noaa-coral-18917 Burdekin River, NE Queensland October-September river flow reconstructed from luminescence range: 1648-2011 Lough, J.M.; Lewis, S.E.; Cantin, N.E. Burdekin River, NE Queensland October-September river flow reconstructed from luminescence range: 1648-2011 2015-06-24 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/18917 Investigator J.M. Lough Investigator S.E. Lewis Investigator N.E. Cantin earth science paleoclimate climate reconstructions|corals and sclerosponges streamflow,luminescence,null,cubic kilometer,Oct-Sep,climate reconstructions|corals and sclerosponges,null,regression analysis,N,exponential regression earth science paleoclimate corals and sclerosponges luminescence,Porites sp.,null,dimensionless,null,corals and sclerosponges,raw,luminescence spectroscopy,N,null earth science paleoclimate corals and sclerosponges age,null,null,year Common Era,null,corals and sclerosponges,null,null,N,null earth science paleoclimate climate reconstructions|corals and sclerosponges age,null,null,year Common Era,null,climate reconstructions|corals and sclerosponges,null,null,N,null earth science paleoclimate corals and sclerosponges physical properties geoscientificInformation Monsoon Streamflow Reconstruction 1648 AD 2011 AD 302 cal yr BP -61 cal yr BP Complete -18.85 -18.85 146.55 146.55 Continent Australia/New Zealand Australia Havannah Island>LATITUDE -18.85>LONGITUDE 146.55 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 Lough, J.M., S.E. Lewis, and N.E. Cantin 2015 Coral Reefs 34 3 739-751 10.1007/s00338-015-1297-8

The Australian summer monsoon is highly variable from year to year resulting in high variability in the magnitude and extent of freshwater river flood plumes affecting the Great Barrier Reef (GBR). These flood plumes transport terrestrial materials and contaminants to the reef and can have significant impacts on both water quality and ecosystem health. The occurrence and intensity of these freshwater flood plumes are reliably recorded as annual luminescent lines in inshore massive corals and occasional luminescent lines in mid-shelf corals. We use measured luminescence in a long Porites core and four recently collected short cores from Havannah Island (a nearshore reef in the central GBR) to reconstruct Burdekin River flow, 1648–2011, and five recent short cores from Britomart Reef (a mid-shelf reef, 65 km northeast of Havannah Island) to assess the frequency of flood plume events extending beyond the inshore to mid-shelf reefs. The reconstruction highlights that the frequency of high flow events has increased in the GBR from 1 in every 20 yr prior to European settlement (1748–1847) to 1 in every 6 yr reoccurrence (1948–2011). Three of the most extreme events in the past 364 yr have occurred since 1974, including 2011. The reconstruction also shows a shift to higher flows, increased variability from the latter half of the nineteenth century, and likely more frequent freshwater impacts on mid-shelf reefs. This change coincided with European settlement of northern Queensland and substantial changes in land use, which resulted in increased sediment loads exported to the GBR. The consequences of increased sediment loads to the GBR were, therefore, likely exacerbated by this climate shift. This change in Burdekin River flow characteristics appears to be associated with a shift towards greater El Niño–Southern Oscillation variability and rapid warming in the southwest Pacific, evident in independent palaeoclimatic records. STUDY NOTES: Reconstructed October-September Burdekin River flow (km3). Annual luminescence range data for 1 long core and 4 modern short cores are also provided.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/lough2015/lough2015-hav01a.txt Formatted Text File; HAV01A Luminescence Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/lough2015/lough2015-hav31b.txt Formatted Text File; HAV31B Luminescence Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/lough2015/lough2015-hav32a.txt Formatted Text File; HAV32A Luminescence Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/lough2015/lough2015-hav34a.txt Formatted Text File; HAV34A Luminescence Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/lough2015/lough2015-flow.txt Formatted Text File; Burdekin River Streamflow Reconstruction GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/lough2015/lough2015-hav33a.txt Formatted Text File; HAV33A Luminescence Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11