The abrupt onset of the modern South Asian monsoon winds

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dc.contributor.author Betzler, C.
dc.contributor.author Eberli, G.P.
dc.contributor.author Kroon, D.
dc.contributor.author Wright, J.D.
dc.contributor.author Swart, P.K.
dc.contributor.author Nath, B.N.
dc.contributor.author Alvarez-Zarikian, C.A.
dc.contributor.author Alonso-Garcia, M.
dc.contributor.author Bialik, O.M.
dc.contributor.author Blattler, C.L.
dc.contributor.author Guo, J.
dc.contributor.author Haffen, S.
dc.contributor.author Horozal, S.
dc.contributor.author Inoue, M.
dc.contributor.author Jovane, L.
dc.contributor.author Lanci, L.
dc.contributor.author Laya, J.C.
dc.contributor.author Mee, A.L.H.
dc.contributor.author Ludmann, T.
dc.contributor.author Nakakuni, M.
dc.contributor.author Niino, K.
dc.contributor.author Petruny, L.M.
dc.contributor.author Pratiwi, S.D.
dc.contributor.author Reijmer, J.J.G.
dc.contributor.author Reolid, J.
dc.contributor.author Slagle, A.L.
dc.contributor.author Sloss, C.R.
dc.contributor.author Su, X.
dc.contributor.author Yao, Z.
dc.contributor.author Young, J.R.
dc.date.accessioned 2016-08-19T12:16:37Z
dc.date.available 2016-08-19T12:16:37Z
dc.date.issued 2016
dc.identifier.citation Scientific Reports, vol.6; 2016; no. 29838 doi: 10.1038/srep29838
dc.identifier.uri http://drs.nio.org/drs/handle/2264/5004
dc.description.abstract The South Asian Monson (SAM) is one of the most intense climatic elements yet its initiation and variations are not well established. Dating the deposits of SAM wind-driven currents in IODP cores from the Maldives yields an age of 12.9 Ma indicating an abrupt SAM onset, over a short period of 300 kyrs. This coincided with the Indian Ocean Oxygen Minimum Zone expansion as revealed by geochemical tracers and the onset of upwelling reflected by the sediment’s content of particulate organic matter. A weaker ‘proto-monsoon’ existed between 12.9 and 25 Ma, as mirrored by the sedimentary signature of dust influx. Abrupt SAM initiation favors a strong influence of climate in addition to the tectonic control, and we propose that the post Miocene Climate Optimum cooling, together with increased continentalization and establishment of the bipolar ocean circulation, i.e. the beginning of the modern world, shifted the monsoon over a threshold towards the modern system
dc.language.iso en
dc.publisher Macmillan Publishers Limited
dc.rights This is an open access article licensed under a Creative Commons Attribution 4.0 International License © Author(s) 2016.
dc.subject METEOROLOGY AND CLIMATOLOGY
dc.subject CHEMISTRY AND BIOGEOCHEMISTRY
dc.subject METEOROLOGY AND CLIMATOLOGY
dc.subject GEOLOGY AND GEOPHYSICS
dc.title The abrupt onset of the modern South Asian monsoon winds
dc.type Journal Article


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