Tellus A: Dynamic Meteorology and Oceanography最新文献

筛选

英文中文

Connecting North Atlantic SST Variability to European Heat Events over the Past Decades 将北大西洋 SST 变率与过去几十年欧洲高温事件联系起来

Tellus A: Dynamic Meteorology and Oceanography Pub Date : 2023-11-20 DOI: 10.16993/tellusa.3235

J. Krüger, J. Kjellsson, R. Kedzierski, Martin Claus

{"title":"Connecting North Atlantic SST Variability to European Heat Events over the Past Decades","authors":"J. Krüger, J. Kjellsson, R. Kedzierski, Martin Claus","doi":"10.16993/tellusa.3235","DOIUrl":"https://doi.org/10.16993/tellusa.3235","url":null,"abstract":"The occurrence of European heat events has increased during the last two decades. European heat events are responsible for social, economic and environmental damage and are projected to increase in magnitude, frequency and duration under global warming, strengthening the interest about the contribution of different mechanisms. Using the ERA5 reanalysis product, we go beyond case studies relating European heat events with cold North Atlantic sea surface temperatures (SSTs), and perform a systematic approach with a composite analysis to investigate the link between North Atlantic SSTs in a domain south of Greenland and the 2m air temperature (T2m) over central Europe. Composites of different North Atlantic SST states show that events with a negative tendency of North Atlantic SSTs are often followed by positive European T2m anomalies during summers when the North Atlantic SSTs are persistently low for several months. Enhanced lower–tropospheric baroclinicity in the North Atlantic is followed during these events by a slantwise ascent and an enhanced upper–tropospheric waveguide, promoting a downstream development of an European ridge. A combination of a wave number 3 pattern and regionally confined Rossby wave activity contribute to a trough–ridge pattern in the North Atlantic–European sector. A composite of European heat events further confirms the lagged statistical relationship between cold North Atlantic SSTs with a negative tendency and positive European T2m anomalies. A negative tendency of North Atlantic SSTs precedes 15 of 18 European heat events, and cold North Atlantic SST conditions are present during 14 of 18 European heat events.","PeriodicalId":501529,"journal":{"name":"Tellus A: Dynamic Meteorology and Oceanography","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139257826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recurrence of Drought Events Over Iberia. Part II: Future Changes Using Regional Climate Projections 伊比利亚半岛干旱事件的重现。第二部分:利用区域气候预估的未来变化

Tellus A: Dynamic Meteorology and Oceanography Pub Date : 2022-04-25 DOI: 10.16993/tellusa.52

Julia Moemken,Benjamin Koerner,Florian Ehmele,Hendrik Feldmann,Joaquim G. Pinto

引用次数: 0

Surprises in Physical Oceanography: Contributions from Ocean Acoustic Tomography 物理海洋学中的惊喜:来自海洋声学层析成像的贡献

Tellus A: Dynamic Meteorology and Oceanography Pub Date : 2022-03-22 DOI: 10.16993/tellusa.39

Brian D. Dushaw

引用次数: 0