DOI: 10.1002/2013GB004708
Scopus记录号: 2-s2.0-85027938810
论文题名: Sensitivity of ocean oxygenation to variations in tropical zonal wind stress magnitude
作者: Ridder N ; N ; , England M ; H
刊名: Global Biogeochemical Cycles
ISSN: 8866236
出版年: 2014
卷: 28, 期: 9 起始页码: 909
结束页码: 926
语种: 英语
英文关键词: dissolved oxygen
; marine biogeochemistry
; marine biology model
; oxygen minimum zones
; UVic ESCM
Scopus关键词: biogeochemistry
; dissolved oxygen
; global ocean
; oxygen minimum layer
; oxygenation
; sensitivity analysis
; tropical environment
; wind stress
; Chile
; Indian Ocean
; Pacific Ocean
; Somalia
英文摘要: Ocean oxygenation has been observed to have changed over the past few decades and is projected to change further under global climate change due to an interplay of several mechanisms. In this study we isolate the effect of modified tropical surface wind stress conditions on the evolution of ocean oxygenation in a numerical climate model. We find that ocean oxygenation varies inversely with low-latitude surface wind stress. Approximately one third of this response is driven by sea surface temperature anomalies; the remaining two thirds result from changes in ocean circulation and marine biology. Global mean O2 concentration changes reach maximum values of +4 μM and -3.6 μM in the two most extreme perturbation cases of -30% and +30% wind change, respectively. Localized changes lie between +92 μM under 30% reduced winds and -56 μM for 30% increased winds. Overall, we find that the extent of the global low-oxygen volume varies with the same sign as the wind perturbation; namely, weaker winds reduce the low-oxygen volume on the global scale and vice versa for increased trade winds. We identify two regions, one in the Pacific Ocean off Chile and the other in the Indian Ocean off Somalia, that are of particular importance for the evolution of oxygen minimum zones in the global ocean. ©2014. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/77454
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Australian Research Council Centre of Excellence for Climate System Science, University of New South Wales, Sydney, NSW, Australia
Recommended Citation:
Ridder N,N,, England M,et al. Sensitivity of ocean oxygenation to variations in tropical zonal wind stress magnitude[J]. Global Biogeochemical Cycles,2014-01-01,28(9)