Large-scale experiments into the tsunamigenic potential of different iceberg calving mechanisms
dc.contributor.author
Heller, Valentin
dc.contributor.author
Chen, Fan
dc.contributor.author
Brühl, Markus
dc.contributor.author
Gabl, Roman
dc.contributor.author
Chen, Xuexue
dc.contributor.author
Wolters, Guido
dc.contributor.author
Fuchs, Helge
dc.date.accessioned
2019-02-08T09:53:06Z
dc.date.available
2019-02-07T04:27:49Z
dc.date.available
2019-02-08T09:53:06Z
dc.date.issued
2019
dc.identifier.issn
2045-2322
dc.identifier.other
10.1038/s41598-018-36634-3
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/323483
dc.identifier.doi
10.3929/ethz-b-000323483
dc.description.abstract
Mass balance analysis of ice sheets is a key component to understand the effects of global warming. A significant component of ice sheet and shelf mass balance is iceberg calving, which can generate large tsunamis endangering human beings and coastal infrastructure. Such iceberg-tsunamis have reached amplitudes of 50 m and destroyed harbours. Calving icebergs interact with the surrounding water through different mechanisms and we investigate five; A: capsizing, B: gravity-dominated fall, C: buoyancy-dominated fall, D: gravity-dominated overturning and E: buoyancy-dominated overturning. Gravity-dominated icebergs essentially fall into the water body whereas buoyancy-dominated icebergs rise to the water surface. We find with unique large-scale laboratory experiments that iceberg-tsunami heights from gravity-dominated mechanisms (B and D) are roughly an order of magnitude larger than from A, C and E. A theoretical model for released iceberg energy supports this finding and the measured wave periods upscaled to Greenlandic outlet glaciers agree with field observations. Whilst existing empirical equations for landslide-tsunamis establish estimates of an upper envelope of the maximum iceberg-tsunami heights, they fail to capture the physics of most iceberg-tsunami mechanisms.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Nature
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
Large-scale experiments into the tsunamigenic potential of different iceberg calving mechanisms
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2019-01-29
ethz.journal.title
Scientific Reports
ethz.journal.volume
9
en_US
ethz.journal.issue
1
en_US
ethz.journal.abbreviated
Sci Rep
ethz.pages.start
861
en_US
ethz.size
10 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
London
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02611 - V. Wasserbau, Hydrologie u. Glaziologie / Lab. Hydraulics,Hydrology,Glaciology::03820 - Boes, Robert / Boes, Robert
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02611 - V. Wasserbau, Hydrologie u. Glaziologie / Lab. Hydraulics,Hydrology,Glaciology::03820 - Boes, Robert / Boes, Robert
ethz.date.deposited
2019-02-07T04:27:52Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2019-02-08T09:53:27Z
ethz.rosetta.lastUpdated
2024-02-02T07:08:15Z
ethz.rosetta.versionExported
true
ethz.COinS
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