Conical Rocks, Great Barrier Reef Coral Data Set --------------------------------------------------------------------- NOAA Paleoclimatology Program and World Data Center for Paleoclimatology, Boulder --------------------------------------------------------------------- NOTE: PLEASE CITE ORIGINAL REFERENCE WHEN USING THIS DATA!!!!! NAME OF DATA SET: Great Barrier Reef Coral Data Set LAST UPDATE: 3/2001 (Original Receipt by WDC Paleo) CONTRIBUTORS: Janice Lough, Australian Institute of Marine Science IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2001-024 SUGGESTED DATA CITATION: Lough, J.M. and D.J. Barnes, 2001, Great Barrier Reef Coral Data Set, IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series #2001-024. NOAA/NGDC Paleoclimatology Program, Boulder CO, USA. ORIGINAL REFERENCES: Lough, J.M. and D.J. Barnes, 2000. Environmental controls on growth of the massive coral Porites. Journal of Experimental Marine Biology and Ecology, 245: 225-243. Lough, J.M. and D.J. Barnes, 1997. Several centuries of variation in skeletal extension, density and calcification in massive Porites colonies from the Great Barrier Reef: a proxy for seawater temperature and a background of variability against which to identify unnatural change. Journal of Experimental Marine Biology and Ecology, 211: 29-67. Chalker, B.E. and D.J. Barnes, 1990. Gamma densitometry for the measurement of coral skeletal density. Coral Reefs, 4: 95-100. GEOGRAPHIC REGION: subtropical southwestern Pacific PERIOD OF RECORD: 1479-1991 AD DESCRIPTION: Great Barrier Reef Coral Data Set Extension, Density, and Calcification data from 35 Porites coral cores covering the entire length of the Great Barrier Reef, Australia. Data set contains 35 individual core data sets plus time series 1746-1982 of average calcification rate for 10 of these sites. The Australian Institute of Marine Science began collecting cores from very large massive colonies of Porites on the Great Barrier Reef in the early 1980s. Such cores cannot normally be identified to species. The cores were mounted and sawn to remove slices that were about 6-7mm thick. All slices were X-rayed and skeletal density measured along a central track on each slice using a gamma densitometer. The high density portion of annual density bands in Porites from the Great Barrier Reef appears to form usually between October and March, the Southern Hemisphere summer. Peaks in the density profiles were successively counted backwards from the last (outermost or youngest) peak. Density was assumed to peak in January and the most recent peak was dated from the date of collection of the core. Dates were then assigned to all peaks in the series. Time series of the following skeletal growth parameters were then obtained: 1) Average annual density (g.cm-3) 2) Annual linear extension measured between high density peaks (cm.yr-1) 3) Annual calcification (g.cm-2.yr-1_; the product of annual average density and annual linear extension These data were obtained from coral cores taken at 35 sites on the Great Barrier Reef. The density profiles do not always display regular, obvious annual peaks and we could not be absolutely sure of the dating for some profiles. We consider there may be errors of + or - 2-3 years in the starting data of some of these series. Reef Latitude Longitude Species Collected Start Year End Year Core ID Conical Rocks 15.13S 145.32E Porites 1985 1851 1984 CNR01B Year Ext Density Calcification 1851 1.346 1.241 1.671 1852 2.464 1.211 2.982 1853 2.870 1.165 3.345 1854 2.565 1.157 2.968 1855 1.702 1.183 2.012 1856 3.327 1.182 3.934 1857 1.778 1.162 2.067 1858 2.718 1.038 2.821 1859 2.032 1.233 2.506 1860 1.930 1.174 2.266 1861 3.150 1.204 3.792 1862 2.235 1.179 2.636 1863 1.981 1.125 2.229 1864 2.896 1.169 3.384 1865 1.321 1.182 1.562 1866 2.489 1.187 2.954 1867 3.277 1.127 3.693 1868 2.159 1.172 2.531 1869 2.235 1.207 2.698 1870 3.099 1.146 3.551 1871 2.997 1.198 3.591 1872 0.864 1.206 1.042 1873 1.651 1.225 2.023 1874 1.651 1.234 2.038 1875 3.099 1.147 3.554 1876 1.499 1.291 1.934 1877 1.143 1.298 1.484 1878 3.607 1.168 4.211 1879 3.912 1.187 4.641 1880 1.448 1.327 1.921 1881 1.981 1.321 2.617 1882 2.362 1.155 2.729 1883 1.753 1.170 2.051 1884 0.991 1.238 1.226 1885 2.337 1.232 2.879 1886 3.861 1.185 4.574 1887 0.711 1.196 0.851 1888 2.794 1.130 3.157 1889 1.372 1.118 1.534 1890 1.727 1.141 1.971 1891 3.023 1.045 3.158 1892 1.600 1.163 1.861 1893 0.838 1.178 0.988 1894 1.168 1.229 1.436 1895 2.311 1.158 2.677 1896 2.286 1.018 2.327 1897 1.499 1.056 1.582 1898 1.956 1.116 2.183 1899 0.864 1.292 1.116 1900 2.438 1.355 3.304 1901 1.473 1.326 1.953 1902 1.346 1.225 1.649 1903 2.515 1.185 2.980 1904 2.286 1.272 2.908 1905 1.219 1.242 1.515 1906 2.718 1.247 3.388 1907 2.159 1.268 2.737 1908 1.651 1.239 2.046 1909 0.991 1.233 1.222 1910 1.981 1.146 2.270 1911 1.549 1.118 1.732 1912 1.524 1.084 1.652 1913 1.854 0.982 1.821 1914 1.854 1.073 1.989 1915 2.311 1.267 2.928 1916 2.362 1.252 2.957 1917 1.270 1.195 1.518 1918 1.422 1.139 1.620 1919 1.803 1.095 1.974 1920 1.753 1.071 1.877 1921 1.346 1.091 1.468 1922 1.245 1.314 1.635 1923 4.039 1.165 4.704 1924 1.829 1.276 2.333 1925 3.962 1.213 4.806 1926 3.124 1.139 3.559 1927 2.210 1.178 2.603 1928 2.515 1.107 2.784 1929 1.930 1.172 2.263 1930 1.143 1.188 1.358 1931 2.819 1.218 3.434 1932 2.007 1.197 2.402 1933 2.134 1.197 2.554 1934 2.794 1.088 3.041 1935 1.499 1.108 1.660 1936 1.295 1.099 1.423 1937 1.168 1.179 1.378 1938 2.921 1.148 3.353 1939 2.032 1.293 2.627 1940 1.295 1.224 1.586 1941 2.007 1.199 2.405 1942 2.057 1.167 2.402 1943 1.778 1.156 2.056 1944 1.829 1.128 2.063 1945 3.988 1.075 4.286 1946 1.092 1.237 1.351 1947 1.118 1.286 1.437 1948 1.194 1.297 1.548 1949 1.930 1.144 2.208 1950 1.753 1.131 1.982 1951 1.803 1.088 1.962 1952 3.581 1.039 3.721 1953 1.676 1.256 2.106 1954 2.286 1.183 2.705 1955 2.388 1.158 2.765 1956 1.575 1.309 2.061 1957 2.540 1.236 3.140 1958 1.981 1.215 2.408 1959 1.854 1.254 2.326 1960 1.600 1.247 1.996 1961 2.438 1.215 2.962 1962 1.676 1.213 2.034 1963 1.956 1.230 2.405 1964 2.286 1.199 2.742 1965 1.499 1.165 1.746 1966 2.515 1.137 2.860 1967 1.194 1.192 1.424 1968 2.413 1.204 2.904 1969 1.702 1.092 1.858 1970 1.676 1.047 1.756 1971 1.067 1.049 1.119 1972 1.422 1.131 1.609 1973 1.956 1.123 2.197 1974 1.880 1.188 2.233 1975 1.753 1.174 2.057 1976 1.295 1.158 1.499 1977 1.981 1.138 2.255 1978 0.762 1.128 0.859 1979 1.397 1.136 1.587 1980 2.057 1.115 2.294 1981 0.762 1.120 0.853 1982 2.794 1.127 3.150 1983 1.905 1.122 2.137 1984 0.660 1.111 0.734