2026-10-15T11:09:14Z https://oai.datacite.org/oai

doi:10.1594/pangaea.767356 2025-02-09T03:55:08Z PANGAEA PANGAEA.REPOSITORY

Age model and palaeoclimate records over the past 22,000 years of sediment core GeoB10053-7 Mohtadi, Mahyar Oppo, Delia W Steinke, Stephan Stuut, Jan-Berend W De Pol-Holz, Ricardo Hebbeln, Dierk Lückge, Andreas PANGAEA 2011 Collected: 2005-08-29T12:03:00 Issued: 2011 doi:10.1038/ngeo1209 Gravity corer (Kiel type) SO184/2 Sonne Center for Marine Environmental Sciences (MARUM) The Australian-Indonesian monsoon is an important component of the climate system in the tropical Indo-Pacific region. However, its past variability, relation with northern and southern high-latitude climate and connection to the other Asian monsoon systems are poorly understood. Here we present high-resolution records of monsoon-controlled austral winter upwelling during the past 22,000 years, based on planktic foraminiferal oxygen isotopes and faunal composition in a sedimentary archive collected offshore southern Java. We show that glacial-interglacial variations in the Australian-Indonesian winter monsoon were in phase with the Indian summer monsoon system, consistent with their modern linkage through cross-equatorial surface winds. Likewise, millennial-scale variability of upwelling shares similar sign and timing with upwelling variability in the Arabian Sea. On the basis of element composition and grain-size distribution as precipitation-sensitive proxies in the same archive, we infer that (austral) summer monsoon rainfall was highest during the Bølling-Allerød period and the past 2,500 years. Our results indicate drier conditions during Heinrich Stadial 1 due to a southward shift of summer rainfall and a relatively weak Hadley cell south of the Equator. We suggest that the Australian-Indonesian summer and winter monsoon variability were closely linked to summer insolation and abrupt climate changes in the northern hemisphere. Supplement to: Mohtadi, Mahyar; Oppo, Delia W; Steinke, Stephan; Stuut, Jan-Berend W; De Pol-Holz, Ricardo; Hebbeln, Dierk; Lückge, Andreas (2011): Glacial to Holocene swings of the Australian–Indonesian monsoon. Nature Geoscience, 4(8), 540-544 en Collection Supplementary Publication Series of Datasets application/zip Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode