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Holocene climate in the Atlantic sector of the Southern Ocean: Controlled by insolation or oceanic circulation?

2004; Geological Society of America; Volume: 32; Issue: 4 Linguagem: Inglês

10.1130/g20334.1

1943-2682

Simon H.H. Nielsen, Nalân Koç, Xavier Crosta,

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Research Article| April 01, 2004 Holocene climate in the Atlantic sector of the Southern Ocean: Controlled by insolation or oceanic circulation? Simon H.H. Nielsen; Simon H.H. Nielsen 1Norwegian Polar Institute, the Polar Environmental Center, N-9296 Tromsø, Norway Search for other works by this author on: GSW Google Scholar Nalân Koç; Nalân Koç 1Norwegian Polar Institute, the Polar Environmental Center, N-9296 Tromsø, Norway Search for other works by this author on: GSW Google Scholar Xavier Crosta Xavier Crosta 2Département Géologie et Océanographie, UMR Centre National de la Recherche Scientifique 5805 EPOC, Université de Bordeaux I, Avenue des Facultés, 33405 Talence cedex, France Search for other works by this author on: GSW Google Scholar Author and Article Information Simon H.H. Nielsen 1Norwegian Polar Institute, the Polar Environmental Center, N-9296 Tromsø, Norway Nalân Koç 1Norwegian Polar Institute, the Polar Environmental Center, N-9296 Tromsø, Norway Xavier Crosta 2Département Géologie et Océanographie, UMR Centre National de la Recherche Scientifique 5805 EPOC, Université de Bordeaux I, Avenue des Facultés, 33405 Talence cedex, France Publisher: Geological Society of America Received: 24 Nov 2003 Revision Received: 17 Dec 2003 Accepted: 17 Dec 2003 First Online: 02 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2004) 32 (4): 317–320. https://doi.org/10.1130/G20334.1 Article history Received: 24 Nov 2003 Revision Received: 17 Dec 2003 Accepted: 17 Dec 2003 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Simon H.H. Nielsen, Nalân Koç, Xavier Crosta; Holocene climate in the Atlantic sector of the Southern Ocean: Controlled by insolation or oceanic circulation?. Geology 2004;; 32 (4): 317–320. doi: https://doi.org/10.1130/G20334.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract The Holocene climate of the Southern Ocean is not well understood, mainly because of the lack of high-resolution reconstructions of ocean surface properties. Here we present a 12,500-yr-long, decadal-scale record of Holocene sea-surface temperatures and sea- ice presence from the Polar Front of the East Atlantic Southern Ocean. The record shows gradual climate change, with no abrupt Neoglacial cooling, and an unprecedented late Holocene warming. The dominant forcing factor appears to be precessional insolation; Northern Hemisphere summer insolation correlates to at least the early to middle Holocene climate trend. Spectral analysis reveals centennial-scale cyclic climate changes with periods of 1220, 1070, 400, and 150 yr. The record shows good correlation to East Antarctic ice cores and to climate records from South Georgia and Bunger Oasis. However, the record shows out-of-phase behavior with regard to climate records from the western Antarctic Peninsula and the Peru-Chile Current; such behavior hints at a climatic divide through Patagonia, the Drake Passage, and between West and East Antarctica. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.