| DOI: | 10.1175/JCLI-D-15-0741.1
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| Scopus记录号: | 2-s2.0-85008620702
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| 论文题名: | Arctic and East Asia winter climate variations associated with the Eastern Atlantic pattern |
| 作者: | Fan S.; Yang X.
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| 刊名: | Journal of Climate
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| ISSN: | 8948755
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| 出版年: | 2017
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| 卷: | 30, 期:2 | | 起始页码: | 573
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| 结束页码: | 583
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| 语种: | 英语
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| Scopus关键词: | Atmospheric pressure
; Climate change
; Fighter aircraft
; Lakes
; Sea ice
; Sea level
; Climate variability
; Decadal variability
; Interannual variability
; North Atlantic oscillations
; Seasonal variability
; Trends
; Climate models
; air temperature
; climate change
; climate modeling
; North Atlantic Oscillation
; regional climate
; temporal variation
; trend analysis
; winter
; Arctic
; Atlantic Ocean
; Atlantic Ocean (East)
; Far East
; Scandinavia
; Siberia
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| 英文摘要: | The wintertime Arctic temperature (T; surface-400 hPa) decreased from 1979 to 1997 and increased rapidly from 1998 to 2012, in contrast to the global mean surface air temperature. Here aspects of circulation variability that are associated with these temperature changes are examined using the NCEP-NCAR reanalysis and ERA-Interim products. It is found that the Nordic-Siberia seesaw of meridional winds near 70°N is associated with two-thirds of the variance of the Arctic winter mean T, possibly contributing to the cooling and warming trends. It is suggested here that the seesaw accounts for much of the difference in Arctic amplification between observations and climate models. Growth of sea ice in winter is hindered by southerly winds over the Nordic region (0°-60°E). Through modulation of the wind seesaw, the eastern Atlantic (EA) pattern is found to be significantly associated with Arctic and East Asia winter climate variations. In one phase of the EA pattern, a midlatitude North Atlantic ridge anomaly is associated with a poleward shift of the mean storm track, a weakened eddy-driven jet over Eurasia, and above-normal sea level pressure (SLP) over Siberia, most significantly in the region to the northwest of Lake Baikal. The EA pattern is associated with two-thirds of the variance of winter-average SLP over Siberia. © 2017 American Meteorological Society. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/49841
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| Appears in Collections: | 气候变化事实与影响
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作者单位: | NOAA/Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States; University Corporation for Atmospheric Research, Boulder, CO, United States
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| Recommended Citation: | |
Fan S.,Yang X.. Arctic and East Asia winter climate variations associated with the Eastern Atlantic pattern[J]. Journal of Climate,2017-01-01,30(2)
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