noaa-coral-1919 Flinders Reef - Coral Boron Isotope Data and pH Reconstruction Pelejero, C.; Calvo, E.; McCulloch, M.T.; Marshall, J.F.; Gagan, M.K.; Lough, J.M.; Opdyke, B.N. Flinders Reef - Coral Boron Isotope Data and pH Reconstruction 2005-07-01 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/1919 Investigator C. Pelejero Investigator E. Calvo Investigator M.T. McCulloch Investigator J.F. Marshall Investigator M.K. Gagan Investigator J.M. Lough Investigator B.N. Opdyke earth science paleoclimate climate reconstructions|corals and sclerosponges aragonite saturation state,delta 11B,null,dimensionless,null,climate reconstructions|corals and sclerosponges,null,null,N,sea surface earth science paleoclimate corals and sclerosponges delta 11B,Porites sp.,null,per mil SRM 951,null,corals and sclerosponges,averaged,thermal ionization mass spectrometry,N,null earth science paleoclimate corals and sclerosponges delta 11B,Porites sp.,null,per mil SRM 951,null,corals and sclerosponges,raw,thermal ionization mass spectrometry,N,null earth science paleoclimate climate reconstructions|corals and sclerosponges pH,delta 11B|sea water,null,dimensionless,null,climate reconstructions|corals and sclerosponges,null,null,N,sea surface 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 delta 13C,Porites sp.,null,per mil VPDB,null,corals and sclerosponges,raw,isotope ratio mass spectrometry,N,null earth science paleoclimate corals and sclerosponges extension rate,Porites sp.,null,centimeter per year,null,corals and sclerosponges,raw,x-radiography,N,null earth science paleoclimate corals and sclerosponges calcification rate,Porites sp.,null,gram per square centimeter per year,null,corals and sclerosponges,raw,gamma ray densitometry,N,null earth science paleoclimate corals and sclerosponges physical properties earth science paleoclimate corals and sclerosponges chemistry earth science paleoclimate corals and sclerosponges carbon isotopes geoscientificInformation Other Reconstruction 1708 AD 1988 AD 242 cal yr BP -38 cal yr BP Complete -17.73 -17.73 148.43 148.43 Continent Australia/New Zealand Australia Flinders Reef>LATITUDE -17.73>LONGITUDE 148.43 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 Pelejero, C., E. Calvo, M.T. McCulloch, J.F. Marshall, M.K. Gagan, J.M. Lough, and B.N. Opdyke. 2005. Preindustrial to modern interdecadal variability in coral reef pH. Science v. 309, pp. 2204-2207, 30 September 2005.

The oceans are becoming more acidic due to absorption of anthropogenic carbon dioxide from the atmosphere. The impact of ocean acidification on marine ecosystems is unclear, but it will likely depend on species adaptability and the rate of change of seawater pH relative to its natural variability. To constrain the natural variability in reef-water pH, we measured boron isotopic compositions in a ~300-year-old massive Porites coral from the southwestern Pacific. Large variations in pH are found over ~50-year cycles that covary with the Interdecadal Pacific Oscillation of ocean-atmosphere anomalies, suggesting that natural pH cycles can modulate the impact of ocean acidification on coral reef ecosystems.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/great_barrier/pelejero2005-mon_noaa.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/great_barrier/pelejero2005-5yr_noaa.txt USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11