DOI: 10.1002/2014GL062583
论文题名: Incoherent signature of internal tides on sea level in idealized numerical simulations
作者: Ponte A.L. ; Klein P.
刊名: Geophysical Research Letters
ISSN: 0094-8927
EISSN: 1944-8658
出版年: 2015
卷: 42, 期: 5 起始页码: 1520
结束页码: 1526
语种: 英语
英文关键词: incoherence
; internal tide
; mesoscale turbulence
; wide-swath altimetry
Scopus关键词: Numerical models
; Sea level
; Turbulence
; Incoherence
; Interference patterns
; Internal tides
; Mesoscale
; Mesoscale eddy fields
; Numerical experiments
; Phase relationships
; Wide swath
; Tides
; astronomy
; eddy covariance
; internal tide
; numerical model
; satellite altimetry
; sea level change
; swath bathymetry
英文摘要: The nonpersistent phase relationship between internal tides and astronomical forcings, also known as incoherence, has been identified as a major question in the context of future wide-swath satellite altimetry. This study addresses this issue using a novel set of numerical experiments where a plane wave/low-mode internal tide propagates through a turbulent mesoscale eddy field. These experiments demonstrate the emergence of internal tide incoherence as the eddy turbulence is strengthened. In strongly turbulent situations, the internal tide signature on sea level forms complex interference patterns with large amplifications of the initial internal wave. These patterns evolve more rapidly than the signature of the turbulent eddy field on sea level. The implications of such idealized numerical simulations for wide-swath altimetry are discussed. © 2015. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84925870067&doi=10.1002%2f2014GL062583&partnerID=40&md5=08266cbd1ed2aa8073f6550750cd0dbc
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8543
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: Laboratoire de Physique des Océans, IFREMER-CNRS-IRD-UBO, Plouzané, France
Recommended Citation:
Ponte A.L.,Klein P.. Incoherent signature of internal tides on sea level in idealized numerical simulations[J]. Geophysical Research Letters,2015-01-01,42(5).