On the role of the Atlantic Meridional Mode in eastern European temperature variability
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 Atlant...
Published in: | Atmospheric Research |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier
2023
|
Subjects: | |
Online Access: | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=28198 https://doi.org/10.1016/j.atmosres.2023.107082 |
id |
ftufz:oai:ufz.de:28198 |
---|---|
record_format |
openpolar |
spelling |
ftufz:oai:ufz.de:28198 2023-12-31T10:20:43+01:00 On the role of the Atlantic Meridional Mode in eastern European temperature variability Hari, V. Rakovec, Oldrich Zhang, W. Koppa, A. Collins, M. Kumar, Rohini 2023-11-03 application/pdf https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=28198 https://doi.org/10.1016/j.atmosres.2023.107082 en eng Elsevier Atmospheric Research 297;; art. 107082 https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=28198 https://dx.doi.org/10.1016/j.atmosres.2023.107082 info:eu-repo/semantics/closedAccess ISSN: 0169-8095 Eastern Europe Heatwave Atlantic Meridional Mode Climate model experiments info:eu-repo/semantics/article https://purl.org/dc/dcmitype/Text 2023 ftufz https://doi.org/10.1016/j.atmosres.2023.107082 2023-12-03T23:27:07Z 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 Niño–Southern Oscillation (ENSO) and North Atlantic Oscillation (NAO), have important implications for improving the prediction of EE heatwaves. Article in Journal/Newspaper North Atlantic North Atlantic oscillation UFZ - Publication Index (Helmholtz-Centre for Environmental Research) Atmospheric Research 297 107082 |
institution |
Open Polar |
collection |
UFZ - Publication Index (Helmholtz-Centre for Environmental Research) |
op_collection_id |
ftufz |
language |
English |
topic |
Eastern Europe Heatwave Atlantic Meridional Mode Climate model experiments |
spellingShingle |
Eastern Europe Heatwave Atlantic Meridional Mode Climate model experiments Hari, V. Rakovec, Oldrich Zhang, W. Koppa, A. Collins, M. Kumar, Rohini On the role of the Atlantic Meridional Mode in eastern European temperature variability |
topic_facet |
Eastern Europe Heatwave Atlantic Meridional Mode Climate model experiments |
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 Niño–Southern Oscillation (ENSO) and North Atlantic Oscillation (NAO), have important implications for improving the prediction of EE heatwaves. |
format |
Article in Journal/Newspaper |
author |
Hari, V. Rakovec, Oldrich Zhang, W. Koppa, A. Collins, M. Kumar, Rohini |
author_facet |
Hari, V. Rakovec, Oldrich Zhang, W. Koppa, A. Collins, M. Kumar, Rohini |
author_sort |
Hari, V. |
title |
On the role of the Atlantic Meridional Mode in eastern European temperature variability |
title_short |
On the role of the Atlantic Meridional Mode in eastern European temperature variability |
title_full |
On the role of the Atlantic Meridional Mode in eastern European temperature variability |
title_fullStr |
On the role of the Atlantic Meridional Mode in eastern European temperature variability |
title_full_unstemmed |
On the role of the Atlantic Meridional Mode in eastern European temperature variability |
title_sort |
on the role of the atlantic meridional mode in eastern european temperature variability |
publisher |
Elsevier |
publishDate |
2023 |
url |
https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=28198 https://doi.org/10.1016/j.atmosres.2023.107082 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
ISSN: 0169-8095 |
op_relation |
https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=28198 https://dx.doi.org/10.1016/j.atmosres.2023.107082 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.atmosres.2023.107082 |
container_title |
Atmospheric Research |
container_volume |
297 |
container_start_page |
107082 |
_version_ |
1786831223699537920 |