DOI: 10.1007/s00382-015-2763-2
Scopus记录号: 2-s2.0-84937693969
论文题名: Combined effect of the Arctic Oscillation and the Western Pacific pattern on East Asia winter temperature
作者: Park H.-J. ; Ahn J.-B.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2016
卷: 46, 期: 2017-09-10 起始页码: 3205
结束页码: 3221
语种: 英语
英文关键词: Arctic Oscillation (AO)
; East Asia winter temperature
; East Asian winter monsoon
; Western Pacific (WP) pattern
英文摘要: The combined effect of the Arctic Oscillation (AO) and Western Pacific (WP) teleconnection pattern on the temperature variation during the winter in the northern hemisphere and East Asia over the last 56 years (1958/1959–2013/2014) was investigated using NCEP/NCAR reanalysis data. The study results revealed that the effect of the AO on winter temperature in East Asia could be changed depending on the phase of the WP pattern in the North Pacific. The negative relationship between the temperature of East Asia (25–45°N, 110–145°E) and the AO increased when the AO and WP were in-phase with each other. Hence, when winter negative (positive) AO was accompanied by negative (positive) WP, negative (positive) temperature anomalies were dominant across the entire East Asia region. Conversely, when the AO and WP were out-of-phase, the winter temperature anomaly in East Asia did not show distinct changes. Furthermore, from the perspective of stationary planetary waves, the zonal wavenumber-2 patterns of sea level pressure and geopotential height at 500 hPa related to the East Asian winter monsoon (EAWM) circulation strengthened when the AO and WP were in-phase but were not significant for the out-of-phase condition. An index considering the effect of both AO and WP on East Asia winter temperature was proposed. The correlation between the index and the East Asia winter temperature was statistically significant at the 99 % confidence level. The index was correlated with synoptic characteristics of the EAWM, including the Siberian High, East Asian trough, East Asian jet stream and surface air temperature. © 2015, The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53754
Appears in Collections: 过去全球变化的重建
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作者单位: Division of Earth Environmental System, Pusan National University, Pusan, South Korea
Recommended Citation:
Park H.-J.,Ahn J.-B.. Combined effect of the Arctic Oscillation and the Western Pacific pattern on East Asia winter temperature[J]. Climate Dynamics,2016-01-01,46(2017-09-10)