DOI: 10.1002/2014GL059696
论文题名: Multidecadal modulations of the low-frequency climate variability in the wintertime North Pacific since 1950
作者: Miyasaka T. ; Nakamura H. ; Taguchi B. ; Nonaka M.
刊名: Geophysical Research Letters
ISSN: 0094-10139
EISSN: 1944-9870
出版年: 2014
卷: 41, 期: 8 起始页码: 2948
结束页码: 2955
语种: 英语
英文关键词: Aleutian Low
; El Niño-Southern Oscillation
; oceanic frontal zone
; Pacific decadal variability
; subtropical anticyclone
Scopus关键词: Atmospheric pressure
; Climate models
; Ocean currents
; Tropics
; Aleutian low
; Atmospheric variability
; Frontal zones
; Modulated temperature
; Pacific decadal variabilities
; Sea surface temperature (SST)
; Subarctic frontal zones
; Subtropical anticyclone
; Modulation
; anticyclone
; atmospheric dynamics
; climate variation
; decadal variation
; El Nino-Southern Oscillation
; oceanic front
; sea surface temperature
; subarctic region
; winter
; Pacific Ocean
; Pacific Ocean (North)
英文摘要: The North Pacific decadal variability (PDV) is known to manifest itself as two distinct spatial patterns. Observations since 1950 reveal that the wintertime PDV underwent notable modulations of their dominance in sea surface temperature (SST) variability and accompanying atmospheric variability. Until the 1980s, decadal SST variability was strongest along the subarctic frontal zone (SAFZ), the boundary between the warm Kuroshio and cool Oyashio waters. The SAFZ variability was highly correlated with decadal variability of the surface Aleutian Low but not simultaneously with tropical SST variability. Since the 1990s, however, this extratropical ocean-atmosphere variability has lost its predominance, taken over by SST variability in the subtropical frontal zone. It accompanies subtropical anticyclone variability, exhibiting significant anticorrelation with tropical SST variability. These long-term PDV modulations have remotely modulated temperature variability over Canada and Alaska. Similar PDV modulations are simulated in a centennial integration of a global climate model. Key Points Notable long-term modulations observed in Pacific decadal variability (PDV) First study to show coherent modulations in SST and atmospheric variability First study to show climate model reproduction of PDV modulations as observed ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84899033937&doi=10.1002%2f2014GL059696&partnerID=40&md5=0f259cb9c8464d18147ddcb1c709dc09
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7403
Appears in Collections: 气候减缓与适应
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作者单位: Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan
Recommended Citation:
Miyasaka T.,Nakamura H.,Taguchi B.,et al. Multidecadal modulations of the low-frequency climate variability in the wintertime North Pacific since 1950[J]. Geophysical Research Letters,2014-01-01,41(8).