{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T10:35:51Z","timestamp":1753871751544,"version":"3.41.2"},"reference-count":74,"publisher":"American Geophysical Union (AGU)","issue":"2","license":[{"start":{"date-parts":[[2025,2,6]],"date-time":"2025-02-06T00:00:00Z","timestamp":1738800000000},"content-version":"vor","delay-in-days":5,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["agupubs.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Paleoceanog and Paleoclimatol"],"published-print":{"date-parts":[[2025,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>In this multiproxy study, we used new isotopic data on planktonic foraminifera to highlight the strong instability that characterized surface conditions in the Iceland Basin during Marine Isotope Stage 11 (MIS 11). We produced new oxygen isotope data on the planktonic species <jats:italic>Neogloboquadrina incompta<\/jats:italic> and <jats:italic>Turborotalita quinqueloba<\/jats:italic>, foraminifera\u2010bound nitrogen isotope data on <jats:italic>N. incompta<\/jats:italic>, and calcareous nannofossil data at coring site IODP Site U1314. The multiproxy record displays two distinct upper ocean regimes: a relatively stable pre\u2010climate optimum and an unstable post\u2010climate optimum with high amplitude variations in nutrient utilization and seasonality proxies, and strong enrichment in oxygen isotopes suggesting colder and\/or saltier upper waters. The latter regime was concomitant with a resurgence in ice\u2010rafted debris. Interestingly, this surface instability is not observed in cores from sites affected by the North Atlantic Current. Moreover, deep water ventilation is reconstructed to decrease throughout the eastern North Atlantic, while remaining rather constant in the Labrador Sea. The evidence presented here indicates that deep\u2010water formation was unstable throughout MIS 11, and that peak periods of deep\u2010water formation varied across high latitude North Atlantic basins, depending on the prevailing surface conditions in each region. These findings suggest that reconstructing deep\u2010water formation and ventilation require a comprehensive approach that accounts for the interconnectivity between different components of the overturning circulation system.<\/jats:p>","DOI":"10.1029\/2024pa004935","type":"journal-article","created":{"date-parts":[[2025,2,6]],"date-time":"2025-02-06T09:00:33Z","timestamp":1738832433000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Upper Ocean Instability in the Subpolar North Atlantic and Its Implications for Deep Water Formation During Interglacials"],"prefix":"10.1029","volume":"40","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0422-2308","authenticated-orcid":false,"given":"Benoit","family":"Thibodeau","sequence":"first","affiliation":[{"name":"Department of Earth and Environmental The Chinese University of Hong Kong  Sha Tin Hong Kong"},{"name":"School of Life Sciences The Chinese University of Hong Kong  Sha Tin Hong Kong"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5868-4885","authenticated-orcid":false,"given":"John M.","family":"Doherty","sequence":"additional","affiliation":[{"name":"School of Life Sciences The Chinese University of Hong Kong  Sha Tin Hong Kong"},{"name":"Now at Environmental Law Institute and The Earth Commons, Georgetown University  Washington DC USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0241-2178","authenticated-orcid":false,"given":"Montserrat","family":"Alonso\u2010Garc\u00eda","sequence":"additional","affiliation":[{"name":"Department of Geology\u2010 Paleontology University of Salamanca  Salamanca Spain"},{"name":"CCMAR Centro de Ci\u00eancias do Mar Universidade do Algarve  Faro Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8539-3007","authenticated-orcid":false,"given":"Shraddha","family":"Band","sequence":"additional","affiliation":[{"name":"Department of Geosciences National Taiwan University  Taipei Taiwan"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1282-3744","authenticated-orcid":false,"given":"Alba","family":"Gonz\u00e1lez\u2010Lanchas","sequence":"additional","affiliation":[{"name":"Department of Earth Sciences Oxford University  Oxford UK"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1386-6079","authenticated-orcid":false,"given":"Christelle","family":"Not","sequence":"additional","affiliation":[{"name":"Department of Earth Sciences and Swire Institute of Marine Sciences The University of Hong Kong  Pokfulam Hong Kong"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1769-4243","authenticated-orcid":false,"given":"Haojia","family":"Ren","sequence":"additional","affiliation":[{"name":"Department of Geosciences National Taiwan University  Taipei Taiwan"}]}],"member":"13","published-online":{"date-parts":[[2025,2,6]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.palaeo.2011.09.004"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.quascirev.2011.08.005"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1029\/93GB03396"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature14330"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.quascirev.2011.05.012"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/0277\u20103791(91)90033\u2010Q"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1076120"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0025\u20103227(99)00139\u20105"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1021\/ac00199a007"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/2015RG000493"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.earscirev.2013.09.006"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1029\/2008PA001708"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1038\/375285a0"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1184119"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1153929"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1038\/ngeo527"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.quascirev.2021.107231"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.3389\/fmars.2018.00251"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1029\/137GM01"},{"key":"e_1_2_7_21_1","doi-asserted-by":"publisher","DOI":"10.2307\/1485832"},{"key":"e_1_2_7_22_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.aay6381"},{"key":"e_1_2_7_23_1","doi-asserted-by":"publisher","DOI":"10.1029\/2021PA004246"},{"key":"e_1_2_7_24_1","doi-asserted-by":"publisher","DOI":"10.1029\/2020PA004175"},{"key":"e_1_2_7_25_1","doi-asserted-by":"publisher","DOI":"10.5194\/cp\u201012\u20101805\u20102016"},{"key":"e_1_2_7_26_1","doi-asserted-by":"publisher","DOI":"10.1029\/93pa02751"},{"key":"e_1_2_7_27_1","doi-asserted-by":"publisher","DOI":"10.1029\/92PA02253"},{"key":"e_1_2_7_28_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1911902116"},{"key":"e_1_2_7_29_1","doi-asserted-by":"publisher","DOI":"10.1029\/2009PA001849"},{"key":"e_1_2_7_30_1","doi-asserted-by":"publisher","DOI":"10.5194\/bg\u201012\u20102207\u20102015"},{"key":"e_1_2_7_31_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.yqres.2007.07.009"},{"key":"e_1_2_7_32_1","doi-asserted-by":"publisher","DOI":"10.1038\/srep46192"},{"key":"e_1_2_7_33_1","doi-asserted-by":"publisher","DOI":"10.1029\/RG021i001p00001"},{"key":"e_1_2_7_34_1","first-page":"PP53D\u20101230","volume-title":"AGU Fall Meeting Abstracts, 2018","author":"Kotov S.","year":"2018"},{"key":"e_1_2_7_35_1","doi-asserted-by":"publisher","DOI":"10.5194\/bg\u201015\u20104405\u20102018"},{"key":"e_1_2_7_36_1","unstructured":"Link J. M.(2022).Atlantic deep circulation during marine isotope stage 11 and the last one million years Inferred from neodymium isotopes[Dissertation].https:\/\/doi.org\/10.11588\/heidok.00032226"},{"key":"e_1_2_7_37_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00382\u2010017\u20103849\u20109"},{"key":"e_1_2_7_38_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41558\u2010018\u20100316\u20105"},{"key":"e_1_2_7_39_1","doi-asserted-by":"publisher","DOI":"10.1029\/2010GL045109"},{"key":"e_1_2_7_40_1","doi-asserted-by":"publisher","DOI":"10.1002\/2013PA002505"},{"key":"e_1_2_7_41_1","doi-asserted-by":"publisher","DOI":"10.1029\/2004PA001071"},{"key":"e_1_2_7_42_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0921\u20108181(02)00186\u20108"},{"key":"e_1_2_7_43_1","doi-asserted-by":"publisher","DOI":"10.1029\/2018PA003475"},{"key":"e_1_2_7_44_1","doi-asserted-by":"publisher","DOI":"10.5194\/gchron\u20106\u2010125\u20102024"},{"key":"e_1_2_7_45_1","doi-asserted-by":"publisher","DOI":"10.1002\/2017GC007111"},{"key":"e_1_2_7_46_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.yqres.2016.09.002"},{"key":"e_1_2_7_47_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.279.5355.1335"},{"key":"e_1_2_7_48_1","doi-asserted-by":"publisher","DOI":"10.1029\/2005GB002448"},{"key":"e_1_2_7_49_1","doi-asserted-by":"publisher","DOI":"10.1029\/2020GL091028"},{"volume-title":"Proceedings of the IODP, 303\/306","year":"2006","author":"Proceedings of the IODP, 303\/306","key":"e_1_2_7_50_1"},{"key":"e_1_2_7_51_1","first-page":"735","volume-title":"Developments in marine geology","author":"Ravelo A. C.","year":"2007"},{"key":"e_1_2_7_52_1","doi-asserted-by":"publisher","DOI":"10.1029\/97PA01169"},{"key":"e_1_2_7_53_1","doi-asserted-by":"publisher","DOI":"10.1038\/43639b"},{"key":"e_1_2_7_54_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1701315114"},{"key":"e_1_2_7_55_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature13456"},{"key":"e_1_2_7_56_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.quascirev.2017.07.004"},{"key":"e_1_2_7_57_1","doi-asserted-by":"publisher","DOI":"10.1130\/0016\u20107606(1977)88<1813:LQDOIS>2.0.CO;2"},{"key":"e_1_2_7_58_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1120130"},{"key":"e_1_2_7_59_1","doi-asserted-by":"publisher","DOI":"10.1021\/ac010088e"},{"key":"e_1_2_7_60_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.marmicro.2012.06.006"},{"key":"e_1_2_7_61_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0377\u20108398(02)00165\u20102"},{"key":"e_1_2_7_62_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.gca.2018.05.023"},{"key":"e_1_2_7_63_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.palaeo.2010.04.002"},{"key":"e_1_2_7_64_1","doi-asserted-by":"publisher","DOI":"10.1002\/palo.20013"},{"key":"e_1_2_7_65_1","doi-asserted-by":"publisher","DOI":"10.1029\/2020PA004063"},{"key":"e_1_2_7_66_1","doi-asserted-by":"publisher","unstructured":"Thibodeau B.(2025).Upper ocean instability in the subpolar North Atlantic and its implications for deep water formation during interglacials[Dataset].CUHK Research Data Repository. V1.https:\/\/doi.org\/10.48668\/9AKTCT","DOI":"10.48668\/9AKTCT"},{"key":"e_1_2_7_67_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.epsl.2016.09.060"},{"key":"e_1_2_7_68_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.quascirev.2022.107493"},{"key":"e_1_2_7_69_1","doi-asserted-by":"publisher","DOI":"10.1016\/0967\u20100637(94)00042\u2010Q"},{"key":"e_1_2_7_70_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.epsl.2013.03.036"},{"key":"e_1_2_7_71_1","doi-asserted-by":"publisher","DOI":"10.5194\/cp\u20106\u2010531\u20102010"},{"key":"e_1_2_7_72_1","doi-asserted-by":"publisher","DOI":"10.1002\/rcm.7570"},{"key":"e_1_2_7_73_1","doi-asserted-by":"publisher","DOI":"10.1016\/0031\u20100182(81)90033\u2010X"},{"key":"e_1_2_7_74_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.quascirev.2016.04.010"},{"key":"e_1_2_7_75_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.quascirev.2017.03.026"}],"container-title":["Paleoceanography and Paleoclimatology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/agupubs.onlinelibrary.wiley.com\/doi\/pdf\/10.1029\/2024PA004935","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,3,12]],"date-time":"2025-03-12T08:26:26Z","timestamp":1741767986000},"score":1,"resource":{"primary":{"URL":"https:\/\/agupubs.onlinelibrary.wiley.com\/doi\/10.1029\/2024PA004935"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,2]]},"references-count":74,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2025,2]]}},"alternative-id":["10.1029\/2024PA004935"],"URL":"https:\/\/doi.org\/10.1029\/2024pa004935","archive":["Portico"],"relation":{},"ISSN":["2572-4517","2572-4525"],"issn-type":[{"type":"print","value":"2572-4517"},{"type":"electronic","value":"2572-4525"}],"subject":[],"published":{"date-parts":[[2025,2]]},"assertion":[{"value":"2024-06-05","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-01-26","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-02-06","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e2024PA004935"}}