noaa-lake-22413 Upper Snowy Mountains, Australia 6,500 Year Dust Deposition Data Marx, S.K.; Kamber, B.A.; McGowan, H.A.; Denholm, J. Upper Snowy Mountains, Australia 6,500 Year Dust Deposition Data 2017-07-10 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/22413 Investigator S.K. Marx Investigator B.A. Kamber Investigator H.A. McGowan Investigator J. Denholm earth science paleoclimate paleolimnology sample identification,null,null,null,null,paleolimnology,null,null,C,null earth science paleoclimate paleolimnology depth,null,null,millimeter,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology dust,null,null,gram per square meter per year,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology age,null,null,calendar year before present,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology physical properties geoscientificInformation 6493 cal yr BP 3 cal yr BP Complete -36.463 -36.463 148.299 148.299 1940 1940 Continent Australia/New Zealand Australia New South Wales Upper Snowy Mountains>LATITUDE -36.463>LONGITUDE 148.299 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Samuel K. Marx, Balz S. Kamber, Hamish A. McGowan, John Denholm 2011 Quaternary Science Reviews 30 23-24 3290-3305 10.1016/j.quascirev.2011.07.015 http://www.sciencedirect.com/science/article/pii/S0277379111002198 Samuel K. Marx, Balz S. Kamber, Hamish A. McGowan, Atun Zawadzki 2010 Environmental Pollution 158 5 1615-1628 10.1016/j.envpol.2009.12.009 http://www.sciencedirect.com/science/article/pii/S0269749109006034

Millennial scale variability in the strength/position of the mid-latitude westerlies, as interpreted from rates of dust deposition in an alpine mire south-eastern Australia, is demonstrated to be a major driver of climate variability during the mid to late Holocene. Dust deposition rates were calculated with a trace element provenance model. This approach is capable of distinguishing between sedimentation of local alluvium and genuine deposition of aeolian dust into the studied mire. Low dust deposition from 6500 to 5500 cal. BP occurred during a period of enhanced south-westerly winds which advected moisture into south-eastern Australia resulting in wet conditions. A subsequent dust pulse at 5500-4000 cal. BP is interpreted as a relaxation in south-westerlies resulting in a more arid phase and possibly enhanced climate variability. Reduced dust deposition between 4000 and 2000 cal. BP indicates a return to increased precipitation/moisture in the lower MDB associated with increased south-westerly geostrophic flow. The onset of more arid conditions after 2000 cal. BP implies a reduction in the frequency of precipitation bearing south-westerly winds. A final further significant finding from this study is the identification of a major dust deposition/wind erosion episode coinciding with the onset of European land clearing and agriculture in Australia. STUDY NOTES: Dust deposition rate from mire sediments collected in the Upper Snowy Range, New South Wales.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/australia/snowy2011dust.txt Formatted Text Data File; Upper Snowy Mountains Dust Deposition Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11