FN Archimer Export Format
PT J
TI Antarctic Sea Ice Proxies from Marine and Ice Core Archives Suitable for Reconstructing Sea Ice over the past 2000 Years
BT 
AF Thomas, Elizabeh R
   Allen, Claire S
   Etourneau, Johan
   King, Amy CF
   Severi, Mirko
   Winton, V. Holly L.
   Mueller, Juliane
   Crosta, Xavier
   Peck, Victoria L.
AS 1:1;2:1;3:2,3;4:1;5:4;6:1;7:5;8:3;9:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;
C1 British Antarctic Survey, Cambridge CB3 0ET, UK
   Ecole Pratique des Hautes Etudes, PSL Research University, 75014 Paris, France
   UMR 5805 EPOC CNRS, University of Bordeaux, 33400 Talence, France
   Dipartimento di Chimica “Ugo Schiff”, University of Florence, 50019 Firenze, Italy
   Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, 27570 Bremerhaven, Germany
C2 BRITISH ANTARCTIC SURVEY, UK
   EPHE, FRANCE
   UNIV BORDEAUX, FRANCE
   UNIV FLORENCE, ITALY
   INST A WEGENER, GERMANY
IN DOAJ
TC 35
UR https://archimer.ifremer.fr/doc/00595/70709/68916.pdf
LA English
DT Article
CR MD 130 / CADO
BO Marion Dufresne
DE ;sea ice;Antarctica;paleoclimate;ice cores;marine sediments
AB Dramatic changes in sea ice have been observed in both poles in recent decades. However, the observational period for sea ice is short, and the climate models tasked with predicting future change in sea ice struggle to capture the current Antarctic trends. Paleoclimate archives, from marine sedimentary records and coastal Antarctic ice cores, provide a means of understanding sea ice variability and its drivers over decadal to centennial timescales. In this study, we collate published records of Antarctic sea ice over the past 2000 years (2 ka). We evaluate the current proxies and explore the potential of combining marine and ice core records to produce multi-archive reconstructions. Despite identifying 92 sea ice reconstructions, the spatial and temporal resolution is only sufficient to reconstruct circum-Antarctic sea ice during the 20th century, not the full 2 ka. Our synthesis reveals a 90 year trend of increasing sea ice in the Ross Sea and declining sea ice in the Bellingshausen, comparable with observed trends since 1979. Reconstructions in the Weddell Sea, the Western Pacific and the Indian Ocean reveal small negative trends in sea ice during the 20th century (1900–1990), in contrast to the observed sea ice expansion in these regions since 1979. 
PY 2019
PD DEC
SO Geosciences
SN 2076-3263
PU MDPI AG
VL 9
IS 12
UT 000506643300001
DI 10.3390/geosciences9120506
ID 70709
ER

EF