A 2000 year long seasonal record of floods in the southern European Alps
Knowledge of past natural flood variability and controlling climate factors is of high value since it can be useful to refine projections of the future flood behavior under climate warming. In this context, we present a seasonally resolved 2000 year long flood frequency and intensity reconstruction...
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ftunivgeneve:oai:unige.ch:unige:30130 2023-05-15T17:33:02+02:00 A 2000 year long seasonal record of floods in the southern European Alps Wirth, Stefanie B. Gilli, Adrian Simonneau, Anaëlle Ariztegui, Daniel Vannière, Boris Glur, Lukas Chapron, Emmanuel Magny, Michel Anselmetti, Flavio S. 2013 https://archive-ouverte.unige.ch/unige:30130 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1002/grl.50741 unige:30130 https://archive-ouverte.unige.ch/unige:30130 info:eu-repo/semantics/restrictedAccess ISSN: 0094-8276 Geophysical research letters, Vol. 40, No 15 (2013) pp. 4025-4029 info:eu-repo/classification/ddc/550 Alps Floods Lake sediments Seasonality Natural hazard Solar variability Text Article scientifique info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2013 ftunivgeneve https://doi.org/10.1002/grl.50741 2022-06-19T23:38:56Z Knowledge of past natural flood variability and controlling climate factors is of high value since it can be useful to refine projections of the future flood behavior under climate warming. In this context, we present a seasonally resolved 2000 year long flood frequency and intensity reconstruction from the southern Alpine slope (North Italy) using annually laminated (varved) lake sediments. Floods occurred predominantly during summer and autumn, whereas winter and spring events were rare. The all-season flood frequency and, particularly, the occurrence of summer events increased during solar minima, suggesting solar-induced circulation changes resembling negative conditions of the North Atlantic Oscillation as controlling atmospheric mechanism. Furthermore, the most extreme autumn events occurred during a period of warm Mediterranean sea surface temperature. Interpreting these results in regard to present climate change, our data set proposes for a warming scenario, a decrease in summer floods, but an increase in the intensity of autumn floods at the South-Alpine slope. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Université de Genève: Archive ouverte UNIGE Geophysical Research Letters 40 15 4025 4029 |
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Open Polar |
collection |
Université de Genève: Archive ouverte UNIGE |
op_collection_id |
ftunivgeneve |
language |
English |
topic |
info:eu-repo/classification/ddc/550 Alps Floods Lake sediments Seasonality Natural hazard Solar variability |
spellingShingle |
info:eu-repo/classification/ddc/550 Alps Floods Lake sediments Seasonality Natural hazard Solar variability Wirth, Stefanie B. Gilli, Adrian Simonneau, Anaëlle Ariztegui, Daniel Vannière, Boris Glur, Lukas Chapron, Emmanuel Magny, Michel Anselmetti, Flavio S. A 2000 year long seasonal record of floods in the southern European Alps |
topic_facet |
info:eu-repo/classification/ddc/550 Alps Floods Lake sediments Seasonality Natural hazard Solar variability |
description |
Knowledge of past natural flood variability and controlling climate factors is of high value since it can be useful to refine projections of the future flood behavior under climate warming. In this context, we present a seasonally resolved 2000 year long flood frequency and intensity reconstruction from the southern Alpine slope (North Italy) using annually laminated (varved) lake sediments. Floods occurred predominantly during summer and autumn, whereas winter and spring events were rare. The all-season flood frequency and, particularly, the occurrence of summer events increased during solar minima, suggesting solar-induced circulation changes resembling negative conditions of the North Atlantic Oscillation as controlling atmospheric mechanism. Furthermore, the most extreme autumn events occurred during a period of warm Mediterranean sea surface temperature. Interpreting these results in regard to present climate change, our data set proposes for a warming scenario, a decrease in summer floods, but an increase in the intensity of autumn floods at the South-Alpine slope. |
format |
Article in Journal/Newspaper |
author |
Wirth, Stefanie B. Gilli, Adrian Simonneau, Anaëlle Ariztegui, Daniel Vannière, Boris Glur, Lukas Chapron, Emmanuel Magny, Michel Anselmetti, Flavio S. |
author_facet |
Wirth, Stefanie B. Gilli, Adrian Simonneau, Anaëlle Ariztegui, Daniel Vannière, Boris Glur, Lukas Chapron, Emmanuel Magny, Michel Anselmetti, Flavio S. |
author_sort |
Wirth, Stefanie B. |
title |
A 2000 year long seasonal record of floods in the southern European Alps |
title_short |
A 2000 year long seasonal record of floods in the southern European Alps |
title_full |
A 2000 year long seasonal record of floods in the southern European Alps |
title_fullStr |
A 2000 year long seasonal record of floods in the southern European Alps |
title_full_unstemmed |
A 2000 year long seasonal record of floods in the southern European Alps |
title_sort |
2000 year long seasonal record of floods in the southern european alps |
publishDate |
2013 |
url |
https://archive-ouverte.unige.ch/unige:30130 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
ISSN: 0094-8276 Geophysical research letters, Vol. 40, No 15 (2013) pp. 4025-4029 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/grl.50741 unige:30130 https://archive-ouverte.unige.ch/unige:30130 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1002/grl.50741 |
container_title |
Geophysical Research Letters |
container_volume |
40 |
container_issue |
15 |
container_start_page |
4025 |
op_container_end_page |
4029 |
_version_ |
1766131385479725056 |