noaa-coral-22252 Great Keppel Island, Great Barrier Reef Trace Metal Data from 1958-2010 CE Saha, N.; Rodriguez-Ramirez, A.; Nguyen, A.D.; Clark, T.R.; Zhao, J.-x.; Webb, G.E. Great Keppel Island, Great Barrier Reef Trace Metal Data from 1958-2010 CE 2017-06-20 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/22252 Investigator N. Saha Investigator A. Rodriguez-Ramirez Investigator A.D. Nguyen Investigator T.R. Clark Investigator J.-x. Zhao Investigator G.E. Webb earth science paleoclimate instrumental sea surface temperature,null,null,degree Celsius,null,instrumental,null,null,N,HadI Sea Surface Temperature earth science paleoclimate instrumental streamflow,null,null,megaliter,null,instrumental,null,null,N,null earth science paleoclimate instrumental precipitation,null,null,millimeter,null,instrumental,null,null,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 corals and sclerosponges magnesium/calcium,Porites sp.,null,millimole per mole,null,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,Monthly Interpolated earth science paleoclimate corals and sclerosponges yttrium/calcium,Porites sp.,null,nanomole per mole,null,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,Monthly Interpolated earth science paleoclimate corals and sclerosponges barium/calcium,Porites sp.,null,micromole per mole,null,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,Monthly Interpolated earth science paleoclimate corals and sclerosponges age,null,null,year Common Era,null,corals and sclerosponges,null,null,N,in text format earth science paleoclimate corals and sclerosponges uranium/calcium,Porites sp.,null,micromole per mole,null,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,Monthly Interpolated earth science paleoclimate corals and sclerosponges strontium/calcium,Porites sp.,null,millimole per mole,null,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,Monthly Interpolated earth science paleoclimate corals and sclerosponges trace metals geoscientificInformation 1958 AD 2010 AD -8 cal yr BP -60 cal yr BP Complete -23.15045 -23.15045 150.973933 150.973933 Continent Australia/New Zealand Australia Great Keppel Island>LATITUDE -23.15045>LONGITUDE 150.973933 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 Saha, N., A. Rodriguez-Ramirez, A.D. Nguyen, T.R. Clark, j.X. Zhao, and G.E. Webb 2017 Paleoceanography submitted

Extensive catchment modification since European settlement in the eastern coast of Australia results in poor coastal water quality, which poses a major threat for near shore coral communities in the iconic Great Barrier Reef (GBR). This study investigated coastal water quality over the period of 1958 to 2010 using monthly resolution Ba/Ca and Y/Ca signatures obtained from Porites sp. coral from Great Keppel Island, southern GBR, Australia. Geochemical proxy records were influenced by environmental change on a seasonal to decadal scale. Although seasonal oscillations of Ba/Ca and Y/Ca were related to rainfall and discharge from the Fitzroy River catchment, some uncorrelated anomalous peaks were evident throughout the time series. Regardless, the behaviour of these proxies was significantly consistent over the longer time scale. A long term drought-breaking flood resulted in significant increase in the targeted elemental ratios owing to higher terrigenous sediment influx to the near shore marine environment from a catchment with reduced groundcover. Following this intense flashing event, elemental ratios were reduced in subsequent wet periods as a result of less sediment being available for transport. Our geochemical proxy record highlights the impact of terrestrial runoff on inshore water quality and the coral community of the southern GBR. STUDY NOTES: Provided Keywords: Ba/Ca, Y/Ca, Water Quality, Great Barrier Reef, Coral Geochemistry

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/great_barrier/saha2017/saha2017.txt NOAA Template File; Trace Metal Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11