DOI: 10.1175/2011JCLI4142.1
Scopus记录号: 2-s2.0-84861413870
论文题名: Recent warming in the western north pacific in relation to rapid changes in the atmospheric circulation of the Siberian high and aleutian low systems
作者: Park Y.-H. ; Yoon J.-H. ; Youn Y.-H. ; Vivier F.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期: 10 起始页码: 3476
结束页码: 3493
语种: 英语
Scopus关键词: Aleutian low
; Atmospheric circulation
; Combined effect
; Delayed response
; East Asian winter monsoon
; East China Sea
; Gyre circulation
; Kuroshio
; North Pacific
; Ocean dynamics
; Rapid changes
; Rossby wave
; Sea surface temperature anomalies
; Siberian highs
; Western North Pacific
; Wind stress curl
; Climatology
; Wind stress
; Ocean currents
; atmospheric circulation
; decadal variation
; gyre
; low pressure
; midlatitude environment
; monsoon
; Rossby wave
; sea surface temperature
; warming
; wind stress
; winter
; East China Sea
; Kuroshio Current
; Pacific Ocean
; Pacific Ocean (North)
英文摘要: On the basis of a new East Asian winter monsoon (EAWM) index and by analyzing the relationship between sea surface temperature (SST) anomalies and different atmospheric and oceanic factors in winter, this study investigates the causes of the recent unusual warming in the western North Pacific Ocean. Analyses presented here emphasize the dual contribution from the atmosphere and ocean to the local SST variability, with the relative importance of each contributor varying with the period and place. During the period 1970-89, the EAWM, controlled mostly by the Siberian high, is predominantly responsible for the SST variability in most of the western North Pacific, whereas in the period 1990-2005 ocean dynamics become increasingly important in most places or even dominant in the Kuroshio-Oyasio Extension (KOE) region. The delayed response of the KOE SST to basinwide wind stress curl forcing via Rossby waves is epoch dependent and is significant at lags of 1, 3, and 4 yr before 1990 but only at 1 yr afterward. This epoch dependency of the impact of Rossby waves is related to the different locations of the centers of action of wind stress curl in themidlatitude North Pacific between the two epochs. In addition, mean advection of the EAWM-driven anomalous SST from the southern East China Sea, which can be transported into the KOE region in about a year by the Kuroshio, likely affects the KOE SST lagged by 1 yr. The strongest positive SST trend observed in the western North Pacific results from the combined effects of the abrupt weakening of the EAWM due to the unprecedented decline of the Siberian high and the increasing role of the ocean. The latter is best evidenced by the 1-yr delayed response of the western North Pacific via the gyre circulation adjustment to the basinwide decadal-scale wind stress curl change associated with the northward shift of the strengthened Aleutian low. © 2012 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52435
Appears in Collections: 气候变化事实与影响
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作者单位: LOCEAN/DMPA, Muséum National d'Histoire Naturelle, Paris, France; Research Institute for Applied Mechanics, Kyushu University, Fukuoka, Japan; Korean Academy of Meteorology and Climate, Seoul, South Korea; CNRS, LOCEAN/IPSL, Université Pierre et Marie Curie, Paris, France
Recommended Citation:
Park Y.-H.,Yoon J.-H.,Youn Y.-H.,et al. Recent warming in the western north pacific in relation to rapid changes in the atmospheric circulation of the Siberian high and aleutian low systems[J]. Journal of Climate,2012-01-01,25(10)