| DOI: | 10.1002/2014GL059490
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| 论文题名: | Low-frequency variability of South Pacific Tropical Water from Argo |
| 作者: | Zhang L.; Qu T.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-10169
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| EISSN: | 1944-9900
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| 出版年: | 2014
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| 卷: | 41, 期:7 | | 起始页码: | 2441
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| 结束页码: | 2446
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| 语种: | 英语
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| 英文关键词: | low-frequency variability
; Pacific Decadal Oscillation
; salinity
; South Pacific Tropical Water
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| Scopus关键词: | Earth sciences
; Geophysics
; Dipole-like structures
; Interannual variability
; Low frequency variability
; Pacific decadal oscillation
; salinity
; Salinity variability
; Sea surface salinity
; Tropical waters
; Tropics
; annual variation
; Argo
; gyre
; Pacific Decadal Oscillation
; precipitation (climatology)
; sea surface salinity
; water mass
; Pacific Ocean
; Pacific Ocean (South)
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| 英文摘要: | Based on the Argo floats data, the low-frequency salinity variability of the South Pacific Tropical Water (SPTW) is investigated in this study. Subsurface salinity along the 24.5 σθ surface in the South Pacific subtropical gyre exhibits a trend with dipole-like structure during 2004-2012 the northern flank of the SPTW gets fresher by 0.3 practical salinity unit (psu), while the southern flank gets saltier by 0.2 psu, suggesting a poleward shift of the water mass. Salinity along the SPTW core shows a relatively weak interannual variability with a peak-to-peak amplitude of 0.05 psu. Such a subsurface salinity variability seems to be connected with the sea surface salinity variability in the SPTW formation region, and the dipole-like structure of the salinity trend is further linked to the decadal variability of the evaporation minus precipitation in this region. Key Points SPTW salinity exhibits a trend with dipole-like structure during 2004-2012 SPTW salinity variation originates from SSS variation in its formation region SSS variation in SPTW formation region is linked to surface freshwater flux © 2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84897332051&doi=10.1002%2f2014GL059490&partnerID=40&md5=8e5f5ea1c5591c36ef5afb1c403fa00b
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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/7433
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| Appears in Collections: | 气候减缓与适应
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作者单位: | International Pacific Research Center, SOEST, University of Hawai'i at Manoa, Honolulu, HI, United States
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| Recommended Citation: | |
Zhang L.,Qu T.. Low-frequency variability of South Pacific Tropical Water from Argo[J]. Geophysical Research Letters,2014-01-01,41(7).
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