FN Archimer Export Format
PT J
TI Southern Hemisphere imprint for Indo-Asian summer monsoons during the last glacial period as revealed by Arabian Sea productivity records
BT 
AF CALEY, Thibaut
   ZARAGOSI, S.
   BOURGET, Julien
   MARTINEZ, P.
   MALAIZE, B.
   EYNAUD, F.
   ROSSIGNOL, L.
   GARLAN, Thierry
   ELLOUZ-ZIMMERMANN, Nadine
AS 1:1,2;2:1;3:3;4:1;5:1;6:1;7:1;8:4;9:5;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;
C1 Univ Bordeaux, CNRS, EPOC, UMR5805, F-33400 Talence, France.
   Vrije Univ Amsterdam, Dept Earth Sci, Sect Climate Change & Landscape Dynam, Amsterdam, Netherlands.
   Univ Western Australia, Sch Earth & Environm, CPGCO2, Crawley 6009, Australia.
   Serv Hydrog & Oceanog Marine, F-29603 Brest, France.
   IFP Energies Nouvelles, F-92852 Rueil Malmaison, France.
C2 UNIV BORDEAUX, FRANCE
   UNIV VRIJE AMSTERDAM, NETHERLANDS
   UNIV WESTERN AUSTRALIA, AUSTRALIA
   SHOM, FRANCE
   IFP ENERGIES NOUVELLES, FRANCE
IN DOAJ
IF 3.753
TC 19
UR https://archimer.ifremer.fr/doc/00274/38492/36962.pdf
   https://archimer.ifremer.fr/doc/00274/38492/36963.pdf
   https://archimer.ifremer.fr/doc/00274/38492/71285.pdf
   https://archimer.ifremer.fr/doc/00274/38492/71286.pdf
LA English
DT Article
CR FANINDIEN
   FANINDIEN LEG 1
   FANINDIEN LEG 2
   MD 143 / CHAMAK
BO Beautemps-Beaupré
   Marion Dufresne
AB The monsoon is one of the most important climatic phenomena: it promotes inter-hemispheric exchange of energy and affects the economical prosperity of several countries exposed to its seasonal seesaw. Previous studies in both the Indian and Asian monsoon systems have generally suggested a dominant northern hemispheric (NH) control on summer monsoon dynamics at the scale of suborbital-millennial climatic changes, while the forcing/response of Indian and Asian monsoons at the orbital scale remains a matter of debate. Here, six marine sediment cores distributed across the whole Arabian Sea are used to build a regional surface marine productivity signal. The productivity signal is driven by the intensity of Indian summer monsoon winds. Our results demonstrate the existence of an imprint of suborbital southern hemispheric (SH) temperature changes (i.e. Antarctica) on the Indian summer monsoon during the last glacial period that is generally not recognized. During the last deglaciation, the NH played a more significant role. This suggests that fluctuations in the Indian monsoon are better explained in a bipolar context. The delta O-18 signal recorded in the Asian monsoon speleothem records could be exported by winds from the Indian summer monsoon region, as recently proposed in modelling exercise, explaining the SH signature observed in Asian cave speleothems. Contrary to the view of a passive response of Indian and Asian monsoons to NH anomalies, the present results appear to suggest that the Indo-Asian summer monsoon plays an active role in amplifying millennial inter-hemispheric asymmetric patterns. Additionally, this study confirms previously observed differences between Indian and Asian speleothem monsoonal records at the orbital-precession scale.
PY 2013
SO Biogeosciences
SN 1726-4170
PU Copernicus Gesellschaft Mbh
VL 10
IS 11
UT 000327814700039
BP 7347
EP 7359
DI 10.5194/bg-10-7347-2013
ID 38492
ER

EF