On the role of the Atlantic Meridional Mode in eastern European temperature variability

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F24%3A97229" target="_blank" >RIV/60460709:41330/24:97229 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.atmosres.2023.107082" target="_blank" >http://dx.doi.org/10.1016/j.atmosres.2023.107082</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.atmosres.2023.107082" target="_blank" >10.1016/j.atmosres.2023.107082</a>

Result language
angličtina
Original language name
On the role of the Atlantic Meridional Mode in eastern European temperature variability
Original language description
The eastern European (EE) region has experienced record-breaking heatwave events in recent years, and such events are expected to increase in future with global warming. Early warning systems are an important step towards mitigating their impacts. Here we seek to further clarify the effect of Atlantic Meridional Mode (AMM) on the EE region temperature variability. Using observations and climate model experiments, we show a significant association between the AMM and temperature variability across the region. The positive phase of AMM leads to a significant increase in EE temperature of 0.9 C, p-value < 0.1, for a one standard deviation AMM anomaly, and vice-versa. The mechanism through which the AMM can modulate the EE temperature arises through a persistent planetary-scale Rossby wave which causes an anomalous anticyclone circulation leading to a positive temperature anomaly. This relationship, along with the mutually exclusive and independent large-scale climatic modes such as the El Nino-Southern Oscillation (ENSO) and North Atlantic Oscillation (NAO), have important implications for improving the prediction of EE heatwaves.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10509 - Meteorology and atmospheric sciences

Project
<a href="/en/project/GC19-24089J" target="_blank" >GC19-24089J: XEROS: eXtreme EuRopean drOughtS - Multimodel synthesis of past, present and future events</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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