eprintid: 10194015
rev_number: 7
eprint_status: archive
userid: 699
dir: disk0/10/19/40/15
datestamp: 2024-07-02 09:42:45
lastmod: 2024-07-02 09:42:45
status_changed: 2024-07-02 09:42:45
type: article
metadata_visibility: show
sword_depositor: 699
creators_name: Kang, Xiaoying
creators_name: Yu, Zhaojie
creators_name: Song, Lina
creators_name: Colin, Christophe
creators_name: Wilson, David
creators_name: Song, Zehua
creators_name: Su, Bai
creators_name: Tang, Xiaojie
creators_name: Chang, Fengming
creators_name: Bassinot, Franck
creators_name: Wan, Shiming
title: Wind-driven sediment exchange between the Indian marginal seas over the last 18,000 years
ispublished: inpress
divisions: UCL
divisions: B04
divisions: C06
divisions: F57
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: The Indian Coastal Current is the only channel for material exchange between the two largest marginal seas in the northern Indian Ocean: the Bay of Bengal and the Arabian Sea. However, its past history is poorly known, limiting accurate predictions of its future changes. Here, we present a new clay mineral record from south of India supported by interpretations of model simulations to trace its variability over the last 18,000 years. Decreased smectite/(illite+chlorite) ratios during the cold intervals suggest that a stronger northeasterly wind led to a mean southward flow of the Indian Coastal Current in the Bay of Bengal. In contrast, increased smectite/(illite+chlorite) ratios during the warm intervals suggest the opposite scenario. Combining the proxy record with model simulations, we infer that atmospheric circulation changes were the main driver of the changes. Moreover, a possible link is observed between a positive Indian Ocean Dipole (IOD) and weakened southward flow of the Indian Coastal Current in the Bay of Bengal during the Holocene. These findings imply that future warming scenarios, if associated with more intense positive IOD events as proposed, may lead to a reduction in fresh water transport from the Bay of Bengal to the Arabian Sea.
date: 2024-06-26
date_type: published
publisher: IOP Publishing
official_url: http://dx.doi.org/10.1088/1748-9326/ad5bf4
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 2291052
doi: 10.1088/1748-9326/ad5bf4
lyricists_name: Wilson, David
lyricists_id: DJWIL75
actors_name: Wilson, David
actors_id: DJWIL75
actors_role: owner
full_text_status: public
publication: Environmental Research Letters
issn: 1748-9326
citation:        Kang, Xiaoying;    Yu, Zhaojie;    Song, Lina;    Colin, Christophe;    Wilson, David;    Song, Zehua;    Su, Bai;                 ... Wan, Shiming; + view all <#>        Kang, Xiaoying;  Yu, Zhaojie;  Song, Lina;  Colin, Christophe;  Wilson, David;  Song, Zehua;  Su, Bai;  Tang, Xiaojie;  Chang, Fengming;  Bassinot, Franck;  Wan, Shiming;   - view fewer <#>    (2024)    Wind-driven sediment exchange between the Indian marginal seas over the last 18,000 years.                   Environmental Research Letters        10.1088/1748-9326/ad5bf4 <https://doi.org/10.1088/1748-9326%2Fad5bf4>.    (In press).    Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10194015/1/Kang%20et%20al%202024%20ERL%20accepted%20ms%20%2B%20supp.pdf