Extreme weather events in early summer 2018 connected by a recurrent hemispheric wave-7 pattern
By K. Kornhuber, S. Osprey, Dim Coumou, S. Petri, V. Petoukhov, Stefan Rahmstorf, L. Gray. Environmental Research Letters, 2018
322 citations recorded by the source corpus.
The summer of 2018 witnessed a number of extreme weather events such as heatwaves in North America, Western Europe and the Caspian Sea region, and rainfall extremes in South-East Europe and Japan that occurred near-simultaneously. Here we show that some of these extremes were connected by an amplified hemisphere-wide wavenumber 7 circulation pattern. We show that this pattern constitutes an important teleconnection in Northern Hemisphere summer associated with prolonged and above-normal temperatures in North America, Western Europe and the Caspian Sea region. This pattern was also observed during the European heatwaves of 2003, 2006 and 2015 among others. We show that the occurrence of this wave 7 pattern has increased over recent decades.
Subfields: Atmospheric Science, Global and Planetary Change
View Paper: https://www.semanticscholar.org/paper/20a5582101770432d0ff8f3664298c189fa900bb
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Citations in the corpus
- Quantifying impacts of the 2018 drought on European ecosystems in comparison to 2003 (2019, background): “Given the associated climatic properties, hotter droughts are more likely to occur under abnormally stable anticyclonic atmospheric circulation patterns which were recently shown to be connected with a hemisphere-wide wavenumber 7 circulation pattern (Kornhuber et al., 2019).”
- Why We Can No Longer Ignore Consecutive Disasters (2020, unknown): “This requires a standardized unit to measure and cumulate the impacts of different hazard types, which is dif fi cult to de fi ne (Kappes et al., 2012; Korswagen et al., 2019; Marzocchi et al., 2012).”
- Severity of drought and heatwave crop losses tripled over the last five decades in Europe (2021, background): “On the other hand, climate change is also expected to increase general weather variability, for example through more stationary atmospheric wave pattern that can cause intensified heatwaves, but also cold snaps (Mann et al 2018, Kornhuber et al 2019).”