Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL077837 |
Dependence of Present and Future European Temperature Extremes on the Location of Atmospheric Blocking | |
Brunner, Lukas1,2,3; Schaller, Nathalie4; Anstey, James5; Sillmann, Jana4; Steiner, Andrea K.1,2,6 | |
2018-06-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:12页码:6311-6320 |
文章类型 | Article |
语种 | 英语 |
国家 | Austria; Switzerland; Norway; Canada |
英文摘要 | The impact of atmospheric blocking on European heat waves (HWs) and cold spells (CSs) is investigated for present and future conditions . A 50-member ensemble of the second generation Canadian Earth System Model is used to quantify the role of internal variability in the response to blocking. We find that the present blocking-extreme temperature link is well represented compared to ERA-Interim, despite a significant underestimation of blocking frequency in most ensemble members. Our results show a strong correlation of blocking with northern European HWs in summer, spring, and fall. However, we also find a strong anticorrelation between blocking and HW occurrence in southern Europe in all seasons. Blocking increases the CS frequency particularly in southern Europe in fall, winter, and spring but reduces it in summer. For the future we find that blocking will continue to play an important role in the development of both CSs and HWs in all seasons. Plain Language Summary Atmospheric blocking describes strong and stationary high-pressure systems at midlatitudes. It is frequently connected to surface extremes such as cold spells (CSs) and heat waves (HWs). We use a global climate model (second generation Canadian Earth System Model) with multiple realizations and investigate its performance in representing blocking and the impact on temperature extremes compared to the ERA-Interim reanalysis for present-day (1979-2010) conditions. We also look into the development in the future (2070-2099) under a high-emission scenario (Representative Concentration Pathway 8.5). We find the link between blocking and temperature extremes in Europe well represented in the second generation Canadian Earth System Model compared to ERA-Interim, despite a significant underestimation of blocking occurrence in almost all realizations. Our results show a strong impact of blocking on HWs in northern Europe in summer, spring, and fall, increasing the HW occurrence by a factor 2 and more. However, in southern Europe we find a strong anticorrelation between blocking and HW occurrence in all seasons. Blocking increases the CS frequency in all of Europe in fall, winter, and spring but reduces CSs in summer. For the future we find that blocking will continue to play an important role in the development of both CSs and HWs in all seasons. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000438499100054 |
WOS关键词 | ATLANTIC REGION ; CLIMATE ; PATTERNS ; SUMMER ; RUSSIA ; MODELS ; IMPACT ; SCALE ; COLD |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26859 |
专题 | 气候变化 |
作者单位 | 1.Karl Franzens Univ Graz, Wegener Ctr Climate & Global Change, Graz, Austria; 2.Karl Franzens Univ Graz, FWF DK Climate Change, Graz, Austria; 3.Swiss Fed Inst Technol, Inst Atmospher & Climate Sci, Zurich, Switzerland; 4.Ctr Int Climate Res CICERO, Oslo, Norway; 5.Univ Victoria, Canadian Ctr Climate Modelling & Anal, Environm & Climate Change Canada, Victoria, BC, Canada; 6.Karl Franzens Univ Graz, Inst Geophys Astrophys & Meteorol, Inst Phys, Graz, Austria |
推荐引用方式 GB/T 7714 | Brunner, Lukas,Schaller, Nathalie,Anstey, James,et al. Dependence of Present and Future European Temperature Extremes on the Location of Atmospheric Blocking[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(12):6311-6320. |
APA | Brunner, Lukas,Schaller, Nathalie,Anstey, James,Sillmann, Jana,&Steiner, Andrea K..(2018).Dependence of Present and Future European Temperature Extremes on the Location of Atmospheric Blocking.GEOPHYSICAL RESEARCH LETTERS,45(12),6311-6320. |
MLA | Brunner, Lukas,et al."Dependence of Present and Future European Temperature Extremes on the Location of Atmospheric Blocking".GEOPHYSICAL RESEARCH LETTERS 45.12(2018):6311-6320. |
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