dc.date.accessioned | 2019-12-05T20:12:31Z | |
dc.date.available | 2019-12-05T20:12:31Z | |
dc.date.created | 2019-01-07T14:24:27Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | Martin, Leo Celestin Paul Blard, Pierre-Henri Lavé, Jérôme Condom, Thomas Prémaillon, Mélody Jomelli, Vincent Brunstein, Daniel Lupker, Maarten Charreau, Julien Mariotti, Véronique Tibary, Bouchaïb Team, ASTER Davy, Emmanuel . Lake Tauca highstand (Heinrich Stadial 1a) driven by a southward shift of the Bolivian High. Science Advances. 2018, 4(8) | |
dc.identifier.uri | http://hdl.handle.net/10852/71231 | |
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. | |
dc.language | EN | |
dc.publisher | American Association for the Advancement of Science | |
dc.rights | Attribution-NonCommercial 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc/4.0/ | |
dc.title | Lake Tauca highstand (Heinrich Stadial 1a) driven by a southward shift of the Bolivian High | |
dc.type | Journal article | |
dc.creator.author | Martin, Leo Celestin Paul | |
dc.creator.author | Blard, Pierre-Henri | |
dc.creator.author | Lavé, Jérôme | |
dc.creator.author | Condom, Thomas | |
dc.creator.author | Prémaillon, Mélody | |
dc.creator.author | Jomelli, Vincent | |
dc.creator.author | Brunstein, Daniel | |
dc.creator.author | Lupker, Maarten | |
dc.creator.author | Charreau, Julien | |
dc.creator.author | Mariotti, Véronique | |
dc.creator.author | Tibary, Bouchaïb | |
dc.creator.author | Team, ASTER | |
dc.creator.author | Davy, Emmanuel | |
cristin.unitcode | 185,15,22,60 | |
cristin.unitname | Seksjon for naturgeografi og hydrologi | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |
dc.identifier.cristin | 1651635 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Science Advances&rft.volume=4&rft.spage=&rft.date=2018 | |
dc.identifier.jtitle | Science Advances | |
dc.identifier.volume | 4 | |
dc.identifier.issue | 8 | |
dc.identifier.doi | https://doi.org/10.1126/sciadv.aar2514 | |
dc.identifier.urn | URN:NBN:no-74335 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 2375-2548 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/71231/1/eaar2514.full.pdf | |
dc.type.version | PublishedVersion | |
cristin.articleid | eaar2514 | |