FN Archimer Export Format
PT J
TI Dansgaard-Oeschger and Heinrich event temperature anomalies in the North Atlantic set by sea ice, frontal position and thermocline structure
BT 
AF Pedro, J.B.
   Andersson, C.
   Vettoretti, G.
   Voelker, A.H.L.
   Waelbroeck, C.
   Dokken, T.M.
   Jensen, M.F.
   Rasmussen, S.O.
   Sessford, E.G.
   Jochum, M.
   Nisancioglu, K.H.
AS 1:1,2,3;2:4;3:3;4:5,6;5:7;6:8,9;7:8;8:3;9:8;10:3;11:8,9,10;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;
C1 Australian Antarctic Division, Kingston, Tasmania, Australia
   Australian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
   Physics of Ice, Climate and Earth, University of Copenhagen, Copenhagen, Denmark
   NORCE Norwegian Research Centre AS, Bjerknes Centre for Climate Research, Bergen, Norway
   Divisao Geologia e Georecursos Marinhos, Instituto Portugues Do Mar e da Atmosfera, Alges, Portugal
   Centre of Marine Sciences (CCMAR), University of the Algarve, Faro, Portugal
   Sorbonne Université, CNRS-IRD-MNHN (LOCEAN UMR 7159), Paris, France
   Department of Earth Science, University of Bergen, Bergen, Norway
   Bjerknes Centre for Climate Research, Bergen, Norway
   Center for Earth Evolution and Dynamics, University of Oslo, Oslo, Norway
C2 AUSTRALIAN ANTARCTIC DIV, AUSTRALIA
   UNIV TASMANIA, AUSTRALIA
   UNIV COPENHAGEN, DENMARK
   NORCE, NORWAY
   IPMA, PORTUGAL
   UNIV ALGARVE, PORTUGAL
   UNIV SORBONNE, FRANCE
   UNIV BERGEN, NORWAY
   BCCR, NORWAY
   UNIV OSLO, NORWAY
IF 4
TC 12
UR https://archimer.ifremer.fr/doc/00779/89088/94681.pdf
   https://archimer.ifremer.fr/doc/00779/89088/94683.zip
LA English
DT Article
CR IMAGES 1-MD101
   MD 114 / IMAGES V GINNA
   MD 123 / GEOSCIENCES 1
BO Marion Dufresne
DE ;Dansgaard-Oeschger event;Heinrich event;abrupt climate change;marine sediment core;ice core;sea ice
AB We use eighteen timescale-synchronised near-surface temperature reconstructions spanning 10–50 thousand years before present to clarify the regional expression of Dansgaard-Oeschger (D-O) and Heinrich (H) events in the North Atlantic. The North Atlantic Drift region shows D-O temperature variations of ca. 2–5° with Greenland-like structure. The Western Iberian Margin region also shows Greenland-like structure, but with more pronounced surface cooling between interstadials and Heinrich stadials (ca. 6–9 °C) than between interstadials and non-Heinrich stadials (ca. 2–3 °C). The southern Nordic Seas show smaller D-O temperature anomalies (ca. 1–2 °C) that appear out of phase with Greenland. These spatial patterns are replicated in a new global climate model simulation that features unforced (D-O-like) and freshwater forced (H-like) abrupt climate changes. The model simulations and observations suggest consistently that the spatial expression and amplitude of D-O and H event temperature anomalies are dominated by coupled changes in the Atlantic Meridional Overturning, sea ice extent, polar front position and thermocline structure. 
PY 2022
PD AUG
SO Quaternary Science Reviews
SN 0277-3791
PU Elsevier BV
VL 289
UT 000823273500001
DI 10.1016/j.quascirev.2022.107599
ID 89088
ER

EF