Persistent monsoonal forcing of Mediterranean Outflow dynamics during the late Pleistocene ...

The mode and vigor of the global oceanic circulation critically depend on the salinity of (sub)surface water masses advected to the loci of deep-water formation. Within the Atlantic meridional overturning circulation (AMOC), an important supplier of high-salinity waters is the Mediterranean Outflow...

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Bibliographic Details
Main Authors: Bahr, André, Kaboth, Stefanie, Jiménez-Espejo, Francisco Jose, Sierro, Francisco Javier, Voelker, Antje H L, Lourens, Lucas Joost, Röhl, Ursula, Reichart, Gert-Jan, Escutia, Carlota, Hernandéz-Molina, Francisco Javier, Pross, Jörg, Friedrich, Oliver
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 2015
Subjects:
Composite Core
Calypso Corer
Exp339
MD101
Joides Resolution
Marion Dufresne 1995
Integrated Ocean Drilling Program / International Ocean Discovery Program IODP
Carlota
Jiménez
Molina
North Atlantic
Online Access:https://dx.doi.org/10.1594/pangaea.849504
https://doi.pangaea.de/10.1594/PANGAEA.849504
Description
Summary:The mode and vigor of the global oceanic circulation critically depend on the salinity of (sub)surface water masses advected to the loci of deep-water formation. Within the Atlantic meridional overturning circulation (AMOC), an important supplier of high-salinity waters is the Mediterranean Outflow Water (MOW), discharging into the North Atlantic via the Strait of Gibraltar. Despite its importance for the North Atlantic salinity budget, the long-term dynamics of MOW production have remained poorly understood. Here we present high-resolution records of bottom-current velocity from three drill sites within the Gulf of Cádiz that document a persistent low-latitude forcing of MOW flow speed over the past ~150 k.y. We demonstrate that the African monsoon is the predominant driver of orbital-scale MOW variability via its influence on the freshwater budget of the eastern Mediterranean Sea. Consequently, MOW formation fluctuates in concert with orbital precession overprinted by centennial-scale oscillations of ... : Supplement to: Bahr, André; Kaboth, Stefanie; Jiménez-Espejo, Francisco Jose; Sierro, Francisco Javier; Voelker, Antje H L; Lourens, Lucas Joost; Röhl, Ursula; Reichart, Gert-Jan; Escutia, Carlota; Hernandéz-Molina, Francisco Javier; Pross, Jörg; Friedrich, Oliver (2015): Persistent monsoonal forcing of Mediterranean Outflow Water dynamics during the late Pleistocene. Geology, 43(11), 951-954 ...

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