FN Archimer Export Format
PT J
TI Sedimentary response to sea ice and atmospheric variability over the instrumental period off Adelie Land, East Antarctica
BT 
AF CAMPAGNE, Philippine
   CROSTA, Xavier
   SCHMIDT, Sabine
   HOUSSAIS, Marie Noelle
   THER, Olivier
   MASSE, Guillaume
AS 1:1,2,3,4;2:1;3:1;4:2;5:1;6:2,3;
FF 1:;2:;3:;4:;5:;6:;
C1 Univ Bordeaux, EPOC, UMR CNRS 5805, Allee Geoffroy St Hilaire, F-33615 Pessac, France.
   Univ Paris 06, LOCEAN, UMR CNRS UPCM IRD MNHN 7159, 4 Pl Jussieu, F-75252 Paris, France.
   Univ Laval, Dept Biol, TAKUVIK, UMI UL CNRS 3376, Quebec City, PQ G1V 0A6, Canada.
   Univ Laval, Quebec Ocean, 1045 Ave Med, Quebec City, PQ G1V 0A6, Canada.
C2 UNIV BORDEAUX, FRANCE
   UNIV PARIS 06, FRANCE
   UNIV LAVAL, CANADA
   UNIV LAVAL, CANADA
IN DOAJ
IF 3.851
TC 19
UR https://archimer.ifremer.fr/doc/00421/53279/54324.pdf
   https://archimer.ifremer.fr/doc/00421/53279/54325.pdf
LA English
DT Article
CR ALBION 2010
   HOLOCLIP 2011
BO L'Astrolabe
AB Diatoms account for a large proportion of primary productivity in Antarctic coastal and continental shelf zones. Diatoms, which have been used for a long time to infer past sea surface conditions in the Southern Ocean, have recently been associated with diatom-specific biomarkers (highly branched isoprenoids, HBI). Our study is one of the few sedimentary research projects on diatom ecology and associated biomarkers in the Antarctic seasonal sea ice zone. To date, the Adelie Land region has received little attention, despite evidence for the presence of high accumulation of laminated sediment, allowing for finer climate reconstructions and sedimentary process studies. Here we provide a sequence of seasonally to annually laminated diatomaceous sediment from a 72.5 cm interface core retrieved on the continental shelf off Adelie Land, covering the 1970-2010 CE period. Investigations through statistical analyses of diatom communities, diatom-specific biomarkers and major element abundances document the relationships between these proxies at an unprecedented resolution. Additionally, comparison of sedimentary records to meteorological data monitored by automatic weather station and satellite derived sea ice concentrations help to refine the relationships between our proxies and environmental conditions over the last decades. Our results suggest a coupled interaction of the atmospheric and sea surface variability on sea ice seasonality, which acts as the proximal forcing of siliceous productivity at that scale. 
PY 2016
SO Biogeosciences
SN 1726-4170
PU Copernicus Gesellschaft Mbh
VL 13
IS 14
UT 000381212300009
BP 4205
EP 4218
DI 10.5194/bg-13-4205-2016
ID 53279
ER

EF