A millennium-long reconstruction of damaging hydrological events across Italy

Abstract Damaging hydrological events are extreme phenomena with potentially severe impacts on human societies. Here, we present the hitherto longest reconstruction of damaging hydrological events for Italy, and for the whole Mediterranean region, revealing 674 such events over the period 800–2017....

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Autores principales:	Nazzareno Diodato, Fredrik Charpentier Ljungqvist, Gianni Bellocchi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7b3ed8ee7e9441b4875c806f547fd281
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id	oai:doaj.org-article:7b3ed8ee7e9441b4875c806f547fd281
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spelling	oai:doaj.org-article:7b3ed8ee7e9441b4875c806f547fd2812021-12-02T15:08:58ZA millennium-long reconstruction of damaging hydrological events across Italy10.1038/s41598-019-46207-72045-2322https://doaj.org/article/7b3ed8ee7e9441b4875c806f547fd2812019-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-46207-7https://doaj.org/toc/2045-2322Abstract Damaging hydrological events are extreme phenomena with potentially severe impacts on human societies. Here, we present the hitherto longest reconstruction of damaging hydrological events for Italy, and for the whole Mediterranean region, revealing 674 such events over the period 800–2017. For any given year, we established a severity index based on information in historical documentary records, facilitating the transformation of the data into a continuous time-series. Episodes of hydrological extremes disrupted ecosystems during the more severe events by changing landforms. The frequency and severity of damaging hydrological events across Italy were likely influenced by the mode of the Atlantic Multidecadal Variability (AMV), with relatively few events during the warm Medieval Climate Anomaly dominated by a positive phase of the AMV. More frequent and heavier storms prevailed during the cold Little Ice Age, dominated by a more negative phase of the AMV. Since the mid-19th century, a decreasing occurrence of exceptional hydrological events is evident, especially during the most recent decades, but this decrease is not yet unprecedented in the context of the past twelve centuries.Nazzareno DiodatoFredrik Charpentier LjungqvistGianni BellocchiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-10 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Nazzareno Diodato Fredrik Charpentier Ljungqvist Gianni Bellocchi A millennium-long reconstruction of damaging hydrological events across Italy
description	Abstract Damaging hydrological events are extreme phenomena with potentially severe impacts on human societies. Here, we present the hitherto longest reconstruction of damaging hydrological events for Italy, and for the whole Mediterranean region, revealing 674 such events over the period 800–2017. For any given year, we established a severity index based on information in historical documentary records, facilitating the transformation of the data into a continuous time-series. Episodes of hydrological extremes disrupted ecosystems during the more severe events by changing landforms. The frequency and severity of damaging hydrological events across Italy were likely influenced by the mode of the Atlantic Multidecadal Variability (AMV), with relatively few events during the warm Medieval Climate Anomaly dominated by a positive phase of the AMV. More frequent and heavier storms prevailed during the cold Little Ice Age, dominated by a more negative phase of the AMV. Since the mid-19th century, a decreasing occurrence of exceptional hydrological events is evident, especially during the most recent decades, but this decrease is not yet unprecedented in the context of the past twelve centuries.
format	article
author	Nazzareno Diodato Fredrik Charpentier Ljungqvist Gianni Bellocchi
author_facet	Nazzareno Diodato Fredrik Charpentier Ljungqvist Gianni Bellocchi
author_sort	Nazzareno Diodato
title	A millennium-long reconstruction of damaging hydrological events across Italy
title_short	A millennium-long reconstruction of damaging hydrological events across Italy
title_full	A millennium-long reconstruction of damaging hydrological events across Italy
title_fullStr	A millennium-long reconstruction of damaging hydrological events across Italy
title_full_unstemmed	A millennium-long reconstruction of damaging hydrological events across Italy
title_sort	millennium-long reconstruction of damaging hydrological events across italy
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/7b3ed8ee7e9441b4875c806f547fd281
work_keys_str_mv	AT nazzarenodiodato amillenniumlongreconstructionofdamaginghydrologicaleventsacrossitaly AT fredrikcharpentierljungqvist amillenniumlongreconstructionofdamaginghydrologicaleventsacrossitaly AT giannibellocchi amillenniumlongreconstructionofdamaginghydrologicaleventsacrossitaly AT nazzarenodiodato millenniumlongreconstructionofdamaginghydrologicaleventsacrossitaly AT fredrikcharpentierljungqvist millenniumlongreconstructionofdamaginghydrologicaleventsacrossitaly AT giannibellocchi millenniumlongreconstructionofdamaginghydrologicaleventsacrossitaly
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A millennium-long reconstruction of damaging hydrological events across Italy

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