DOI: 10.1175/JCLI-D-12-00187.1
Scopus记录号: 2-s2.0-84885337193
论文题名: Upper-ocean salinity variability in the tropical pacific: Case study for quasi-decadal shift during the 2000s using TRITON buoys and argo floats
作者: Hasegawa T. ; Ando K. ; Ueki I. ; Mizuno K. ; Hosoda S.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 20 起始页码: 8126
结束页码: 8138
语种: 英语
Scopus关键词: Equatorial Pacific
; High-temperature water
; Negative salinity anomaly
; Salinity change
; Salinity variability
; Salinity variations
; Sea surface temperature anomalies
; Similar pattern
; Advection
; Atmospheric pressure
; Hydrographic surveys
; Oceanography
; Tropics
; Buoys
; advection
; Argo
; buoy system
; El Nino-Southern Oscillation
; mooring system
; salinity
; sea surface temperature
; temperature anomaly
; upper ocean
; Pacific Ocean
; Pacific Ocean (Equatorial)
; Pacific Ocean (Tropical)
英文摘要: Upper-ocean salinity variation in the tropical Pacific is investigated during the 2000s, when Triangle Trans-Ocean Buoy Network (TRITON) buoys and Argo floats were deployed and more salinity data were observed than in previous periods. This study focuses on upper-ocean salinity variability during the warming period of El Niño-Southern Oscillation (ENSO)-like quasi-decadal (QD)-scale sea surface temperature anomalies over the central equatorial Pacific (January 2002-December 2005; hereafter "warm QD phase"). It is shown that strong negative salinity anomalies occur in the western tropical Pacific and the off-equatorial Pacific in the upper ocean at depths less than 80 m, showing a horseshoe-like pattern centered at the western tropical Pacific during the warm QD phase. TRITON mooring buoy data in the western equatorial Pacific show that low-salinity and high-temperature water could be transported eastward from the western equatorial Pacific to the central equatorial Pacific during the warm QD phase. Similar patterns, but with the opposite sign of salinity anomalies, appear in the cold QD phase during January 2007-December 2009 with negative sea surface temperature anomalies over the central equatorial Pacific. It is suggested that effects from zonal salinity advection and precipitation could contribute to the generation of the salinity variations in the western equatorial Pacific for QD phases during the 2000s. On the other hand, the contribution of meridional salinity advection is much less than that of zonal salinity advection. In addition, El Niño Modoki and La Niña events could affect salinity changes for warm and cold QD phases via interannual-scale zonal salinity advection variations in the western equatorial Pacific during the 2000s. © 2013 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51611
Appears in Collections: 气候变化事实与影响
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作者单位: Japan Agency for Marine-Earth Science and Technology, Yokosuka, Kanagawa, Japan
Recommended Citation:
Hasegawa T.,Ando K.,Ueki I.,et al. Upper-ocean salinity variability in the tropical pacific: Case study for quasi-decadal shift during the 2000s using TRITON buoys and argo floats[J]. Journal of Climate,2013-01-01,26(20)