Articles | Volume 1, issue 1
Research article
 | Highlight paper
26 Feb 2020
Research article | Highlight paper |  | 26 Feb 2020

The substructure of extremely hot summers in the Northern Hemisphere

Matthias Röthlisberger, Michael Sprenger, Emmanouil Flaounas, Urs Beyerle, and Heini Wernli

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Cited articles

Barriopedro, D., Fischer, E., Luterbacher, J., Trigo, R., and Ricardo, G.-H.: The hot summer of 2010: Redrawing the temperature record map of Europe, Test, 332, 220–224,, 2011. 
Brunner, L., Hegerl, G. C., and Steiner, A. K.: Connecting atmospheric blocking to European temperature extremes in spring, J. Climate, 30, 585–594,, 2017. 
Buras, A., Rammig, A., and Zang, C. S.: Quantifying impacts of the drought 2018 on European ecosystems in comparison to 2003, Biogeosciences Discuss.,, in review, 2019. 
Cohen, J., Screen, J. A., Furtado, J. C., Barlow, M., Whittleston, D., Coumou, D., Francis, J., Dethloff, K., Entekhabi, D., Overland, J., and Jones, J.: Recent Arctic amplification and extreme mid-latitude weather, Nat. Geosci., 7, 627–637,, 2014. 

The requested paper has a corresponding corrigendum published. Please read the corrigendum first before downloading the article.

Short summary
In this study we quantify how much the coldest, middle and hottest third of all days during extremely hot summers contribute to their respective seasonal mean anomaly. This extreme-summer substructure varies substantially across the Northern Hemisphere and is directly related to the local physical drivers of extreme summers. Furthermore, comparing re-analysis (i.e. measurement-based) and climate model extreme-summer substructures reveals a remarkable level of agreement.