DOI: 10.1002/2014GL062720
论文题名: Topographic influence on submesoscale dynamics in the Southern Ocean
作者: Rosso I. ; Hogg A.M. ; Kiss A.E. ; Gayen B.
刊名: Geophysical Research Letters
ISSN: 0094-8940
EISSN: 1944-8671
出版年: 2015
卷: 42, 期: 4 起始页码: 1139
结束页码: 1147
语种: 英语
英文关键词: high resolution
; mesoscale
; numerical model
; vertical velocity
Scopus关键词: Kinetic energy
; Kinetics
; Numerical models
; Strain rate
; Topography
; Velocity
; Coarser resolution model
; High resolution
; Mesoscale
; Southern ocean
; Spatial in-homogeneity
; Topographic features
; Topography controls
; Vertical velocity
; Oceanography
; inhomogeneity
; jet
; kinetic energy
; lee cyclogenesis
; meander
; mesoscale eddy
; numerical model
; oceanic circulation
; topographic effect
; Southern Ocean
英文摘要: Topography influences the circulation in the Southern Ocean, generating stationary meanders in the lee of topographic features, triggering hot spots of mesoscale eddy kinetic energy, and modifying jets and fronts. However, the relationship between topography and submesoscale flows (with length scales of order 1-10 km) has not yet been explored. The first submesoscale-resolving (1/80 resolution) ocean model, with realistic topography of the Indian sector of the Southern Ocean, is used to investigate this interaction. The results show spatial inhomogeneity in submesoscale activity that is correlated with topography. Topographic influence is primarily indirect: topography controls mesoscale flows, which in turn generate submesoscale activity. Mesoscale eddy kinetic energy and strain rate can be used, to first order, to infer submesoscale vertical velocity, implying a possible route to parameterise submesoscale activity in coarser resolution models. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84924905011&doi=10.1002%2f2014GL062720&partnerID=40&md5=108599a71070bc9960b8345e7c3c9456
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8556
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: Research School of Earth Sciences, Australian National University, Canberra, ACT, Australia
Recommended Citation:
Rosso I.,Hogg A.M.,Kiss A.E.,et al. Topographic influence on submesoscale dynamics in the Southern Ocean[J]. Geophysical Research Letters,2015-01-01,42(4).