FN Archimer Export Format
PT J
TI Influence of the North Atlantic subpolar gyre circulation on the 4.2 ka BP event
BT 
AF Jalali, Bassem
   Sicre, Marie-Alexandrine
   Azuara, Julien
   Pellichero, Violaine
   Combourieu-Nebout, Nathalie
AS 1:1;2:1;3:2;4:1;5:2;
FF 1:;2:;3:;4:;5:;
C1 LOCEAN Laboratory, Sorbonne Universités (UPMC, Univ Paris 06)-CNRS-IRD-MNHN, Paris, France
   Histoire naturelle de l'Homme Préhistorique (UMR 7194 CNRS), Département Homme et Environnement, Muséum national d'Histoire naturelle, Institut de Paléontologie humaine,Paris, France
C2 UNIV PARIS 06, FRANCE
   MNHN, FRANCE
IF 3.536
TC 12
UR https://archimer.ifremer.fr/doc/00488/60005/63242.pdf
   https://archimer.ifremer.fr/doc/00488/60005/63243.pdf
   https://archimer.ifremer.fr/doc/00488/60005/63244.pdf
LA English
DT Article
CR GMO2 - CARNAC
   IMAGES 1-MD101
   IMAGES V LEG 1-MD114
   IMAGES V LEG 4-MD114
   IMAGES V LEG 5
BO Le Suroît
   Marion Dufresne
AB The 4.2 ka BP event, spanning from ca 4200 to 3900 cal BP, has been documented in numerous archaeological data and continental archives across the Northern Hemisphere as an abrupt shift to dry and cold climate. However, data on synchronous ocean circulation changes are notably lacking, thus preventing us from getting a full insight into the physical mechanisms responsible for this climate deterioration. Here, we present two high-resolution (5–20 years) sea surface temperature (SST) records from the subpolar gyre and off north Iceland in the vicinity of the polar front obtained from alkenone paleo-thermometry and compare them with proxy data from the western Mediterranean Sea to gain information on regional temperature and precipitation patterns. Our results are evidence of a temperature dipole pattern which, combined with other paleo-oceanographic records of the North Atlantic, suggests a weakening of the subpolar gyre possibly associated with atmospheric blocked regimes. 
PY 2019
PD APR
SO Climate Of The Past
SN 1814-9324
PU Copernicus GmbH
VL 15
IS 2
UT 000463863900001
BP 701
EP 711
DI 10.5194/cp-15-701-2019
ID 60005
ER

EF