@Article{VenâncioSSLPCCMKTVBSAVNN:2020:ChSuHy,
author = "Ven{\^a}ncio, Igor Martins and Shimizu, Mar{\'{\i}}lia Harumi
and Santos, T. P. and Lessa, D. O. and Portilho-Ramos, R. C. and
Chiessid, C. M. and Crivellarie, S. and Mulitzac, S. and Kuhnertc,
H. and Tiedemann, R. and Vahlenkampc, M. and Bickertc, T. and
Sampaio, Gilvan and Albuquerque, A. L. S. and Veiga, Sandro Miguel
Ferreira and Nobre, Paulo and Nobre, Carlos Afonso",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Universidade Federal
Fluminense (UFF)} and {Universidade Federal Fluminense (UFF)} and
{University of Bremen} and {Universidade de S{\~a}o Paulo (USP)}
and {Universidade de S{\~a}o Paulo (USP)} and {University of
Bremen} and {University of Bremen} and {Alfred Wegener Institute
for Polar and Marine Research} and {University of Bremen} and
{University of Bremen} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Universidade Federal Fluminense (UFF)} and
{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Universidade de
S{\~a}o Paulo (USP)}",
title = "Changes in surface hydrography at the western tropical Atlantic
during the Younger Dryas",
journal = "Global and Planetary Change",
year = "2020",
volume = "184",
pages = "e103047",
month = "Jan.",
abstract = "During the Younger Dryas (YD), paleoceanographic proxies indicate
a weakening of the Atlantic Meridional Overturning Circulation
(AMOC) resulting in a widespread surface cooling of the North
Atlantic and a southward displacement of the Intertropical
Convergence Zone (ITCZ). In the western tropical Atlantic,
competing ocean and atmospheric processes may result in
contrasting surface hydrography scenarios north and south of the
equator during the YD. Based on new and compiled data, we provide
an up-to-date model-data comparison of changes in western tropical
Atlantic surface hydrography during the YD. We show that both
transient model simulations and proxy results indicate warming of
sea surface temperatures (SST) in the western tropical South
Atlantic, but disagree for the SST in the western tropical North
Atlantic. Proxies also reveal a complex spatial pattern in surface
salinity in the western tropical Atlantic, while a broad negative
anomaly is observed in the model output. By comparing planktonic
foraminiferal Ba/Ca records from different records in the western
tropical Atlantic we constrain ITCZ shifts from the YD to the
early Holocene. Based on the Ba/Ca records, the ITCZ reached its
southernmost position between 13 and 11.8 ka and started to move
northward reaching its northernmost position between 10.8 and 9.7
ka.",
doi = "10.1016/j.gloplacha.2019.103047",
url = "http://dx.doi.org/10.1016/j.gloplacha.2019.103047",
issn = "0921-8181",
language = "en",
targetfile = "venancio_changes.pdf",
urlaccessdate = "01 maio 2024"
}