# Guadeloupe 104 Year Annually Averaged Coral d18O and Sr/Ca Data #----------------------------------------------------------------------- # World Data Center for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # 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/12893 # # Original_Source_URL: http://www1.ncdc.noaa.gov/pub/data/paleo/coral/caribbean/guadaloupe2010.txt # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Corals and Sclerosponges #-------------------- # Contribution_Date # Date: 2012-04-01 #-------------------- # Title # Study_Name: Guadeloupe 104 Year Monthly Coral d18O and Sr/Ca Data #-------------------- # Investigators # Investigators: Hetzinger, S.; Pfeiffer, M.; Dullo, W.-C.; Garbe-Schönberg, D.; Halfar, J. #-------------------- # Description_and_Notes # Description: Coral stable isotope (d18O) and Sr/Ca data at monthly and annual resolution for the last 104 years from Guadeloupe, Caribbean Sea. Core Gua1 was collected from a Diploria strigosa coral specimen in April 2000. Note that for the comparison of coral proxy time series with climate indices, we have filled the 3-year gap (October 1978 to October 1981) in the coral proxy time series with calculated coral d18O values, that have been generated based on the coral d18O-SST calibration equations obtained through linear regression with SST data (for detailed calibration equations see Hetzinger et al. (2006); Table 2 therein). #-------------------- # Publication # Authors: Hetzinger, S.; Pfeiffer, M.; Dullo, W.-C.; Garbe-Schönberg, D.; Halfar, J. # Published_Date_or_Year: 2010-10-01 # Published_Title: Rapid 20th century warming in the Caribbean and impact of remote forcing on climate in the northern tropical Atlantic as recorded in a Guadeloupe coral # Journal_Name: Palaeogeography, Palaeoclimatology, Palaeoecology # Volume: 296 # Edition: # Issue: 1-2 # Pages: 111-124 # DOI: S0031018210003688 # Online_Resource: http://www.sciencedirect.com/science/article/pii/S0031018210003688 # Full_Citation: Hetzinger, S., M. Pfeiffer, W.-C. Dullo, D. Garbe-Sch�nberg, and J. Halfar. 2010. Rapid 20th century warming in the Caribbean and impact of remote forcing on climate in the northern tropical Atlantic as recorded in a Guadeloupe coral. Palaeogeography, Palaeoclimatology, Palaeoecology, Vol. 296, Issues 1-2, 1 October 2010, pp. 111-124. http://dx.doi.org/10.1016/j.palaeo.2010.06.019 # Abstract: We have generated 104-year long (1895-1999) monthly d18O and Sr/Ca time series from a fast-growing Diploria strigosa coral core drilled off Guadeloupe Island, Lesser Antilles. Coral Sr/Ca reliably records interannual to decadal surface air temperature (SAT) variations in the region and shows a pronounced warming of approximately 1.5�C since 1950, with the strongest warming (1.2�C) occurring since 1975. This warming is also evident in SAT measured at Guadeloupe, which ends in 1951. Thus, our Sr/Ca series extends the air temperature record by 56 years. We find that the past few decades are the warmest years over the entire period of record. The accelerated warming since 1950 is accompanied by a pronounced decrease in regional precipitation. This dampens the warming signal indicated by coral d18O, which is too low (only 0.7-0.8�C since 1951). Consistently, d18Osw estimated from the coral proxies also shows a strong decrease since 1950. Our data suggest an inverse relationship between SAT and precipitation (i.e. warmer and drier) for the latter half of the 20th century with the strongest trends since the mid-1970s. This is consistent with recent observational and model data, which report that while over the tropical oceans rainfall has increased due to an increase in sea surface temperatures, precipitation over land regions is reduced. A continuation of this warming and drying trend over Caribbean land regions would have severe societal consequences, especially in the context of anthropogenic warming. The El Ni�o Southern-Oscillation (ENSO) and the North Atlantic Oscillation (NAO) are the two major climate modes affecting large-scale SST variability in the northern tropical Atlantic. Both Sr/Ca and d18O show a close relationship to ENSO and the NAO. A quantitative comparison between extremes in mean March-May coral d18O and the Nino3 and NAO indices imply that climate variability in the northern tropical Atlantic is mainly forced by tropical Pacific and North Atlantic variability. Spectral analysis suggests that the relative importance of ENSO and the NAO is frequency dependent, with ENSO dominating at interannual, and the NAO dominating at interdecadal time scales. #-------------------- # Publication # Authors: Hetzinger, S.; Pfeiffer, M.; Dullo, W.-C.; Ruprecht, E. # Published_Date_or_Year: 2006 # Published_Title: Sr/Ca and d18O in a fast-growing Diploria strigosa coral: Evaluation of a new climate archive for the tropical Atlantic # Journal_Name: Geochem. Geophys. Geosyst. # Volume: 7 # Edition: # Issue: Q10002 # Pages: # DOI: 10.1029/2006GC001347 # Online_Resource: http://onlinelibrary.wiley.com/doi/10.1029/2006GC001347/abstract # Full_Citation: Hetzinger, S., M. Pfeiffer, W.-C. Dullo, E. Ruprecht, and D. Garbe-Sch�nberg. 2006. Sr/Ca and d18O in a fast-growing Diploria strigosa coral: Evaluation of a new climate archive for the tropical Atlantic. Geochem. Geophys. Geosyst., 7, Q10002, doi:10.1029/2006GC001347. # Abstract: #------------------ # Funding_Agency # Funding_Agency_Name: # Grant: #------------------ # Site_Information # Site_Name: Isle de Gosier, Guadalupe, Lesser Antilles # Location: Ocean>Atlantic Ocean>North Atlantic Ocean>Caribbean Sea>Guadeloupe # Country: France # Northernmost_Latitude: 16.20 # Southernmost_Latitude: 16.20 # Easternmost_Longitude: -61.49 # Westernmost_Longitude: -61.49 # Elevation: -1.7 m #------------------ # Data_Collection # Collection_Name: 10guad01b # Earliest_Year: 1896 # Most_Recent_Year: 1998 # Time_Unit: AD # Core_Length: # Notes: #------------------ # Species # Species_Name: Diploria strigosa # 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, Diploria strigosa, , permil VPDB, , Corals and Sclerosponges, annual average, ,N ##Sr/Ca Strontium/Calcium, Diploria strigosa, ,mmol/mol, ,Corals and Sclerosponges, annual average, ,N # #---------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Values: NAN # age d18O Sr/Ca 1896 -4.020 8.860 1897 -4.098 8.876 1898 -4.168 8.895 1899 -4.129 8.913 1900 -4.132 8.897 1901 -4.124 8.900 1902 -4.060 8.946 1903 -4.088 8.909 1904 -3.893 8.925 1905 -4.019 8.905 1906 -4.003 8.903 1907 -3.998 8.922 1908 -4.120 8.924 1909 -4.221 8.898 1910 -4.157 8.912 1911 -4.140 8.923 1912 -4.048 8.911 1913 -4.029 8.942 1914 -4.095 8.911 1915 -4.085 8.911 1916 -4.042 8.915 1917 -3.988 8.907 1918 -4.105 8.915 1919 -4.131 8.917 1920 -4.156 8.914 1921 -4.133 8.904 1922 -4.115 8.948 1923 -3.993 8.956 1924 -4.047 8.909 1925 -4.139 8.939 1926 -4.069 8.928 1927 -4.045 8.908 1928 -4.101 8.923 1929 -4.040 8.937 1930 -4.011 8.940 1931 -4.059 8.916 1932 -4.009 8.945 1933 -3.969 8.942 1934 -4.049 8.909 1935 -4.186 8.872 1936 -4.237 8.887 1937 -4.122 8.903 1938 -4.036 8.918 1939 -4.113 8.899 1940 -4.211 8.887 1941 -4.137 8.890 1942 -4.171 8.923 1943 -4.036 8.940 1944 -4.194 8.939 1945 -4.148 8.926 1946 -3.983 8.920 1947 -4.018 8.881 1948 -4.072 8.893 1949 -4.108 8.880 1950 -4.030 8.900 1951 -4.044 8.916 1952 -4.016 8.885 1953 -4.011 8.910 1954 -3.992 8.879 1955 -4.006 8.867 1956 -3.931 8.946 1957 -4.059 8.893 1958 -4.265 8.900 1959 -4.100 8.930 1960 -4.197 8.888 1961 -4.059 8.905 1962 -4.056 8.885 1963 -4.025 8.887 1964 -4.021 8.919 1965 -3.986 8.937 1966 -4.120 8.867 1967 -3.999 8.893 1968 -4.066 8.855 1969 -4.219 8.843 1970 -4.169 8.863 1971 -4.071 8.880 1972 -4.059 8.877 1973 -4.022 8.897 1974 -4.011 8.913 1975 -3.973 8.901 1976 -3.951 8.893 1977 -4.048 8.880 1978 -4.199 8.884 1979 -4.195 8.840 1980 -4.219 8.834 1981 -4.269 8.818 1982 -4.209 8.841 1983 -4.182 8.833 1984 -4.138 8.877 1985 -4.099 8.912 1986 -4.152 8.877 1987 -4.186 8.836 1988 -4.126 8.862 1989 -4.142 8.880 1990 -4.229 8.837 1991 -4.120 8.823 1992 -4.120 8.846 1993 -4.211 8.869 1994 -4.168 8.863 1995 -4.208 8.845 1996 -4.115 8.819 1997 -4.232 8.768 1998 -4.428 8.751