globalchange  > 气候变化事实与影响
DOI: 10.1175/JCLI-D-16-0164.1
Scopus记录号: 2-s2.0-84996866098
论文题名:
A multiregion model evaluation and attribution study of historical changes in the area affected by temperature and precipitation extremes
作者: Dittus A.J.; Karoly D.J.; Lewis S.C.; Alexander L.V.; Donat M.G.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2016
卷: 29, 期:23
起始页码: 8285
结束页码: 8299
语种: 英语
Scopus关键词: Atmospheric radiation ; Climate change ; Anthropogenic influence ; Anthropogenic signals ; Climate variability ; Extreme events ; Maximum and minimum temperatures ; Northern Hemispheres ; Precipitation extremes ; Trends ; Climate models
英文摘要: The skill of eight climate models in simulating the variability and trends in the observed areal extent of daily temperature and precipitation extremes is evaluated across five large-scale regions, using the climate extremes index (CEI) framework. Focusing on Europe, North America, Asia, Australia, and the Northern Hemisphere, results show that overall the models are generally able to simulate the decadal variability and trends of the observed temperature and precipitation components over the period 1951-2005. Climate models are able to reproduce observed increasing trends in the area experiencing warm maximum and minimum temperature extremes, as well as, to a lesser extent, increasing trends in the areas experiencing an extreme contribution of heavy precipitation to total annual precipitation for the Northern Hemisphere regions. Using simulations performed under different radiative forcing scenarios, the causes of simulated and observed trends are investigated. A clear anthropogenic signal is found in the trends in the maximum and minimum temperature components for all regions. In North America, a strong anthropogenically forced trend in the maximum temperature component is simulated despite no significant trend in the gridded observations, although a trend is detected in a reanalysis product. A distinct anthropogenic influence is also found for trends in the area affected by a much-above-average contribution of heavy precipitation to annual precipitation totals for Europe in a majority of models and to varying degrees in other Northern Hemisphere regions. However, observed trends in the area experiencing extreme total annual precipitation and extreme number of wet and dry days are not reproduced by climate models under any forcing scenario. © 2016 American Meteorological Society.
资助项目: ARC, Australian Research Council ; ARC, Australian Research Council
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50022
Appears in Collections:气候变化事实与影响

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作者单位: School of Earth Sciences, University of Melbourne, Parkville, VIC, Australia; Australian Research Council Centre of Excellence for Climate System Science, University of Melbourne, Parkville, VIC, Australia; Research School of Earth Sciences, Australian National University, Canberra, ACT, Australia; Australian Research Council Centre of Excellence for Climate System Science, Australian National University, Canberra, ACT, Australia; Climate Change Research Centre, University of New South Wales, Sydney, NSW, Australia; Australian Research Council Centre of Excellence for Climate System Science, University of New South Wales, Sydney, NSW, Australia

Recommended Citation:
Dittus A.J.,Karoly D.J.,Lewis S.C.,et al. A multiregion model evaluation and attribution study of historical changes in the area affected by temperature and precipitation extremes[J]. Journal of Climate,2016-01-01,29(23)
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