectrum in this subrange, isolated peaks are visible that locally increase the spectral width, in contrast with open ocean spectra. Their energy levels are found to be proportional to the tidal energy level. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84970027633&doi=10.1002%2f2016GL068032&partnerID=40&md5=9b10f0b328aca123677d75fbbc07d906
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10018
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: NIOZ Royal Netherlands Institute for Sea Research, Utrecht University, Den Burg, Netherlands
Recommended Citation:
Van Haren H.,Cimatoribus A.A.,Cyr F.,et al. Insights from a 3-D temperature sensors mooring on stratified ocean turbulence[J]. Geophysical Research Letters,2016-01-01,43(9).