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dc.contributor.authorProhaska, Ana
dc.contributor.authorSeddon, Alistair William Robin
dc.contributor.authorMeese, Bernd
dc.contributor.authorWillis, Katherine Jane
dc.contributor.authorChiang, John C. H.
dc.contributor.authorSachse, Dirk
dc.date.accessioned2023-09-11T13:04:02Z
dc.date.available2023-09-11T13:04:02Z
dc.date.created2023-08-30T11:03:46Z
dc.date.issued2023
dc.identifier.issn2662-4435
dc.identifier.urihttps://hdl.handle.net/11250/3088696
dc.description.abstractThe mean state of the tropical Pacific ocean-atmosphere climate, in particular its east-west asymmetry, has profound consequences for regional climates and for the El Niño/Southern Oscillation variability. Here we present a new high-resolution paleohydrological record using the stable-hydrogen-isotopic composition of terrestrial-lipid biomarkers (δDwax) from a 1,400-year-old lake sedimentary sequence from northern Philippines. Results show a dramatic and abrupt increase in δDwax values around 1630 AD with sustained high values until around 1900 AD. We interpret this change as a shift to significantly drier conditions in the western tropical Pacific during the second half of the Little Ice Age as a result of a change in tropical Pacific mean state tied to zonal sea surface temperature (SST) gradients. Our findings highlight the prominent role of abrupt shifts in zonal SST gradients on multidecadal to multicentennial timescales in shaping the tropical Pacific hydrology of the last millennium, and demonstrate that a marked transition in the tropical Pacific mean state can occur within a period of a few decades.en_US
dc.language.isoengen_US
dc.publisherNatureen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleAbrupt change in tropical Pacific climate mean state during the Little Ice Ageen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2023 The Author(s)en_US
dc.source.articlenumber227en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.doi10.1038/s43247-023-00882-7
dc.identifier.cristin2170823
dc.source.journalCommunications Earth & Environmenten_US
dc.identifier.citationCommunications Earth & Environment. 2023, 4 (1), 227.en_US
dc.source.volume4en_US
dc.source.issue1en_US


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