FN Archimer Export Format
PT J
TI North Atlantic climate and deep-ocean flow speed changes during the last 230 years
BT 
AF BOESSENKOOL, K. P.
   HALL, I. R.
   ELDERFIELD, H.
   YASHAYAEV, I.
AS 1:1;2:1;3:2;4:3;
FF 1:;2:;3:;4:;
C1 Univ Cardiff Wales, Sch Earth Ocean & Planetary Sci, Cardiff CF10 3YE, Wales.
   Univ Cambridge, Dept Earth Sci, Cambridge CB2 3EQ, England.
   Fisheries & Oceans Canada, Bedford Inst Oceanog, Dartmouth, NS B2Y 4A2, Canada.
C2 UNIV CARDIFF WALES, UK
   UNIV CAMBRIDGE, UK
   BEDFORD INST OCEANOG, CANADA
IF 2.744
TC 55
UR https://archimer.ifremer.fr/doc/00235/34646/33007.pdf
LA English
DT Article
CR IMAGES V LEG 1-MD114
   IMAGES V LEG 4-MD114
BO Marion Dufresne
DE ;deep ocean circulation;North Atlantic Oscillation;drift sediments
AB Variations in the near-bottom flow speed of Iceland-Scotland Overflow Water (ISOW) are documented in a 230-year-long deep-sea sediment record from the eastern flank of Reykjanes Ridge in the subpolar North Atlantic at (sub) decadal time scales. For recent decades, the ISOW palaeocurrent reconstructions show similarities with observational hydrographic data. Furthermore, recent ISOW flow changes fall mostly within the range of its variability of the past 230 years. The record also reveals a hitherto unrecognized coupling of deep flow speeds in the subpolar North Atlantic with the North Atlantic Oscillation (NAO) index, with more (less) vigorous ISOW flow during negative (positive) phases of the NAO. Our results suggest that the changes in ISOW vigor are largely controlled by the transport and characteristics of Labrador Sea Water rather than variations in the overflow itself, with implications for the meridional overturning of the Atlantic Ocean and climate.
PY 2007
PD JUN
SO Geophysical Research Letters
SN 0094-8276
PU Amer Geophysical Union
VL 34
IS 13/L13614
UT 000248024800006
BP 1
EP 6
DI 10.1029/2007GL030285
ID 34646
ER

EF