# John Smith's Bay Reef, Bermuda, Coral del11B Data #----------------------------------------------------------------------- # World Data Center for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # NOTE: Please cite original publication, online resource and date accessed when using this data. # If there is no publication information, please cite Investigator, title, online resource and date accessed. # # Description/Documentation lines begin with # # Data lines have no # # # Online_Resource: http://www.ncdc.noaa.gov/paleo/study/18975 # Online_Resource: http://www1.ncdc.noaa.gov/pub/data/paleo/coral/atlantic/goodkin2015/goodkin2015.txt # # Archive: Corals and Sclerosponges #--------------------------------------- # Contribution_Date # Date: 2015-07-09 #--------------------------------------- # Title # Study_Name: John Smith's Bay Reef, Bermuda, Coral del11B Data #--------------------------------------- # Investigators # Investigators: Goodkin, N.F.; Wang, B.-S.; You, C.-F.; Hughen, K.A.; Grumet-Prouty, N.; Bates, N.R.; Doney, S.C. #--------------------------------------- # Description and Notes # Description: Two year averaged del11B measurements converted to pH via a calibration to hydrostation pH of corresponding time periods. # Provided Keywords: AMO, NAO, Coral del11B proxy, pH #--------------------------------------- # Publication # Authors: Goodkin, Nathalie F., Bo-Sian Wang, Chen-Feng You, Konrad A. Hughen, Nancy Grumet-Prouty, Nicholas R. Bates, and Scott C. Doney # Published_Date_or_Year: 2015 # Published_Title: Ocean circulation and biogeochemistry moderate interannual and decadal surface water pH changes in the Sargasso Sea # Journal_Name: Geophysical Research Letters # Volume: 42 # Issue: # Pages: # Report Number: # DOI: 10.1002/2015GL064431 # Online_Resource: http://onlinelibrary.wiley.com/doi/10.1002/2015GL064431/full # Abstract: The oceans absorb anthropogenic CO2 from the atmosphere, lowering surface ocean pH, a concern for calcifying marine organisms. The impact of ocean acidification is challenging to predict as each species appears to respond differently and because our knowledge of natural changes to ocean pH is limited in both time and space. Here we reconstruct 222?years of biennial seawater pH variability in the Sargasso Sea from a brain coral, Diploria labyrinthiformis. Using hydrographic data from the Bermuda Atlantic Time-series Study and the coral-derived pH record, we are able to differentiate pH changes due to surface temperature versus those from ocean circulation and biogeochemical changes. We find that ocean pH does not simply reflect atmospheric CO2 trends but rather that circulation/biogeochemical changes account for >90% of pH variability in the Sargasso Sea and more variability in the last century than would be predicted from anthropogenic uptake of CO2 alone. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: National Research Foundation Singapore # Grant: NRF-RF2012-03 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: NCKU Top University project # Grant: #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Ministry of Education, Taiwan # Grant: #--------------------------------------- # Funding_Agency # Funding_Agency_Name: University of Hong Kong # Grant: #--------------------------------------- # Site Information # Site_Name: John Smith's Bay # Location: North Atlantic Ocean # Country: Bermuda # Northernmost_Latitude: 32.316667 # Southernmost_Latitude: 32.316667 # Easternmost_Longitude: -64.716667 # Westernmost_Longitude: -64.716667 # Elevation: #--------------------------------------- # Data_Collection # Collection_Name: Bermuda Coral d11B Goodkin15 # First_Year: 1775 # Last_Year: 1996 # Time_Unit: AD # Core_Length: # Notes: #--------------------------------------- # Chronology: # The chronology was developed using X-radiographs. #--------------------------------------- # Variables # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) ## age_AD age,,,years AD,,,,,N ## d11Bd.laby-N-O delta 11 boron,Diploria labyrinthiformis,,permil relative to NIST SRM 951,Nov-Oct,,,analytical technique: multi-collector inductively coupled plasma mass spectrometer,N #------------------------------ # Data # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Value: NaN age_AD d11B 1996 23.79 1994 NaN 1992 23.53 1990 23.84 1988 23.90 1986 24.11 1984 23.91 1982 24.36 1980 23.75 1978 24.20 1976 23.48 1974 23.72 1972 24.44 1970 24.05 1968 24.00 1966 24.21 1964 23.52 1962 23.05 1960 23.46 1958 23.84 1956 23.64 1954 23.99 1952 23.84 1950 23.02 1948 23.13 1946 23.60 1944 24.28 1942 24.10 1940 24.35 1938 23.82 1936 23.43 1934 23.87 1932 24.43 1930 24.52 1928 24.18 1926 23.84 1923 23.31 1921 23.48 1919 24.38 1917 23.80 1915 24.44 1913 24.92 1911 24.46 1909 24.02 1907 23.99 1905 24.22 1903 24.04 1901 24.44 1899 25.16 1897 24.81 1895 24.66 1893 24.41 1891 23.82 1889 23.85 1887 23.63 1885 23.78 1883 23.91 1881 24.36 1879 24.75 1877 24.46 1875 24.12 1873 24.02 1871 24.31 1869 24.13 1867 24.32 1865 24.45 1863 24.81 1861 25.01 1859 24.36 1857 24.53 1855 24.67 1853 24.64 1851 25.04 1849 25.11 1847 24.36 1845 25.07 1843 24.96 1841 24.79 1839 24.69 1837 24.83 1835 25.16 1833 23.43 1831 24.62 1829 24.59 1827 23.57 1825 24.58 1823 23.97 1821 24.38 1819 24.36 1817 24.18 1815 23.74 1813 24.65 1811 24.37 1809 23.95 1807 24.58 1805 24.85 1803 24.53 1801 24.75 1799 24.75 1797 24.62 1795 24.12 1793 24.28 1791 23.92 1789 24.24 1787 24.09 1785 24.35 1783 24.16 1781 24.04 1779 23.60 1777 24.36 1775 23.76