Abraham Reef Annual Coral Stable Isotope Data ----------------------------------------------------------------------- World Data Center for Paleoclimatology, Boulder and NOAA Paleoclimatology Program ----------------------------------------------------------------------- NOTE: PLEASE CITE CONTRIBUTORS WHEN USING THIS DATA!!!!! NAME OF DATA SET: Abraham Reef Annual Coral Stable Isotope Data LAST UPDATE: 10/2006 (Original receipt by WDC Paleo) CONTRIBUTORS: Ellen Druffel and Sheila Griffin, University of California, Irvine. IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2006-097 SUGGESTED DATA CITATION: Druffel, E.R.M. and S. Griffin. 2006. Abraham Reef Annual Coral Stable Isotope Data. IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series # 2006-097. NOAA/NCDC Paleoclimatology Program, Boulder CO, USA. ORIGINAL REFERENCE: Druffel, E.R.M. and S. Griffin. 1999. Variability of surface ocean radiocarbon and stable isotopes in the southwestern Pacific. Journal of Geophysical Research - Oceans, v.104 (C10) pp. 23,607-23,613. ABSTRACT: We present high-precision radiocarbon (D14C) results and stable isotope (d18O and d13C) records for a coral from Heron Island (23°S, 152°E) and new stable isotope (d18O and d13C) records for annual coral bands from Abraham Reef (22°S, 153°E) in the southern Great Barrier Reef studied earlier [Druffel and Griffin, 1993]. These tracers provide unique information on the regional water mass history, and together these data allow us to constrain the variability of circulation in the upper Pacific over the past four centuries. First, we observe decreases in d18O of coral from Abraham Reef and Heron Island, indicating an increase in sea surface temperature and/or a decrease in surface salinity since 1850. Second, the small Suess effect value (D14C decrease from 1880 to 1955, due mostly to fossil fuel CO2) observed previously at Abraham Reef [Druffel and Griffin, 1993] is confirmed in the measurements reported here from the Heron Island coral. This value is low compared to those observed in other areas of the ocean [Druffel, 1997; Druffel and Linick, 1978; Nozaki et al., 1978] between 1880 and 1955. Third, we report alterations in the correlation between El Nino events and the occurrence of low D14C, which is indicative of long-term change(s) in circulation in the SW Pacific. The D14C shifts reported here are not large, but even small temporal changes in prebomb D14C suggest that important changes in the large-scale state of the ocean have occurred, such as a temporal change in circulation. GEOGRAPHIC REGION: Great Barrier Reef, southwest tropical Pacific PERIOD OF RECORD: 1638 - 1983 AD FUNDING SOURCES: National Science Foundation (USA) Chemical Oceanography Program grants OCE-8315260, OCE-868263, OCE-8915919, OCE-9314691, and OCE-9711326. DESCRIPTION: Stable isotope (d18O and d13C) record from Abraham Reef (22° 6'S, 153° 0'E) in the southern Great Barrier Reef, Australia. This is a refinement of the record available previously (Druffel and Griffin, JGR 1993) which showed biennial d18O for the period 1635-1957. A decrease in d18O of annual coral bands from Abraham Reef is observed during the time period 1635-1983. DATA: Isotope values per mil VPDB Year d13C d18O avg. avg. 1638.3 -1.766 -4.008 1639.3 -1.044 -3.977 1640.3 -1.531 -3.853 1641.3 -1.69 -4.113 1642.3 -1.473 -3.913 1643.3 -1.693 -4.015 1644.3 -1.771 -4.077 1645.3 -1.827 -4.069 1646.3 -1.634 -4.276 1647.3 -1.487 -4.176 1648.3 -1.707 -4.048 1649.3 -1.45 -4.055 1650.3 -1.263 -4.131 1651.3 -1.411 -3.992 1652.3 -1.537 -4.042 1653.3 -1.776 -3.997 1654.3 -2.197 -4.229 1655.3 -2.015 -4.234 1656.3 -2.081 -4.051 1657.3 -1.949 -3.87 1658.3 -1.929 -4.13 1659.3 -0.888 -4.011 1659.3 -1.819 -3.979 1660.3 -1.187 -3.995 1660.3 -1.804 -4.081 1661.3 -1.265 -4.174 1661.3 -1.537 -4.273 1662.3 -1.37 -4.212 1662.3 -1.088 -4.247 1663.3 -1.313 -4.138 1663.3 -1.077 -4.102 1664.3 -1.374 -4.008 1664.3 -0.832 -4.077 1665.3 -0.935 -3.93 1665.3 -0.76 -3.838 1666.3 -1.234 -4.076 1667.3 -0.875 -3.849 1668.3 -1.414 -4.019 1669.3 -0.651 -4.074 1670.3 -1.135 -4.097 1671.3 -1.245 -4.097 1672.3 -1.197 -4.051 1673.3 -1.245 -4.09 1674.3 -0.989 -4.032 1675.3 -1.292 -3.84 1676.3 -0.714 -3.935 1677.3 -0.604 -4.073 1678.3 -1.275 -4.23 1679.3 -1.221 -3.981 1680.3 -1.067 -3.957 1681.3 -0.956 -3.818 1682.3 -0.954 -4.044 1683.3 -0.354 -4.201 1684.3 -0.977 -3.84 1685.3 -1.404 -4.055 1686.3 -1.675 -4.126 1687.3 -1.096 -4.051 1688.3 -0.298 -3.907 1689.3 -0.245 -3.928 1690.3 -0.459 -4.284 1691.3 -0.885 -4.028 1692.3 -0.502 -3.999 1693.3 -0.845 -4.117 1694.3 -0.67 -4.067 1695.3 -0.427 -4.039 1696.3 -0.904 -4.037 1697.3 -0.705 -4.216 1698.3 -0.69 -4.171 1699.3 -0.068 -4.119 1700.3 -0.186 -4.091 1701.3 0.036 -4.134 1702.3 -0.269 -4.075 1703.3 -0.391 -3.968 1704.3 -0.381 -4.071 1705.3 -0.953 -4.228 1706.3 -0.731 -4.123 1707.3 -1.238 -4.163 1708.3 -1.611 -4.181 1709.3 -1.859 -4.288 1710.3 -1.378 -4.367 1714.3 -0.772 -4.114 1715.3 -0.787 -4.135 1716.3 -1.082 -4.149 1717.3 -1.507 -4.015 1718.3 -1.525 -3.854 1719.3 -2.018 -4.133 1720.3 -1.655 -4.255 1721.3 -0.8 -4.24 1722.3 -0.362 -4.076 1723.3 -0.582 -4.217 1724.3 -0.886 -4.388 1725.3 -0.526 -4.195 1726.3 -1.025 -4.203 1727.3 -1.016 -4.246 1728.3 -0.894 -4.143 1729.3 -0.419 -4.088 1730.3 -0.495 -3.689 1731.3 -0.62 -4.219 1732.3 -0.637 -4.084 1733.3 -0.803 -4.084 1734.3 -1.476 -4.281 1735.3 -0.943 -3.93 1736.3 -1.162 -4.221 1737.3 -1.211 -4.171 1738.3 -1.054 -4.204 1739.3 -1.247 -4.248 1740.3 -0.808 -4.202 1741.3 -1.229 -4.225 1742.3 -0.766 -4.141 1744.3 -0.221 -4.165 1745.3 -0.27 -4.065 1746.3 -0.414 -4.223 1747.3 -0.348 -4.098 1748.3 -0.308 -4.145 1749.3 -0.457 -4.155 1750.3 -0.443 -4.178 1751.3 -0.643 -4.056 1752.3 -0.811 -4.153 1753.3 -0.949 -3.978 1754.3 -1.098 -4.313 1755.3 -0.33 -4.241 1756.3 -0.423 -4.262 1758.3 -0.286 -4.217 1759.3 -0.269 -4.089 1760.3 -0.621 -4.253 1761.3 -0.335 -4.051 1762.3 -0.546 -4.167 1763.3 -0.659 -4.417 1764.3 -0.515 -4.273 1765.3 -0.708 -4.164 1766.3 -0.93 -4.094 1767.3 -1.328 -4.17 1768.3 -1.366 -3.996 1769.3 -1.281 -4.076 1770.3 -0.542 -4.14 1771.3 -0.652 -3.996 1772.3 -1.287 -4.101 1773.3 -1.286 -4.17 1774.3 -1.877 -4.262 1775.3 -1.704 -4.294 1776.3 -1.447 -4.191 1777.3 -1.172 -4.232 1778.3 -1.323 -4.151 1779.3 -1.451 -4.091 1780.3 -1.463 -4.107 1781.3 -0.798 -4.272 1782.3 -0.71 -4.344 1783.3 -0.568 -4.27 1784.3 -0.949 -4.275 1785.3 -0.901 -4.144 1786.3 -0.751 -4.222 1787.3 -0.484 -4.186 1788.3 -0.189 -4.135 1789.3 0.067 -3.952 1790.3 -0.327 -4.237 1791.3 -0.455 -4.429 1792.3 -0.49 -4.244 1793.3 -0.954 -4.301 1794.3 -0.849 -4.224 1795.3 -1.315 -4.343 1796.3 -1.216 -4.299 1797.3 -1.179 -4.187 1798.3 -1.415 -4.38 1799.3 -1.394 -4.272 1800.3 -1.498 -4.363 1801.3 -1.56 -4.375 1802.3 -1.263 -4.225 1803.3 -1.355 -4.109 1804.3 -1.112 -4.202 1805.3 -0.96 -4.172 1806.3 -0.818 -4.133 1807.3 -0.67 -4.079 1808.3 -0.505 -4.27 1809.3 -0.773 -3.995 1810.3 -0.812 -4.222 1811.3 -0.857 -4.027 1812.3 -0.842 -4.182 1813.3 -0.314 -4.221 1814.3 -0.336 -4.104 1815.3 -0.178 -4.09 1816.3 -0.032 -4.333 1817.3 -0.178 -4.364 1818.3 -0.375 -4.501 1819.3 -0.368 -4.406 1820.3 -0.365 -4.333 1821.3 -0.499 -4.163 1822.3 -0.644 -4.433 1823.3 -0.545 -4.205 1824.3 -0.603 -4.423 1825.3 -0.468 -4.157 1826.3 -0.395 -4.473 1827.3 -0.587 -4.179 1828.3 -0.481 -4.507 1829.3 -0.242 -4.343 1830.3 -0.332 -4.43 1831.3 -0.542 -4.326 1832.3 -0.58 -4.285 1833.3 -0.202 -4.163 1834.3 -0.142 -4.264 1835.3 -0.398 -4.051 1836.3 -0.282 -4.233 1837.3 -0.353 -4.144 1838.3 -0.487 -4.214 1839.3 -0.475 -4.259 1840.3 -0.524 -4.298 1841.3 -0.468 -4.155 1842.3 -0.532 -4.43 1843.3 -0.42 -4.098 1844.3 -0.703 -4.377 1845.3 -0.799 -4.207 1846.3 -0.792 -4.251 1849.3 -0.587 -4.334 1850.3 -0.706 -4.365 1851.3 -0.73 -4.167 1852.3 -0.575 -4.345 1853.3 -0.667 -4.123 1854.3 -0.361 -4.194 1855.3 -0.448 -4.112 1856.3 -0.311 -4 1857.3 -0.282 -4.204 1858.3 -0.21 -4.176 1859.3 -0.216 -4.147 1860.3 -0.327 -4.157 1861.3 -0.015 -4.157 1862.3 -0.047 -4.259 1863.3 0.128 -4.206 1864.3 -0.312 -4.133 1865.3 -0.498 -4.121 1866.3 -0.461 -3.98 1867.3 -0.453 -4.165 1868.3 -0.572 -4.272 1869.3 -0.322 -4.226 1870.3 -0.587 -4.381 1871.3 -0.489 -4.331 1872.3 -0.429 -4.305 1873.3 -0.405 -4.42 1874.3 -0.512 -4.256 1875.3 -0.842 -4.494 1876.3 -0.641 -4.29 1877.3 -0.59 -4.35 1878.3 -0.189 -4.176 1879.3 -0.307 -4.359 1881.3 -0.471 -4.254 1882.3 -0.244 -4.322 1883.3 -0.261 -4.058 1884.3 -0.246 -4.356 1885.3 -0.145 -4.187 1886.3 -0.203 -4.197 1887.3 -0.239 -4.288 1888.3 -0.2 -4.33 1889.3 -0.262 -4.303 1890.3 -0.579 -4.258 1891.3 -0.636 -4.238 1892.3 -0.483 -4.371 1893.3 -0.484 -4.345 1894.3 -0.455 -4.463 1895.3 -0.404 -4.316 1896.3 -0.428 -4.338 1897.3 -0.498 -4.188 1898.3 -0.621 -4.348 1899.3 -0.592 -4.26 1900.3 -0.54 -4.343 1901.3 -0.53 -4.044 1902.3 -0.859 -4.423 1903.3 -0.609 -4.234 1904.3 -0.584 -4.283 1905.3 -0.556 -4.075 1906.3 -0.645 -4.376 1907.3 -0.366 -4.217 1908.3 -0.507 -4.421 1909.3 -0.503 -4.333 1910.3 -0.681 -4.611 1911.3 -0.772 -4.349 1912.3 -0.467 -4.467 1913.3 -0.571 -4.296 1914.3 -0.62 -4.263 1915.3 -0.761 -4.264 1916.3 -0.808 -4.25 1917.3 -0.747 -4.358 1918.3 -0.574 -4.328 1919.3 -0.638 -4.392 1920.3 -0.481 -4.184 1921.3 -0.429 -4.245 1922.3 -0.317 -4.325 1923.3 -0.483 -4.631 1924.3 -0.542 -4.368 1925.3 -0.591 -4.519 1926.3 -0.463 -4.315 1927.3 -0.708 -4.612 1928.3 -0.512 -4.4 1929.3 -0.197 -4.32 1930.3 -0.502 -4.399 1931.3 -0.352 -4.428 1932.3 -0.32 -4.401 1933.3 -0.387 -4.347 1934.3 -0.596 -4.359 1935.3 -0.717 -4.428 1936.3 -0.86 -4.269 1937.3 -0.671 -4.138 1939.3 -0.568 -4.178 1940.3 -0.669 -4.348 1941.3 -0.618 -4.104 1942.3 -1.342 -4.221 1943.3 -1.337 -4.344 1944.3 -0.792 -4.191 1945.3 -0.621 -4.408 1946.3 -0.992 -4.521 1947.3 -0.94 -4.509 1948.3 -0.859 -4.355 1949.3 -0.776 -4.172 1950.3 -0.841 -4.299 1951.3 -1.085 -4.496 1952.3 -1.191 -4.45 1953.3 -1.271 -4.45 1954.3 -1.137 -4.375 1955.3 -0.907 -4.308 1956.3 -1.155 -4.6 1956.3 -1.103 -4.446 1957.3 -0.78 -4.479 1958.3 -1.102 -4.634 1959.3 -1.265 -4.387 1959.3 -1.376 -4.301 1959.6 -0.836 -4.402 1960.6 -0.782 -4.267 1960.6 -0.893 -4.281 1961.6 -0.902 -4.416 1962.6 -0.888 -4.413 1963.6 -0.774 -4.46 1964.6 -0.411 -4.405 1965.6 -0.697 -4.495 1965.6 -0.615 -4.383 1966.6 -0.62 -4.241 1967.6 -0.754 -4.481 1968.6 -0.784 -4.518 1969.6 -0.88 -4.4 1970.6 -0.798 -4.277 1971.6 -0.871 -4.485 1972.6 -0.597 -4.303 1974.3 -0.853 -4.551 1976.3 -0.806 -4.533 1977.3 -0.808 -4.615 1978.3 -0.547 -4.524 1979.3 -0.601 -4.663 1981.3 -0.718 -4.525 1982.3 -0.665 -4.61 1983.3 -0.465 -4.273