High-resolution stalagmite reconstructions for Australian-Indonesian monsson rainfall variability during Heinrich stadial 3 and Greenland interstadial 4

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dc.contributor.authorLewis, Sen_AU
dc.contributor.authorGagan, MKen_AU
dc.contributor.authorAyliffe, LKen_AU
dc.contributor.authorZhao, JXen_AU
dc.contributor.authorHantoro, WSen_AU
dc.contributor.authorTreble, PCen_AU
dc.contributor.authorHellstrom, JCen_AU
dc.contributor.authorLeGrande, ANen_AU
dc.contributor.authorKelley, Men_AU
dc.contributor.authorSchmidt, GAen_AU
dc.contributor.authorSuwargadi, BWen_AU
dc.date.accessioned2011-10-12T00:07:08Zen_AU
dc.date.available2011-10-12T00:07:08Zen_AU
dc.date.issued2011-02-15en_AU
dc.date.statistics2011-10-12en_AU
dc.description.abstractLittle is known about the possible teleconnections between abrupt climatic changes originating in the North Atlantic and precipitation dynamics in the Australian-Indonesian summer monsoon (AISM) domain. We examine the climatic impacts of Heinrich stadial 3 (HS3) and Greenland interstadials 4 and 3 (GIS4/3) on AISM-associated precipitation through a high-resolution analysis of stable isotope (delta(18)O, delta(13)C) and trace element (Mg/Ca, P/Ca) ratios in a stalagmite from Liang Luar cave, Flores, Indonesia. Sixteen high precision (230)Th dates indicate that stalagmite LR07-E1 grew rapidly (similar to 0.3-1.0 mm/yr) in two phases between similar to 31.5-30.1 ka and similar to 27.8-25.6 ka, separated by a similar to 2.3 kyr unconformity. Temporally consistent abrupt responses occur in the Flores record during HS3 and GIS4, which are coherent with changes in stalagmite delta(18)O records from China and Brazil. The response of low-latitude precipitation to HS3 cooling and GIS4 warming, as demonstrated by the widely separated sites, comprises three distinct simplified phases: (1) a strong southward migration of the ITCZ during HS3 is associated with a decrease in rainfall at Liang Luar cave and in China, while wetter conditions are reconstructed from Brazil, (2) represents the peak of HS3 impacts and an extended hiatus begins in the Flores record and (3) where suggested dry conditions at Liang Luar throughout GIS4 form part of a coherent north-south anti-phasing in precipitation changes. The reconstructed changes are also broadly consistent with NASA GISS ModelE-R simulations of a Heinrich-like freshwater perturbation in the North Atlantic basin, which produces a southward shift in the ITCZ. The relationship between the palaeoclimate records indicates that atmospheric teleconnections rapidly propagate and synchronise climate change across the hemispheres during periods of abrupt climate change. Our findings augment recent proposals that large-scale atmospheric re-organisations during stadials and interstadials play a key role in driving changes in atmospheric CO(2) concentration, air temperature and global climate change. (C) 2011 Elsevier B.V.en_AU
dc.identifier.citationGriffiths, M.L., Drysdale, R.N., Vonhof, H.B., Gagan, M.K., Zhao, J.X., Ayliffe, L.K., Hantoro, W.S., Hellstrom, J.C., Cartwright, I., Frisia, S., Suwargadi, B.W. (2011). High-resolution stalagmite reconstructions for Australian-Indonesian monsson rainfall variability during Heinrich stadial 3 and Greenland interstadial 4, Earth and Planetary Science Letters, 303(1-2); 133-142. doi:10.1016/j.epsl.2010.12.048en_AU
dc.identifier.govdoc3662en_AU
dc.identifier.issn0012-821Xen_AU
dc.identifier.issue1-2en_AU
dc.identifier.journaltitleEarth and Planetary Science Lettersen_AU
dc.identifier.pagination133-142en_AU
dc.identifier.urihttp://dx.doi.org/ 10.1016/j.epsl.2010.12.048en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3818en_AU
dc.identifier.volume303en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectIsotopesen_AU
dc.subjectAtlantic Oceanen_AU
dc.subjectGreenlanden_AU
dc.subjectMonsoonsen_AU
dc.subjectClimatic changeen_AU
dc.subjectRainen_AU
dc.titleHigh-resolution stalagmite reconstructions for Australian-Indonesian monsson rainfall variability during Heinrich stadial 3 and Greenland interstadial 4en_AU
dc.typeJournal Articleen_AU
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