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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10509 - Meteorology and atmospheric sciences

Projekt

<a href="/cs/project/GC19-24089J" target="_blank" >GC19-24089J: XEROS: Extrémní evropská sucha - Vícemodelová syntéza minulých, současných a budoucích událostí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ATMOSPHERIC RESEARCH

ISSN

0169-8095

e-ISSN

0169-8095

Svazek periodika

2024

Číslo periodika v rámci svazku

297

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

001110164100001

EID výsledku v databázi Scopus

2-s2.0-85175734979