# La R�union Coral Oxygen Isotope Data #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #----------------------------------------------------------------------- # NOTE: Please cite Publication, and Online_Resource and date accessed when using these data. # If there is no publication information, please cite Investigators, Title, and Online_Resource and date accessed. # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/1890 # Online_Resource: # # Original_Source_URL: http://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/reunion2004.txt # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Corals and Sclerosponges #-------------------- # Contribution_Date # Date: 2004-11-01 #-------------------- # Title # Study_Name: St. Gilles Reef - Oxygen Isotope Data #-------------------- # Investigators # Investigators: Pfeiffer, M.; Timm, O.; Dullo, W.C.; Podlech, S. #-------------------- # Description_and_Notes # Description: Results of analysis of a modern coral core collected from the fringing reef near St. Gilles, La R�union. The core was collected vertically down the axis of maximum growth of the colony. The core was subsampled to obtain a bimonthly resolved timer series of d18O. In this region, seasonal variations in skeletal d18O are due to temperature, interannual and multidecadal variations reflect the changes in salinity associated with the transport of the south equatorial current. Stable isotope analysis: Carbonate powders were reacted with 100% phosphoric acid at 75�C in an online carbonate preparation line (Carbo-Kiel-single sample acid bath) connected to a Finnigan Mat 252 masspectrometer. All values are reported in per mil relative to PDB by assigning a d18O value of -2.20 to NBS-19. Reproducibility was checked by replicate analysis of laboratory standards and is better than �0.05 for d18O. Sampling resolution: The core top (1995-1900) was sampled at 2 mm increments. The base (1900-1832) was sampled at 1 mm increments. Age model: The heaviest isotopic value in any given year was assigned to August 31. All other age assignements are obtained through linear interpolation between these anchor points. St. Gilles reef, 21 02' S, 55 15'E. Porites sp., water depth 12.3m., core length 1.95m. #-------------------- # Publication # Authors: Pfeiffer, M.; Timm, O.; Dullo, W.C.; Podlech, S. # Published_Date_or_Year: 2004 # Published_Title: Oceanic forcing of interannual and multidecadal climate variability in the southwestern Indian Ocean: Evidence from a 160 year coral isotopic record (La R�union, 55E, 21S). # Journal_Name: Paleoceanography # Volume: 19 # Edition: PA4006 # Issue: # Pages: # DOI: 10.1029/2003PA000964 # Online_Resource: # Full_Citation: Pfeiffer, M., O. Timm, W.-C. Dullo, and S. Podlech. 2004. Oceanic forcing of interannual and multidecadal climate variability in the southwestern Indian Ocean: Evidence from a 160 year coral isotopic record (La R�union, 55E, 21S). Paleoceanogr 19: PA4006, doi:10.1029/2003PA000964 # Abstract: We have developed a new 163-year bimonthly coral d18O record from La R�union (55�E, 21�S). Interannual variations in coral d18O are coherent with the Southern Oscillation Index but not with regional sea surface temperature (SST). Correlations with the global SST field suggest more negative seawater d18O (d18Osw) during La Ni�a years. We propose that the signal results from changes in the strength of the South Equatorial Current and the Indonesian throughflow, which carry low salinity water. Multidecadal variations in coral d18O are coherent with regional SST, but the sign is of opposite sense as expected from the coral d18O-temperature relationship. This requires multidecadal changes in salinity large enough to overprint the SST contribution in the coral d18O record. Our results suggest that multidecadal salinity variations result from modulations in the transport of the South Equatorial Current, which varies in response to the surface wind field and/or the Indonesian throughflow. #------------------ # Funding_Agency # Funding_Agency_Name: Deutsche Forschungsgemeinschaft # Grant: Du 129, 13-2, and 129, 13-3 #------------------ # Site_Information # Site_Name: St. Gilles, La R�union # Location: Ocean>Indian Ocean>R�union # Country: R�union # Northernmost_Latitude: -21.03 # Southernmost_Latitude: -21.03 # Easternmost_Longitude: 55.25 # Westernmost_Longitude: 55.25 # Elevation: -12.3 m #------------------ # Data_Collection # Collection_Name: # Earliest_Year: 1832 # Most_Recent_Year: 1995 # Time_Unit: AD # Core_Length: 1.95 m # Notes: #------------------ # Species # Species_Name: Porites sp. # Common_Name: #------------------ # Chronology_Information # Chronology: # #---------------- # Variables # # Data variables follow that are preceded by "##" in columns one and two. # Data line variables format: Variables list, one per line, shortname-tab-longname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) # ##age age, , ,years AD, , , , ,N ##d18O delta 18O, Porites sp., , permil PDB, , corals and sclerosponges, , ,N # #---------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Values: NAN # age d18O 1995.67 -4.27 1995.5 -4.81 1995.33 -5.05 1995.17 -5.03 1995 -4.81 1994.83 -4.52 1994.67 -4.31 1994.5 -4.48 1994.33 -5.15 1994.17 -5 1994 -4.55 1993.83 -4.27 1993.67 -4.16 1993.5 -4.59 1993.33 -4.87 1993.17 -4.9 1993 -4.69 1992.83 -4.32 1992.67 -4.02 1992.5 -4.59 1992.33 -4.94 1992.17 -5.12 1992 -4.83 1991.83 -4.1 1991.67 -4.03 1991.5 -4.52 1991.33 -4.73 1991.17 -4.68 1991 -4.59 1990.83 -4.42 1990.67 -4.18 1990.5 -4.29 1990.33 -4.75 1990.17 -4.67 1990 -4.71 1989.83 -4.4 1989.67 -4.33 1989.5 -4.48 1989.33 -5.07 1989.17 -5.05 1989 -4.96 1988.83 -4.45 1988.67 -4.24 1988.5 -4.38 1988.33 -4.62 1988.17 -4.75 1988 -4.69 1987.83 -4.49 1987.67 -4.43 1987.5 -4.49 1987.33 -4.75 1987.17 -4.85 1987 -4.62 1986.83 -4.18 1986.67 -3.94 1986.5 -4.39 1986.33 -4.73 1986.17 -4.47 1986 -4.24 1985.83 -4.14 1985.67 -4.09 1985.5 -4.72 1985.33 -4.54 1985.17 -4.74 1985 -4.93 1984.83 -4.53 1984.67 -4.09 1984.5 -4.31 1984.33 -4.66 1984.17 -4.87 1984 -4.7 1983.83 -4.34 1983.67 -4.28 1983.5 -4.52 1983.33 -4.72 1983.17 -4.7 1983 -4.6 1982.83 -4.3 1982.67 -4.2 1982.5 -4.62 1982.33 -4.75 1982.17 -4.74 1982 -4.45 1981.83 -4.12 1981.67 -4.11 1981.5 -4.48 1981.33 -4.79 1981.17 -4.69 1981 -4.49 1980.83 -4.49 1980.67 -4.18 1980.5 -4.29 1980.33 -4.84 1980.17 -5.05 1980 -4.91 1979.83 -4.6 1979.67 -4.25 1979.5 -4.4 1979.33 -4.68 1979.17 -4.77 1979 -4.49 1978.83 -4.18 1978.67 -4.15 1978.5 -4.48 1978.33 -4.94 1978.17 -4.89 1978 -4.69 1977.83 -4.38 1977.67 -4.13 1977.5 -4.31 1977.33 -4.62 1977.17 -4.71 1977 -4.62 1976.83 -4.49 1976.67 -4.24 1976.5 -4.47 1976.33 -4.74 1976.17 -4.84 1976 -4.83 1975.83 -4.47 1975.67 -4.11 1975.5 -4.3 1975.33 -4.66 1975.17 -4.76 1975 -4.68 1974.83 -4.36 1974.67 -4.25 1974.5 -4.64 1974.33 -4.81 1974.17 -4.79 1974 -4.81 1973.83 -4.42 1973.67 -4.24 1973.5 -4.49 1973.33 -4.86 1973.17 -4.98 1973 -4.76 1972.83 -4.43 1972.67 -4.39 1972.5 -4.72 1972.33 -4.87 1972.17 -4.75 1972 -4.64 1971.83 -4.26 1971.67 -4.14 1971.5 -4.6 1971.33 -4.88 1971.17 -4.8 1971 -4.58 1970.83 -4.33 1970.67 -4.05 1970.5 -4.6 1970.33 -4.66 1970.17 -4.74 1970 -4.67 1969.83 -4.31 1969.67 -4.2 1969.5 -4.38 1969.33 -4.63 1969.17 -4.71 1969 -4.61 1968.83 -4.39 1968.67 -4.05 1968.5 -4.22 1968.33 -4.42 1968.17 -4.72 1968 -4.8 1967.83 -4.49 1967.67 -4.18 1967.5 -4.44 1967.33 -4.71 1967.17 -4.84 1967 -4.78 1966.83 -4.21 1966.67 -4.18 1966.5 -4.55 1966.33 -4.78 1966.17 -4.85 1966 -4.72 1965.83 -4.39 1965.67 -4.2 1965.5 -4.3 1965.33 -4.76 1965.17 -4.93 1965 -4.82 1964.83 -4.43 1964.67 -4.12 1964.5 -4.66 1964.33 -4.84 1964.17 -4.73 1964 -4.73 1963.83 -4.11 1963.67 -4.08 1963.5 -4.61 1963.33 -4.84 1963.17 -4.77 1963 -4.71 1962.83 -4.39 1962.67 -4.17 1962.5 -4.5 1962.33 -4.89 1962.17 -4.64 1962 -4.47 1961.83 -4.29 1961.67 -4.27 1961.5 -4.62 1961.33 -4.8 1961.17 -4.8 1961 -4.72 1960.83 -4.53 1960.67 -4.23 1960.5 -4.26 1960.33 -4.65 1960.17 -4.94 1960 -4.52 1959.83 -4.47 1959.67 -4.31 1959.5 -4.66 1959.33 -4.9 1959.17 -4.79 1959 -4.55 1958.83 -4.4 1958.67 -4.11 1958.5 -4.14 1958.33 -4.41 1958.17 -4.62 1958 -4.6 1957.83 -4.38 1957.67 -4.12 1957.5 -4.24 1957.33 -4.61 1957.17 -4.75 1957 -4.6 1956.83 -4.36 1956.67 -4.11 1956.5 -4.3 1956.33 -4.6 1956.17 -4.69 1956 -4.57 1955.83 -4.06 1955.67 -4.01 1955.5 -4.48 1955.33 -4.74 1955.17 -4.81 1955 -4.8 1954.83 -4.59 1954.67 -4.18 1954.5 -4.24 1954.33 -4.58 1954.17 -4.74 1954 -4.66 1953.83 -4.44 1953.67 -4.01 1953.5 -4.46 1953.33 -4.82 1953.17 -4.89 1953 -4.62 1952.83 -4.22 1952.67 -4.17 1952.5 -4.44 1952.33 -4.78 1952.17 -4.59 1952 -4.53 1951.83 -4.05 1951.67 -4.04 1951.5 -4.4 1951.33 -4.64 1951.17 -4.76 1951 -4.59 1950.83 -4.33 1950.67 -4 1950.5 -4.08 1950.33 -4.59 1950.17 -4.71 1950 -4.59 1949.83 -4.19 1949.67 -4.11 1949.5 -4.29 1949.33 -4.59 1949.17 -4.58 1949 -4.37 1948.83 -4.13 1948.67 -3.67 1948.5 -4.15 1948.33 -4.5 1948.17 -4.59 1948 -4.42 1947.83 -4.17 1947.67 -4.07 1947.5 -4.25 1947.33 -4.66 1947.17 -4.73 1947 -4.64 1946.83 -4.16 1946.67 -3.86 1946.5 -4.15 1946.33 -4.5 1946.17 -4.61 1946 -4.49 1945.83 -4.27 1945.67 -3.94 1945.5 -4.18 1945.33 -4.33 1945.17 -4.52 1945 -4.57 1944.83 -4.34 1944.67 -4.06 1944.5 -4.19 1944.33 -4.35 1944.17 -4.5 1944 -4.44 1943.83 -4.1 1943.67 -3.76 1943.5 -4.1 1943.33 -4.34 1943.17 -4.6 1943 -4.4 1942.83 -4.02 1942.67 -3.75 1942.5 -4.1 1942.33 -4.39 1942.17 -4.63 1942 -4.97 1941.83 -4.77 1941.67 -4.03 1941.5 -4.31 1941.33 -4.62 1941.17 -4.75 1941 -4.66 1940.83 -4.47 1940.67 -4.25 1940.5 -4.28 1940.33 -4.49 1940.17 -4.54 1940 -4.41 1939.83 -4.16 1939.67 -3.72 1939.5 -4.04 1939.33 -4.29 1939.17 -4.48 1939 -4.48 1938.83 -4.24 1938.67 -3.91 1938.5 -4.19 1938.33 -4.61 1938.17 -4.63 1938 -4.62 1937.83 -3.96 1937.67 -3.94 1937.5 -4.35 1937.33 -4.46 1937.17 -4.73 1937 -4.52 1936.83 -4.23 1936.67 -3.89 1936.5 -4.26 1936.33 -4.55 1936.17 -4.74 1936 -4.46 1935.83 -4.28 1935.67 -4.2 1935.5 -4.25 1935.33 -4.54 1935.17 -4.71 1935 -4.65 1934.83 -4.4 1934.67 -3.88 1934.5 -4.08 1934.33 -4.55 1934.17 -4.75 1934 -4.64 1933.83 -4.33 1933.67 -3.71 1933.5 -4.25 1933.33 -4.53 1933.17 -4.72 1933 -4.65 1932.83 -4.07 1932.67 -3.96 1932.5 -4.33 1932.33 -4.54 1932.17 -4.57 1932 -4.32 1931.83 -4.17 1931.67 -4.11 1931.5 -4.14 1931.33 -4.38 1931.17 -4.83 1931 -4.51 1930.83 -4.3 1930.67 -4.21 1930.5 -4.44 1930.33 -4.57 1930.17 -4.62 1930 -4.52 1929.83 -4.26 1929.67 -3.83 1929.5 -4.36 1929.33 -4.59 1929.17 -4.64 1929 -4.54 1928.83 -4.32 1928.67 -4 1928.5 -4.32 1928.33 -4.65 1928.17 -4.75 1928 -4.6 1927.83 -4.36 1927.67 -4.21 1927.5 -4.43 1927.33 -4.62 1927.17 -4.69 1927 -4.5 1926.83 -4.15 1926.67 -4.12 1926.5 -4.59 1926.33 -4.83 1926.17 -4.79 1926 -4.43 1925.83 -4.27 1925.67 -4.16 1925.5 -4.47 1925.33 -4.57 1925.17 -4.46 1925 -4.23 1924.83 -4.02 1924.67 -3.85 1924.5 -4.23 1924.33 -4.52 1924.17 -4.41 1924 -4.14 1923.83 -4.02 1923.67 -3.85 1923.5 -4.38 1923.33 -4.68 1923.17 -4.72 1923 -4.59 1922.83 -4.35 1922.67 -3.83 1922.5 -4.2 1922.33 -4.63 1922.17 -4.63 1922 -4.41 1921.83 -4.26 1921.67 -3.89 1921.5 -4.38 1921.33 -4.59 1921.17 -4.69 1921 -4.49 1920.83 -4.02 1920.67 -4 1920.5 -4.33 1920.33 -4.56 1920.17 -4.67 1920 -4.47 1919.83 -3.99 1919.67 -3.76 1919.5 -4.28 1919.33 -4.67 1919.17 -4.61 1919 -4.33 1918.83 -4.16 1918.67 -4.13 1918.5 -4.38 1918.33 -4.57 1918.17 -4.72 1918 -4.52 1917.83 -4.26 1917.67 -3.95 1917.5 -4.1 1917.33 -4.8 1917.17 -4.76 1917 -4.5 1916.83 -4.09 1916.67 -3.97 1916.5 -4.42 1916.33 -4.65 1916.17 -4.68 1916 -4.51 1915.83 -4.25 1915.67 -4.16 1915.5 -4.58 1915.33 -4.75 1915.17 -4.67 1915 -4.51 1914.83 -4.33 1914.67 -4.13 1914.5 -4.17 1914.33 -4.41 1914.17 -4.73 1914 -4.76 1913.83 -4.36 1913.67 -4.08 1913.5 -4.33 1913.33 -4.67 1913.17 -4.82 1913 -4.58 1912.83 -4.19 1912.67 -3.84 1912.5 -4.3 1912.33 -4.5 1912.17 -4.55 1912 -4.39 1911.83 -4.09 1911.67 -3.98 1911.5 -4.21 1911.33 -4.34 1911.17 -4.37 1911 -4.05 1910.83 -3.83 1910.67 -3.71 1910.5 -3.89 1910.33 -4.15 1910.17 -4.5 1910 -4.26 1909.83 -4 1909.67 -3.73 1909.5 -3.89 1909.33 -4.41 1909.17 -4.57 1909 -4.5 1908.83 -3.96 1908.67 -3.94 1908.5 -4.32 1908.33 -4.51 1908.17 -4.64 1908 -4.62 1907.83 -4.37 1907.67 -4 1907.5 -4.15 1907.33 -4.43 1907.17 -4.75 1907 -4.79 1906.83 -4.33 1906.67 -3.66 1906.5 -4.14 1906.33 -4.62 1906.17 -4.78 1906 -4.51 1905.83 -4.21 1905.67 -3.72 1905.5 -4.1 1905.33 -4.66 1905.17 -4.71 1905 -4.44 1904.83 -4.37 1904.67 -3.9 1904.5 -4.16 1904.33 -4.66 1904.17 -4.33 1904 -3.8 1903.83 -3.61 1903.67 -3.53 1903.5 -3.88 1903.33 -4.22 1903.17 -4.04 1903 -3.85 1902.83 -3.69 1902.67 -3.52 1902.5 -3.92 1902.33 -4.32 1902.17 -4.37 1902 -4.41 1901.83 -4.23 1901.67 -4.04 1901.5 -4.13 1901.33 -4.33 1901.17 -4.62 1901 -4.32 1900.83 -3.98 1900.67 -3.59 1900.5 -4.03 1900.33 -4.47 1900.17 -4.2 1900 -3.93 1899.83 -3.75 1899.67 -3.56 1899.5 -3.69 1899.33 -4.24 1899.17 -4.62 1899 -4.37 1898.83 -4 1898.67 -3.71 1898.5 -3.92 1898.33 -4.41 1898.17 -4.34 1898 -4.47 1897.83 -3.99 1897.67 -3.49 1897.5 -3.93 1897.33 -4.35 1897.17 -4.52 1897 -4.45 1896.83 -4.21 1896.67 -3.78 1896.5 -4.31 1896.33 -4.59 1896.17 -4.61 1896 -4.24 1895.83 -3.92 1895.67 -3.66 1895.5 -4.17 1895.33 -4.52 1895.17 -4.57 1895 -4.34 1894.83 -4.03 1894.67 -3.85 1894.5 -4.25 1894.33 -4.39 1894.17 -4.56 1894 -4.37 1893.83 -4.04 1893.67 -3.91 1893.5 -4.06 1893.33 -4.53 1893.17 -4.75 1893 -4.44 1892.83 -4.08 1892.67 -3.75 1892.5 -4.09 1892.33 -4.62 1892.17 -4.63 1892 -4.31 1891.83 -3.89 1891.67 -3.63 1891.5 -4.23 1891.33 -4.52 1891.17 -4.6 1891 -4.61 1890.83 -4.24 1890.67 -3.93 1890.5 -4.29 1890.33 -4.58 1890.17 -4.72 1890 -4.44 1889.83 -4.23 1889.67 -3.81 1889.5 -3.92 1889.33 -4.32 1889.17 -4.13 1889 -3.98 1888.83 -3.85 1888.67 -3.76 1888.5 -4.47 1888.33 -4.52 1888.17 -4.51 1888 -4.31 1887.83 -3.98 1887.67 -3.78 1887.5 -4.21 1887.33 -4.58 1887.17 -4.46 1887 -4.47 1886.83 -4.2 1886.67 -3.79 1886.5 -4.07 1886.33 -4.31 1886.17 -4.39 1886 -4.54 1885.83 -4.24 1885.67 -3.38 1885.5 -4.11 1885.33 -4.6 1885.17 -4.6 1885 -4.52 1884.83 -4.18 1884.67 -3.9 1884.5 -3.96 1884.33 -4.09 1884.17 -4.28 1884 -4.19 1883.83 -4.05 1883.67 -3.84 1883.5 -4.01 1883.33 -4.23 1883.17 -4.41 1883 -4.45 1882.83 -4.17 1882.67 -3.55 1882.5 -3.94 1882.33 -4.21 1882.17 -4.26 1882 -4.3 1881.83 -4.01 1881.67 -3.69 1881.5 -3.84 1881.33 -4.5 1881.17 -4.41 1881 -4.12 1880.83 -3.91 1880.67 -3.76 1880.5 -4.19 1880.33 -4.53 1880.17 -4.3 1880 -4.23 1879.83 -3.88 1879.67 -3.73 1879.5 -4.28 1879.33 -4.47 1879.17 -4.74 1879 -4.47 1878.83 -4.1 1878.67 -3.92 1878.5 -4 1878.33 -4.4 1878.17 -4.49 1878 -4.44 1877.83 -4.31 1877.67 -3.69 1877.5 -4.06 1877.33 -4.33 1877.17 -4.42 1877 -4.18 1876.83 -3.83 1876.67 -3.69 1876.5 -4.14 1876.33 -4.32 1876.17 -4.15 1876 -4.02 1875.83 -3.83 1875.67 -3.59 1875.5 -3.94 1875.33 -4.39 1875.17 -4.35 1875 -4.19 1874.83 -3.9 1874.67 -3.83 1874.5 -4.28 1874.33 -4.54 1874.17 -4.65 1874 -4.43 1873.83 -4.07 1873.67 -3.83 1873.5 -3.93 1873.33 -4.11 1873.17 -3.95 1873 -4.59 1872.83 -3.9 1872.67 -3.86 1872.5 -4.29 1872.33 -4.53 1872.17 -4.33 1872 -4.2 1871.83 -3.9 1871.67 -3.72 1871.5 -4.18 1871.33 -4.36 1871.17 -4.3 1871 -4.17 1870.83 -3.67 1870.67 -3.53 1870.5 -4.03 1870.33 -4.25 1870.17 -4.44 1870 -4.16 1869.83 -3.71 1869.67 -3.45 1869.5 -4.06 1869.33 -4.17 1869.17 -4.24 1869 -4.15 1868.83 -3.82 1868.67 -3.69 1868.5 -3.97 1868.33 -4.14 1868.17 -4.15 1868 -4.06 1867.83 -3.78 1867.67 -3.54 1867.5 -4.1 1867.33 -4.42 1867.17 -4.39 1867 -4.08 1866.83 -3.69 1866.67 -3.68 1866.5 -4.27 1866.33 -4.33 1866.17 -4.29 1866 -4.08 1865.83 -3.78 1865.67 -3.66 1865.5 -4.34 1865.33 -4.59 1865.17 -4.58 1865 -4.19 1864.83 -3.86 1864.67 -3.75 1864.5 -4.03 1864.33 -4.53 1864.17 -4.57 1864 -4.26 1863.83 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