globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-015-2590-5
Scopus记录号: 2-s2.0-84955748505
论文题名:
Extraordinary heat during the 1930s US Dust Bowl and associated large-scale conditions
作者: Donat M.G.; King A.D.; Overpeck J.T.; Alexander L.V.; Durre I.; Karoly D.J.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2016
卷: 46, 期:2017-01-02
起始页码: 413
结束页码: 426
语种: 英语
英文关键词: 20th century reanalysis ; Climate variability ; Drought ; Extreme heat ; GHCNDEX ; Seasonal predictability ; Teleconnections
英文摘要: Unusually hot summer conditions occurred during the 1930s over the central United States and undoubtedly contributed to the severity of the Dust Bowl drought. We investigate local and large-scale conditions in association with the extraordinary heat and drought events, making use of novel datasets of observed climate extremes and climate reanalysis covering the past century. We show that the unprecedented summer heat during the Dust Bowl years was likely exacerbated by land-surface feedbacks associated with springtime precipitation deficits. The reanalysis results indicate that these deficits were associated with the coincidence of anomalously warm North Atlantic and Northeast Pacific surface waters and a shift in atmospheric pressure patterns leading to reduced flow of moist air into the central US. Thus, the combination of springtime ocean temperatures and atmospheric flow anomalies, leading to reduced precipitation, also holds potential for enhanced predictability of summer heat events. The results suggest that hot drought, more severe than experienced during the most recent 2011 and 2012 heat waves, is to be expected when ocean temperature anomalies like those observed in the 1930s occur in a world that has seen significant mean warming. © 2015, Springer-Verlag Berlin Heidelberg.
资助项目: NSF, National Oceanic and Atmospheric Administration ; ARC, National Oceanic and Atmospheric Administration ; ARC, National Oceanic and Atmospheric Administration ; ARC, National Oceanic and Atmospheric Administration ; DOE, National Oceanic and Atmospheric Administration ; NOAA, National Oceanic and Atmospheric Administration
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53862
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作者单位: ARC Centre of Excellence for Climate System Science and Climate Change Research Centre, University of New South Wales, Sydney, Australia; Department of Geosciences and Department of Atmospheric Sciences, Institute of the Environment, University of Arizona, Tucson, AZ, United States; NOAA’s National Climatic Data Center, Asheville, NC, United States; ARC Centre of Excellence for Climate System Science, School of Earth Sciences, University of Melbourne, Parkville, VIC, Australia

Recommended Citation:
Donat M.G.,King A.D.,Overpeck J.T.,et al. Extraordinary heat during the 1930s US Dust Bowl and associated large-scale conditions[J]. Climate Dynamics,2016-01-01,46(2017-01-02)
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