Increased persistence of large-scale circulation regimes over Asia in the era of amplified Arctic warming, past and future

被引:22
作者
Francis, Jennifer A. [1 ]
Skific, Natasa [2 ]
Vavrus, Stephen J. [3 ]
机构
[1] Woodwell Climate Res Ctr, Falmouth, MA 02540 USA
[2] Rutgers State Univ, Dept Marine & Coastal Sci, New Brunswick, NJ USA
[3] Univ Wisconsin, Nelson Inst Ctr Climat Res, Madison, WI USA
关键词
SEA-ICE; AMPLIFICATION;
D O I
10.1038/s41598-020-71945-4
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Extreme weather events in Asia have been occurring with increasing frequency as the globe warms in response to rising concentrations of greenhouse gases. Many of these events arise from weather regimes that persist over a region for days or even weeks, resulting in disruptive heatwaves, droughts, flooding, snowfalls, and cold spells. We investigate changes in the persistence of large-scale weather systems through a pattern-recognition approach based on daily 500 hPa geopotential height anomalies over the Asian continent. By tracking consecutive days that the atmosphere resides in a particular pattern, we identify long-duration events (LDEs), defined as lasting longer than three days, and measure their frequency of occurrence over time in each pattern. We find that regimes featuring positive height anomalies in high latitudes are occurring more often as the Arctic warms faster than mid-latitudes, both in the recent past and in model projections for the twenty-first century assuming unabated greenhouse gas emissions. The increased dominance of these patterns corresponds to a higher likelihood of LDEs, suggesting that persistent weather conditions will occur more frequently. By mapping observed temperature and precipitation extremes onto each atmospheric regime, we gain insight into the types of disruptive weather events that will become more prevalent as particular patterns become more common.
引用
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页数:13
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共 26 条
  • [1] Historical trends in the jet streams
    Archer, Cristina L.
    Caldeira, Ken
    [J]. GEOPHYSICAL RESEARCH LETTERS, 2008, 35 (08)
  • [2] CMIP5 Projections of Arctic Amplification, of the North American/North Atlantic Circulation, and of Their Relationship
    Barnes, Elizabeth A.
    Polvani, Lorenzo M.
    [J]. JOURNAL OF CLIMATE, 2015, 28 (13) : 5254 - 5271
  • [3] Insignificant effect of Arctic amplification on the amplitude of midlatitude atmospheric waves
    Blackport, Russell
    Screen, James A.
    [J]. SCIENCE ADVANCES, 2020, 6 (08)
  • [4] Minimal influence of reduced Arctic sea ice on coincident cold winters in mid-latitudes
    Blackport, Russell
    Screen, James A.
    van der Wiel, Karin
    Bintanja, Richard
    [J]. NATURE CLIMATE CHANGE, 2019, 9 (09) : 697 - +
  • [5] Divergent consensuses on Arctic amplification influence on midlatitude severe winter weather
    Cohen, J.
    Zhang, X.
    Francis, J.
    Jung, T.
    Kwok, R.
    Overland, J.
    Ballinger, T. J.
    Bhatt, U. S.
    Chen, H. W.
    Coumou, D.
    Feldstein, S.
    Gu, H.
    Handorf, D.
    Henderson, G.
    Ionita, M.
    Kretschmer, M.
    Laliberte, F.
    Lee, S.
    Linderholm, H. W.
    Maslowski, W.
    Peings, Y.
    Pfeiffer, K.
    Rigor, I.
    Semmler, T.
    Stroeve, J.
    Taylor, P. C.
    Vavrus, S.
    Vihma, T.
    Wang, S.
    Wendisch, M.
    Wu, Y.
    Yoon, J.
    [J]. NATURE CLIMATE CHANGE, 2020, 10 (01) : 20 - +
  • [6] Arctic amplification is caused by sea-ice loss under increasing CO2
    Dai, Aiguo
    Luo, Dehai
    Song, Mirong
    Liu, Jiping
    [J]. NATURE COMMUNICATIONS, 2019, 10 (1)
  • [7] North American Weather Regimes Are Becoming More Persistent: Is Arctic Amplification a Factor?
    Francis, J. A.
    Skific, N.
    Vavrus, S. J.
    [J]. GEOPHYSICAL RESEARCH LETTERS, 2018, 45 (20) : 11414 - 11422
  • [8] Evidence for a wavier jet stream in response to rapid Arctic warming
    Francis, Jennifer A.
    Vavrus, Stephen J.
    [J]. ENVIRONMENTAL RESEARCH LETTERS, 2015, 10 (01):
  • [9] Evidence linking Arctic amplification to extreme weather in mid-latitudes
    Francis, Jennifer A.
    Vavrus, Stephen J.
    [J]. GEOPHYSICAL RESEARCH LETTERS, 2012, 39
  • [10] Characterization of increased persistence and intensity of precipitation in the northeastern United States
    Guilbert, Justin
    Betts, Alan K.
    Rizzo, Donna M.
    Beckage, Brian
    Bomblies, Arne
    [J]. GEOPHYSICAL RESEARCH LETTERS, 2015, 42 (06) : 1888 - 1893