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dc.contributor.author
Martin, Léo C.P.
dc.contributor.author
Blard, Pierre H.
dc.contributor.author
Lavé, Jérôme
dc.contributor.author
Condom, Thomas
dc.contributor.author
Prémaillon, Mélody
dc.contributor.author
Jomelli, Vincent
dc.contributor.author
Brunstein, Daniel
dc.contributor.author
Lupker, Maarten
dc.contributor.author
Charreau, Julien
dc.contributor.author
Mariotti, Véronique
dc.contributor.author
Tibari, Bouchaïb
dc.contributor.author
ASTER Team
dc.contributor.author
Davy, Emmanuel
dc.date.accessioned
2018-09-10T07:40:13Z
dc.date.available
2018-09-10T07:23:18Z
dc.date.available
2018-09-10T07:40:13Z
dc.date.issued
2018-08-01
dc.identifier.other
10.1126/sciadv.aar2514
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/287946
dc.identifier.doi
10.3929/ethz-b-000287946
dc.description.abstract
Heinrich events are characterized by worldwide climate modifications. Over the Altiplano endorheic basin (high tropical Andes), the second half of Heinrich Stadial 1 (HS1a) was coeval with the highstand of the giant paleolake Tauca. However, the atmospheric mechanisms underlying this wet event are still unknown at the regional to global scale. We use cosmic-ray exposure ages of glacial landforms to reconstruct the spatial variability in the equilibrium line altitude of the HS1a Altiplano glaciers. By combining glacier and lake modeling, we reconstruct a precipitation map for the HS1a period. Our results show that paleoprecipitation mainly increased along the Eastern Cordillera, whereas the southwestern region of the basin remained relatively dry. This pattern indicates a southward expansion of the easterlies, which is interpreted as being a consequence of a southward shift of the Bolivian High. The results provide a new understanding of atmospheric teleconnections during HS1 and of rainfall redistribution in a changing climate.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
American Association for the Advancement of Science (AAAS)
en_US
dc.rights.uri
http://creativecommons.org/licenses/by-nc/4.0/
dc.title
Lake tauca highstand (heinrich stadial 1a) driven by a southward shift of the bolivian high
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution-NonCommercial 4.0 International
dc.date.published
2018-08-29
ethz.journal.title
Science Advances
ethz.journal.volume
4
en_US
ethz.journal.issue
8
en_US
ethz.pages.start
eaar2514
en_US
ethz.size
11 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Washington, DC
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::02704 - Geologisches Institut / Geological Institute::03868 - Eglinton, Timothy I. / Eglinton, Timothy I.
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02704 - Geologisches Institut / Geological Institute::03868 - Eglinton, Timothy I. / Eglinton, Timothy I.
ethz.date.deposited
2018-09-10T07:23:26Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2018-09-10T07:40:18Z
ethz.rosetta.lastUpdated
2019-02-03T07:49:24Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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