{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,17]],"date-time":"2026-04-17T14:48:47Z","timestamp":1776437327312,"version":"3.51.2"},"reference-count":62,"publisher":"Proceedings of the National Academy of Sciences","issue":"36","license":[{"start":{"date-parts":[[2023,8,28]],"date-time":"2023-08-28T00:00:00Z","timestamp":1693180800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"name":"European Union&apos;s Horizon 2020 research and innovation program","award":["grant agreement No. 820970"],"award-info":[{"award-number":["grant agreement No. 820970"]}]},{"name":"European Union&apos;s Horizon 2020 research and innovation programme","award":["grant agreement No. 956170"],"award-info":[{"award-number":["grant agreement No. 956170"]}]},{"name":"Portuguese Foundation for Science and Technology","award":["UID\/00350\/2020 CIMA"],"award-info":[{"award-number":["UID\/00350\/2020 CIMA"]}]},{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["395588486"],"award-info":[{"award-number":["395588486"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]},{"name":"German federal ministry of Education and Research","award":["01LP1926C"],"award-info":[{"award-number":["01LP1926C"]}]}],"content-domain":{"domain":["www.pnas.org"],"crossmark-restriction":true},"short-container-title":["Proc. Natl. Acad. Sci. U.S.A."],"published-print":{"date-parts":[[2023,9,5]]},"abstract":"<jats:p>\n            Ice core records from Greenland provide evidence for multiple abrupt cold\u2013warm\u2013cold events recurring at millennial time scales during the last glacial interval. Although climate variations resembling Dansgaard\u2013Oeschger (DO) oscillations have been identified in climate archives across the globe, our understanding of the climate and ecosystem impacts of the Greenland warming events in lower latitudes remains incomplete. Here, we investigate the influence of DO-cold-to-warm transitions on the global atmospheric circulation pattern. We comprehensively analyze \u03b4\n            <jats:sup>18<\/jats:sup>\n            O changes during DO transitions in a globally distributed dataset of speleothems and set those in context with simulations of a comprehensive high-resolution climate model featuring internal millennial-scale variations of similar magnitude. Across the globe, speleothem \u03b4\n            <jats:sup>18<\/jats:sup>\n            O signals and model results indicate consistent large-scale changes in precipitation amount, moisture source, or seasonality of precipitation associated with the DO transitions, in agreement with northward shifts of the Hadley circulation. Furthermore, we identify a decreasing trend in the amplitude of DO transitions with increasing distances from the North Atlantic region. This provides quantitative observational evidence for previous suggestions of the North Atlantic region being the focal point for these archetypes of past abrupt climate changes.\n          <\/jats:p>","DOI":"10.1073\/pnas.2302283120","type":"journal-article","created":{"date-parts":[[2023,8,28]],"date-time":"2023-08-28T19:12:27Z","timestamp":1693249947000},"update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":22,"title":["Global reorganization of atmospheric circulation during Dansgaard\u2013Oeschger cycles"],"prefix":"10.1073","volume":"120","author":[{"given":"Jens","family":"Fohlmeister","sequence":"first","affiliation":[{"name":"Potsdam Institute for Climate Impact Research, 14473 Potsdam, Germany"}]},{"given":"Natasha","family":"Sekhon","sequence":"additional","affiliation":[{"name":"Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912"},{"name":"Institute at Brown for Environment and Society, Brown University, Providence, RI 02912"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5410-062X","authenticated-orcid":false,"given":"Andrea","family":"Columbu","sequence":"additional","affiliation":[{"name":"Department of Earth Sciences, University of Pisa, 56126 Pisa, Italy"}]},{"given":"Guido","family":"Vettoretti","sequence":"additional","affiliation":[{"name":"Physics of Ice, Climate and Earth, Niels Bohr Institute, University of Copenhagen, 2200 Copenhagen, Denmark"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2735-2992","authenticated-orcid":false,"given":"Nils","family":"Weitzel","sequence":"additional","affiliation":[{"name":"Department of Geosciences, University of T\u00fcbingen, 72076 T\u00fcbingen, Germany"},{"name":"Institute of Environmental Physics, Heidelberg University, 69120 Heidelberg, Germany"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9442-5362","authenticated-orcid":false,"given":"Kira","family":"Rehfeld","sequence":"additional","affiliation":[{"name":"Department of Geosciences, University of T\u00fcbingen, 72076 T\u00fcbingen, Germany"},{"name":"Institute of Environmental Physics, Heidelberg University, 69120 Heidelberg, Germany"},{"name":"Department of Physics, University of T\u00fcbingen, 72076 T\u00fcbingen, Germany"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9323-0723","authenticated-orcid":false,"given":"Cristina","family":"Veiga-Pires","sequence":"additional","affiliation":[{"name":"Centre for Marine and Environmental Research, Faculty of Sciences and Technology, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal"}]},{"given":"Maya","family":"Ben-Yami","sequence":"additional","affiliation":[{"name":"Potsdam Institute for Climate Impact Research, 14473 Potsdam, Germany"},{"name":"Earth System Modelling, School of Engineering &amp; Design, Technical University of Munich, Munich 80333, Germany"}]},{"given":"Norbert","family":"Marwan","sequence":"additional","affiliation":[{"name":"Potsdam Institute for Climate Impact Research, 14473 Potsdam, Germany"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1239-9034","authenticated-orcid":false,"given":"Niklas","family":"Boers","sequence":"additional","affiliation":[{"name":"Potsdam Institute for Climate Impact Research, 14473 Potsdam, Germany"},{"name":"Earth System Modelling, School of Engineering &amp; Design, Technical University of Munich, Munich 80333, Germany"},{"name":"Global Systems Institute, University of Exeter, Exeter EX4 4QF, UK"},{"name":"Department of Mathematics, University of Exeter, Exeter EX4 4QF, UK"}]}],"member":"341","published-online":{"date-parts":[[2023,8,28]]},"reference":[{"key":"e_1_3_4_1_2","doi-asserted-by":"publisher","DOI":"10.1038\/364218a0"},{"key":"e_1_3_4_2_2","doi-asserted-by":"publisher","DOI":"10.1038\/nature02805"},{"key":"e_1_3_4_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.quascirev.2014.09.007"},{"key":"e_1_3_4_4_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.291.5501.109"},{"key":"e_1_3_4_5_2","doi-asserted-by":"publisher","DOI":"10.1038\/nature14401"},{"key":"e_1_3_4_6_2","doi-asserted-by":"publisher","DOI":"10.1038\/365143a0"},{"key":"e_1_3_4_7_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.283.5404.971"},{"key":"e_1_3_4_8_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.1139994"},{"key":"e_1_3_4_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.quascirev.2017.05.020"},{"key":"e_1_3_4_10_2","doi-asserted-by":"publisher","DOI":"10.1038\/23432"},{"key":"e_1_3_4_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.quascirev.2006.09.002"},{"key":"e_1_3_4_12_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.1064618"},{"key":"e_1_3_4_13_2","doi-asserted-by":"publisher","DOI":"10.1029\/2009GL040050"},{"key":"e_1_3_4_14_2","doi-asserted-by":"publisher","DOI":"10.5194\/cp-16-29-2020"},{"key":"e_1_3_4_15_2","doi-asserted-by":"publisher","DOI":"10.1038\/35051500"},{"key":"e_1_3_4_16_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1807261116"},{"key":"e_1_3_4_17_2","doi-asserted-by":"publisher","DOI":"10.5194\/cp-10-887-2014"},{"key":"e_1_3_4_18_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.quascirev.2006.02.009"},{"key":"e_1_3_4_19_2","doi-asserted-by":"publisher","DOI":"10.1038\/ngeo754"},{"key":"e_1_3_4_20_2","doi-asserted-by":"publisher","DOI":"10.1038\/nature18591"},{"key":"e_1_3_4_21_2","doi-asserted-by":"publisher","DOI":"10.1038\/ncomms12247"},{"key":"e_1_3_4_22_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.aaf5529"},{"key":"e_1_3_4_23_2","doi-asserted-by":"publisher","DOI":"10.1029\/2009GL038068"},{"key":"e_1_3_4_24_2","doi-asserted-by":"publisher","DOI":"10.1038\/nature20787"},{"key":"e_1_3_4_25_2","doi-asserted-by":"publisher","DOI":"10.1175\/2010JCLI3409.1"},{"key":"e_1_3_4_26_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1802573115"},{"key":"e_1_3_4_27_2","doi-asserted-by":"publisher","DOI":"10.1002\/palo.20042"},{"key":"e_1_3_4_28_2","doi-asserted-by":"publisher","DOI":"10.1038\/ngeo2045"},{"key":"e_1_3_4_29_2","doi-asserted-by":"publisher","DOI":"10.1029\/PA005i006p00835"},{"key":"e_1_3_4_30_2","doi-asserted-by":"publisher","DOI":"10.5194\/cp-16-1565-2020"},{"key":"e_1_3_4_31_2","doi-asserted-by":"publisher","DOI":"10.1029\/92PA01058"},{"key":"e_1_3_4_32_2","doi-asserted-by":"publisher","DOI":"10.1029\/2003PA000920"},{"key":"e_1_3_4_33_2","doi-asserted-by":"publisher","DOI":"10.5194\/cp-14-1755-2018"},{"key":"e_1_3_4_34_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.aay5538"},{"key":"e_1_3_4_35_2","doi-asserted-by":"publisher","DOI":"10.5194\/essd-12-2579-2020"},{"key":"e_1_3_4_36_2","doi-asserted-by":"publisher","DOI":"10.1002\/2014GL061413"},{"key":"e_1_3_4_37_2","doi-asserted-by":"publisher","DOI":"10.1175\/JCLI-D-17-0559.1"},{"key":"e_1_3_4_38_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0016-7037(97)00169-5"},{"key":"e_1_3_4_39_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-019-08336-5"},{"key":"e_1_3_4_40_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.gca.2011.06.005"},{"key":"e_1_3_4_41_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-019-11027-w"},{"key":"e_1_3_4_42_2","doi-asserted-by":"publisher","DOI":"10.1038\/srep24374"},{"key":"e_1_3_4_43_2","doi-asserted-by":"crossref","unstructured":"G. Liu On the glacial-interglacial variability of the Asian monsoon in speleothem \u03b418O records. Sci. Adv. 6 eaay8189 (2020). eaay8189","DOI":"10.1126\/sciadv.aay8189"},{"key":"e_1_3_4_44_2","doi-asserted-by":"publisher","DOI":"10.1038\/ngeo1169"},{"key":"e_1_3_4_45_2","doi-asserted-by":"crossref","unstructured":"C. He Hydroclimate footprint of pan-Asian monsoon water isotope during the last deglaciation. Sci. 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McGee E. Moreno-Chamarro J. Marshall E. D. Galbraith Western US lake expansions during Heinrich stadials linked to Pacific Hadley circulation. Sci. Adv. 4 eaav0118 (2018). eaav0118","DOI":"10.1126\/sciadv.aav0118"},{"key":"e_1_3_4_58_2","doi-asserted-by":"crossref","unstructured":"C. He Abrupt Heinrich Stadial 1 cooling missing in Greenland oxygen isotopes. Sci. Adv. 7 eabh1007 (2021). eabh1007","DOI":"10.1126\/sciadv.abh1007"},{"key":"e_1_3_4_59_2","doi-asserted-by":"publisher","DOI":"10.1175\/JCLI-D-15-0369.1"},{"key":"e_1_3_4_60_2","doi-asserted-by":"publisher","DOI":"10.1029\/2020GL087518"},{"key":"e_1_3_4_61_2","unstructured":"L. Comas-Bru SISAL (Speleothem Isotopes Synthesis and AnaLysis Working Group) database version 2.0. University of Reading. Dataset. https:\/\/doi.org\/10.17864\/1947. 256 . Accessed 20 April 2020."},{"key":"e_1_3_4_62_2","unstructured":"J. Fohlmeister Code for DO analysis of SISAL data. Github. https:\/\/github.com\/jensfohlmeister\/Sisal_DO_analysis. Deposited 10 July 2023."}],"container-title":["Proceedings of the National Academy of Sciences"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pnas.org\/doi\/pdf\/10.1073\/pnas.2302283120","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,9,21]],"date-time":"2023-09-21T13:28:44Z","timestamp":1695302924000},"score":1,"resource":{"primary":{"URL":"https:\/\/pnas.org\/doi\/10.1073\/pnas.2302283120"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,8,28]]},"references-count":62,"journal-issue":{"issue":"36","published-print":{"date-parts":[[2023,9,5]]}},"alternative-id":["10.1073\/pnas.2302283120"],"URL":"https:\/\/doi.org\/10.1073\/pnas.2302283120","relation":{},"ISSN":["0027-8424","1091-6490"],"issn-type":[{"value":"0027-8424","type":"print"},{"value":"1091-6490","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,8,28]]},"assertion":[{"value":"2023-02-27","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2023-06-26","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2023-08-28","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e2302283120"}}