DOI: 10.1002/2015GL063045
论文题名: Decadal changes in South Pacific sea surface temperatures and the relationship to the Pacific decadal oscillation and upper ocean heat content
作者: Linsley B.K. ; Wu H.C. ; Dassié E.P. ; Schrag D.P.
刊名: Geophysical Research Letters
ISSN: 0094-8770
EISSN: 1944-8501
出版年: 2015
卷: 42, 期: 7 起始页码: 2358
结束页码: 2366
语种: 英语
英文关键词: coral Sr/Ca
; decadal climate change
; ocean heat
; PDO
; SST
Scopus关键词: Atmospheric temperature
; Climate change
; Enthalpy
; Submarine geophysics
; Surface properties
; Surface waters
; Coral Sr/Ca
; Meridional overturning cell
; Ocean heat
; Pacific decadal oscillation
; PDO
; Sea surface temperature (SST)
; Sea surface temperatures
; SST
; Oceanography
; climate change
; decadal variation
; meridional circulation
; Pacific Decadal Oscillation
; sea surface temperature
; upper ocean
; Pacific Ocean
; Pacific Ocean (South)
; Anthozoa
英文摘要: Decadal changes in Pacific sea surface temperatures (SSTs) and upper ocean heat content (OHC) remain poorly understood. We present an annual average composite coral Sr/Ca-derived SST time series extending back to 1791 from Fiji, Tonga, and Rarotonga (FTR) in the Pacific Decadal Oscillation (PDO) sensitive region of the southwest Pacific. Decadal SST maxima between 1805 and 1830 Common Era (C.E.) indicate unexplained elevated SSTs near the end of the Little Ice Age. The mean period of decadal SST variability in this region has a period near 25 years. Decades of warmer (cooler) FTR SST co-occur with PDO negative (positive) phases since at least ∼1930 C.E. and positively correlate with South Pacific OHC (0-700 m). FTR SST is also inversely correlated with decadal changes in equatorial Pacific SST as measured by coral Sr/Ca. Collectively, these results support the fluctuating trade wind-shallow meridional overturning cell mechanism for decadal modulation of Pacific SSTs and OHC. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928705428&doi=10.1002%2f2015GL063045&partnerID=40&md5=9a02f52dd192634ac9e90783997b613a
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8386
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: Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States
Recommended Citation:
Linsley B.K.,Wu H.C.,Dassié E.P.,et al. Decadal changes in South Pacific sea surface temperatures and the relationship to the Pacific decadal oscillation and upper ocean heat content[J]. Geophysical Research Letters,2015-01-01,42(7).