| DOI: | 10.1002/2015GL066050
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| 论文题名: | Recent freshening of the East Australian Current and its eddies |
| 作者: | Rykova T.; Oke P.R.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8521
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| EISSN: | 1944-8252
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| 出版年: | 2015
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| 卷: | 42, 期:21 | | 起始页码: | 9369
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| 结束页码: | 9378
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| 语种: | 英语
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| 英文关键词: | Argo
; East Australian Current
; freshening
; interannual variability
; mesoscale eddies
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| Scopus关键词: | Earth sciences
; Geophysics
; Argo
; Eastern Australia
; Freshening
; Interannual variability
; Mesoscale eddy
; Temperature changes
; Temperature trends
; Weak mean flows
; Hydrographic surveys
; annual variation
; Argo
; mesoscale eddy
; oceanic circulation
; precipitation (climatology)
; recirculating system
; salinity
; spatiotemporal analysis
; temperature profile
; trend analysis
; East Australian Current
; Pacific Ocean
; Tasman Sea
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| 英文摘要: | The East Australian Current (EAC) has a relatively weak mean flow and an energetic eddy field that dominates the circulation. The properties of the mean flow have been studied in detail, but the changes in the eddy field have received little attention. We analyze Argo temperature and salinity profiles for 2005-2012 to construct a picture of the time-mean and time-varying properties of EAC eddies. We find that eddies and the surrounding waters of the western Tasman Sea are freshening at a rate of 0.017-0.025 practical salinity unit/yr over the top 100 m, with no significant temperature change. Consistent with the observations, fields from an eddy-resolving ocean model show freshening, with no temperature trend. Moreover, the model results indicate that observed changes are significant in the context of the variability over the last 20 years and may be part of a multiyear (perhaps decadal) cycle. We attribute the freshening of the region to increased precipitation off Eastern Australia. © 2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84955178129&doi=10.1002%2f2015GL066050&partnerID=40&md5=dde819344e10090c26ac51fc091b36b2
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/8137
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| 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: | CSIRO Oceans and Atmosphere Flagship, Hobart, Australia
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| Recommended Citation: | |
Rykova T.,Oke P.R.. Recent freshening of the East Australian Current and its eddies[J]. Geophysical Research Letters,2015-01-01,42(21).
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