noaa-lake-22432 Southeast Australia 1,500 Year Crater Lake Salinity Reconstructions Barr, C.; Tibby, J.; Gell, P.; Tyler, J.J.; Zawadzki, A.; Jacobson, G.E. Southeast Australia 1,500 Year Crater Lake Salinity Reconstructions 2017-07-10 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/22432 Investigator C. Barr Investigator J. Tibby Investigator P. Gell Investigator J.J. Tyler Investigator A. Zawadzki Investigator G.E. Jacobson earth science paleoclimate climate reconstructions|paleolimnology electrical conductivity,diatom assemblage|lake water,dissimilarity measure,dimensionless,null,climate reconstructions|paleolimnology,null,modern analogue technique,N,Minimum Dissimilarity from closest modern analogue; Samples with minimum dissimilarity coefficient greater/equal to highest 10th percentile (131.493) are considered to have good modern analogues earth science paleoclimate climate reconstructions|paleolimnology age,null,null,year Common Era,null,climate reconstructions|paleolimnology,null,null,N,null earth science paleoclimate climate reconstructions|paleolimnology age,null,null,calendar year before present,null,climate reconstructions|paleolimnology,null,null,N,null earth science paleoclimate climate reconstructions|paleolimnology electrical conductivity,diatom assemblage|lake water,null,microsiemens per centimeter,null,climate reconstructions|paleolimnology,null,modern analogue technique,N,null earth science paleoclimate climate reconstructions|paleolimnology depth,null,null,centimeter,null,climate reconstructions|paleolimnology,null,null,N,null earth science paleoclimate paleolimnology reconstruction geoscientificInformation 1472 cal yr BP -54 cal yr BP Complete -38.35 -38.06 141.92 143 98 121 Continent Australia/New Zealand Australia Victoria Lake Elingamite>LATITUDE -38.35>LONGITUDE 143 Continent Australia/New Zealand Australia Victoria Lake Surprise>LATITUDE -38.06>LONGITUDE 141.92 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 Cameron Barr, John Tibby, Peter Gell, Jonathan Tyler, Atun Zawadzki, Geraldine E. Jacobson 2014 Quaternary Science Reviews 95 115-131 10.1016/j.quascirev.2014.05.001 http://www.sciencedirect.com/science/article/pii/S0277379114001644 Jonathan J. Tyler, Keely Mills, Cameron Barr, J.M. Kale Sniderman, Peter A. Gell, David J. Karoly 2015 Quaternary Science Reviews 119 94-105 10.1016/j.quascirev.2015.04.010 http://www.sciencedirect.com/science/article/pii/S0277379115001523

Climates of the last two millennia have been the focus of numerous studies due to the availability of high-resolution palaeoclimate records and the occurrence of divergent periods of climate, commonly referred to as the 'Medieval Climatic Anomaly' and 'The Little Ice Age'. The majority of these studies are centred in the Northern Hemisphere and, in comparison, the Southern Hemisphere is relatively under-studied. In Australia, there are few high-resolution, palaeoclimate studies spanning a millennium or more and, consequently, knowledge of long-term natural climate variability is limited for much of the continent. South-eastern Australia, which recently experienced a severe, decade-long drought, is one such region. Results are presented of investigations from two crater lakes in the south-east of mainland Australia. Fluctuations in lake-water conductivity, a proxy for effective moisture, are reconstructed at sub-decadal resolution over the past 1500 years using a statistically robust, diatom-conductivity transfer function. These data are interpreted in conjunction with diatom autecology. The records display coherent patterns of change at centennial scale, signifying that both lakes responded to regional-scale climate forcing, though the nature of that response varied between sites due to differing lake morphometry. Both sites provide evidence for a multi-decadal drought, commencing ca 650 AD, and a period of variable climate between ca 850 and 1400 AD. From ca 1400-1880 AD, coincident with the timing of the 'Little Ice Age', climates of the region are characterised by high effective moisture and a marked reduction in inter-decadal variability. The records provide context for climates of the historical period and reveal the potential for more extreme droughts and more variable climate than that experienced since European settlement of the region ca 170 years ago. STUDY NOTES: Diatom modern-analougue technique salinity reconstruction for 2 lakes in Victoria, southeast Australia, for the past 1,500 years.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/australia/surprise2014.txt Formatted Text Data File; Lake Surprise Salinity Reconstruction GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/australia/elingamite2014.txt Formatted Text Data File; Lake Elingamite Salinity Reconstruction USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11