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dc.contributor.author
Vannière, Boris
dc.contributor.author
Magny, Michel
dc.contributor.author
Joannin, Sebastien
dc.contributor.author
Simonneau, Anaelle
dc.contributor.author
Wirth, Stefanie B.
dc.contributor.author
Hamann, Yvonne
dc.contributor.author
Chapron, Emmanuel
dc.contributor.author
Gilli, Adrian
dc.contributor.author
Desmet, Marc
dc.contributor.author
Anselmetti, Flavio S.
dc.date.accessioned
2019-06-25T08:36:09Z
dc.date.available
2017-06-10T20:50:30Z
dc.date.available
2019-06-25T08:36:09Z
dc.date.issued
2013
dc.identifier.issn
1814-9324
dc.identifier.issn
1814-9332
dc.identifier.other
10.5194/cp-9-1193-2013
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/71176
dc.identifier.doi
10.3929/ethz-b-000071176
dc.description.abstract
Two lacustrine sediment cores from Lake Ledro in northern Italy were studied to produce chronologies of flood events for the past 10 000 yr. For this purpose, we have developed an automatic method that objectively identifies the sedimentary imprint of river floods in the downstream lake basin. The method was based on colour data extracted from processed core photographs, and the count data were analysed to capture the flood signal. Flood frequency and reconstructed sedimentary dynamics were compared with lake-level changes and pollen inferred vegetation dynamics. The results suggest a record marked by low flood frequency during the early and middle Holocene (10 000–4500 cal BP). Only modest increases during short intervals are recorded at ca. 8000, 7500, and 7100 cal BP. After 4500–4000 cal BP, the record shows a shift toward increased flood frequency. With the exception of two short intervals around 2900–2500 and 1800–1400 cal BP, which show a slightly reduced number of floods, the trend of increasing flood frequency prevailed until the 20th century, reaching a maximum between the 16th and the 19th centuries. Brief-flood frequency increases recorded during the early and middle Holocene can be attributed to cold climatic oscillations. On a centennial time scale, major changes in flood frequency, such as those observed after ca. 4500/4000 and 500 cal BP, can be attributed to large-scale climatic changes such as the Neo-glacial and Little Ice Age, which are under orbital and possibly solar control. However, in the Bronze Age and during the Middle Ages and modern times, forest clearing and land use probably partially control the flood activity.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Copernicus
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/3.0/
dc.title
Orbital changes, variation in solar activity and increased anthropogenic activities: controls on the Holocene flood frequency in the Lake Ledro area, Northern Italy
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 3.0 Unported
dc.date.published
2013-05-31
ethz.journal.title
Climate of the Past
ethz.journal.volume
9
en_US
ethz.journal.issue
3
en_US
ethz.journal.abbreviated
Clim. past
ethz.pages.start
1193
en_US
ethz.pages.end
1209
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.identifier.nebis
005583758
ethz.publication.place
Göttingen
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::03775 - Haug, Gerald H. / Haug, Gerald H.
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::03775 - Haug, Gerald H. / Haug, Gerald H.
ethz.date.deposited
2017-06-10T20:52:34Z
ethz.source
ECIT
ethz.identifier.importid
imp593650f14384e16197
ethz.ecitpid
pub:112815
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-13T08:28:36Z
ethz.rosetta.lastUpdated
2021-02-15T04:52:50Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=Orbital%20changes,%20variation%20in%20solar%20activity%20and%20increased%20anthropogenic%20activities:%20controls%20on%20the%20Holocene%20flood%20frequency%20in%20the%20&rft.jtitle=Climate%20of%20the%20Past&rft.date=2013&rft.volume=9&rft.issue=3&rft.spage=1193&rft.epage=1209&rft.issn=1814-9324&1814-9332&rft.au=Vanni%C3%A8re,%20Boris&Magny,%20Michel&Joannin,%20Sebastien&Simonneau,%20Anaelle&Wirth,%20Stefanie%20B.&rft.genre=article&rft_id=info:doi/10.5194/cp-9-1193-2013&
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