# Ogasawara Coral Winter Sr/Ca and U/Ca Data and PDO Reconstruction #----------------------------------------------------------------------- # 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/9954 # # Original_Source_URL: http://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/ogasawara2010pdo.txt # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Corals and Sclerosponges #-------------------- # Contribution_Date # Date: 2010-08-01 #-------------------- # Title # Study_Name: Ogasawara Coral Winter Sr/Ca and U/Ca Data and PDO Reconstruction #-------------------- # Investigators # Investigators: Felis, T.; Suzuki, A.; Kuhnert, H.; Dima, M.; Lohmann, G.; Kawahata, H. #-------------------- # Description_and_Notes # Description: We generated an index of reconstructed Pacific Decadal Oscillation (PDO) variability by combining the November-December-January-February (NDJF) Sr/Ca and U/Ca time series of the Ogasawara coral record (Felis et al., 2009) with a growth index based on geoduck clams (Panopea abrupta) from the Strait of Juan de Fuca (Strom et al., 2004), a coastal site in the eastern midlatitude North Pacific (~48.12�N, 122.95�W, Washington State, northwest U.S.). The NDJF coral Sr/Ca and U/Ca time series were calculated from the bimonthly resolved coral record as the average of the corresponding November-December (ND) and January-February (JF) values. The NDJF value of a given year (e.g., 1901) includes the ND value of the preceding year (1900). The ring-width index is based on annual growth rings of 6 to 23 geoduck shells, and has been reported to document local SST and PDO variability (Strom et al., 2004). All three time series were detrended and normalized to unit variance over their period of overlap (1873-1994). Then, a coral index was calculated as the average of the detrended and normalized NDJF Sr/Ca and U/Ca time series. Consequently, the coral-geoduck index was derived as the average of this coral index and the detrended and normalized geoduck growth index (Felis et al., 2010). Core OGA-02-1 was drilled vertically through a living Porites coral at Miyanohama on the north coast of Chichijima in the Ogasawara Islands (Japan). The core is without gap over its total length of 1.74 m. Miyanohama (Chichijima) reef, Ogasawara Islands, Japan: 27�6.355'N, 142�11.645'E, 5.6m water depth. #-------------------- # Publication # Authors: Felis, T.; Suzuki, A.; Kuhnert, H.; Dima, M.; Lohmann, G.; Kawahata, H.c # Published_Date_or_Year: 2010-08-29 # Published_Title: Pacific Decadal Oscillation documented in a coral record of North Pacific winter temperature since 1873. # Journal_Name: Geophys. Res. Lett. # Volume: 37 # Edition: # Issue: L14605 # Pages: # DOI: 10.1029/2010GL043572 # Online_Resource: http://onlinelibrary.wiley.com/doi/10.1029/2010GL043572/abstract # Full_Citation: Felis, T., A. Suzuki, H. Kuhnert, N. Rimbu, and H. Kawahata. 2010. Pacific Decadal Oscillation documented in a coral record of North Pacific winter temperature since 1873. Geophys. Res. Lett., 37, L14605, doi:10.1029/2010GL043572. # Abstract: The Pacific Decadal Oscillation (PDO), the leading mode of sea surface temperature (SST) anomalies in the extratropical North Pacific Ocean, has widespread impacts on precipitation in the Americas and marine fisheries in the North Pacific. However, marine proxy records with a temporal resolution that resolves interannual to interdecadal SST variability in the extratropical North Pacific are extremely rare. Here we demonstrate that the winter Sr/Ca and U/Ca records of an annually-banded reef coral from the Ogasawara Islands in the western subtropical North Pacific are significantly correlated with the instrumental winter PDO index over the last century. The reconstruction of the PDO is further improved by combining the coral data with an existing eastern mid-latitude North Pacific growth ring record of geoduck clams. The spatial correlations of this combined index with global climate fields suggest that SST proxy records from these locations provide potential for PDO reconstructions further back in time. #-------------------- # Publication # Authors: Felis, T.; Suzuki, A.; Kuhnert, H.; Dima, M.; Lohmann, G.; Kawahata, H.c # Published_Date_or_Year: 2009 # Published_Title: Subtropical coral reveals abrupt early-twentieth-century freshening in the western North Pacific Ocean. # Journal_Name: Geology # Volume: 37 # Edition: # Issue: 6 # Pages: 527-530 # DOI: 10.1130/G25581A.1 # Online_Resource: # Full_Citation: Felis, T., A. Suzuki, H. Kuhnert, M. Dima, G. Lohmann, and H. Kawahata. 2009. Subtropical coral reveals abrupt early-twentieth-century freshening in the western North Pacific Ocean. Geology, Vol. 37, No. 6, pp. 527-530, June 2009. doi:10.1130/G25581A.1 # Abstract: #-------------------- # Publication # Authors: Strom, A. S.; Francis, R. C.; Mantua, N. J.; Miles, E. L.; Peterson, D. L. # Published_Date_or_Year: 2004-03-19 # Published_Title: North Pacific climate recorded in growth rings of geoduck clams: A new tool for paleoenvironmental reconstruction. # Journal_Name: Geophys. Res. Lett. # Volume: 31 # Edition: # Issue: L06206 # Pages: # DOI: doi:10.1029/2004GL019440 # Online_Resource: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/strom2004/ # Full_Citation: Strom, A.S., R.C. Francis, N.J. Mantua, E.L. Miles and D.L. Peterson. 2004. North Pacific climate recorded in growth rings of geoduck clams: A new tool for paleoenvironmental reconstruction. Geophys. Res. Lett. 31, L06206, 19 March 2004. doi:10.1029/2004GL019440 ftp://ftp.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/strom2004/ # Abstract: #------------------ # Funding_Agency # Funding_Agency_Name: Deutsche Forschungsgemeinschaft DFG Research Center # Grant: #------------------ # Funding_Agency # Funding_Agency_Name: Ministry of the Environment, Japan # Grant: #------------------ # Site_Information # Site_Name: Miyanohama (Chichijima) Reef, Ogasawara Islands, Japan # Location: Asia>Eastern Asia>Japan # Country: Japan # Northernmost_Latitude: 27.106 # Southernmost_Latitude: 27.106 # Easternmost_Longitude: 142.194 # Westernmost_Longitude: 142.194 # Elevation: -5.6 m #------------------ # Data_Collection # Collection_Name: 10japa01a # Earliest_Year: 1873 # Most_Recent_Year: 1994 # Time_Unit: AD # Core_Length: 1.74 m # Notes: All three time series were detrended and normalized to unit variance over their period of overlap (1873-1994).The November-December-January-February (NDJF) coral Sr/Ca and U/Ca time series were calculated from the bimonthly resolved coral record as the average of the corresponding November-December (ND) and January-February (JF) values. The NDJF value of a given year (e.g., 1901) includes the ND value of the preceding year (1900). #------------------ # Species # Species_Name: Porites # 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 ##Sr/Ca Strontium/Calcium, Porites, ,mmol/mol, Nov-Feb,Corals and Sclerosponges, , ,N ##U/Ca Uranium/Calcium, Porites, ,µmol/mol, Nov-Feb, Corals and Sclerosponges, , ,N ##PDO Pacific Decadal Oscillation Index, , , unitless, , Corals and Sclerosponges, , coral Sr/Ca and U/Ca and geoduck growth index,N # #---------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Values: NAN # age Sr/Ca U/Ca PDO 1873 9.145 1.215 -0.076557 1874 9.170 1.235 0.074775 1875 9.205 1.280 0.149132 1876 9.225 1.300 0.233489 1877 9.265 1.365 0.568462 1878 9.250 1.365 0.983642 1879 9.085 1.245 -0.614280 1880 9.250 1.305 -0.087019 1881 9.225 1.285 -0.057226 1882 9.325 1.355 0.209110 1883 9.255 1.350 0.081862 1884 9.200 1.330 0.432793 1885 9.185 1.305 0.006185 1886 9.255 1.335 0.300041 1887 9.070 1.225 -1.225395 1888 9.230 1.335 0.736612 1889 9.145 1.275 -0.339851 1890 8.970 1.170 -0.739643 1891 9.145 1.260 0.176557 1892 9.130 1.265 -0.282107 1893 9.185 1.310 -0.275603 1894 9.265 1.355 0.263754 1895 9.305 1.385 0.509669 1896 9.275 1.365 0.221099 1897 9.125 1.290 -0.607386 1898 9.065 1.335 -0.921370 1899 9.120 1.285 -1.190008 1900 9.110 1.270 -0.429886 1901 9.110 1.305 0.027295 1902 9.185 1.315 0.834299 1903 9.015 1.285 -0.329997 1904 9.120 1.280 -0.138381 1905 9.110 1.230 -0.111947 1906 9.075 1.275 0.110105 1907 9.265 1.345 0.786411 1908 9.235 1.335 0.808171 1909 9.125 1.295 -0.824230 1910 9.145 1.285 -1.167036 1911 9.215 1.320 -0.556730 1912 9.210 1.305 -0.353427 1913 9.165 1.275 -0.597727 1914 9.245 1.335 0.276110 1915 9.220 1.310 -0.134648 1916 9.200 1.320 -0.072154 1917 9.180 1.305 -0.141072 1918 9.210 1.325 0.121846 1919 9.170 1.295 -0.612070 1920 9.190 1.325 -0.757405 1921 9.225 1.290 -0.071225 1922 9.285 1.365 0.212613 1923 9.250 1.350 0.315997 1924 9.120 1.275 -0.693494 1925 9.175 1.305 0.458380 1926 9.205 1.335 1.247812 1927 9.250 1.370 0.709715 1928 9.225 1.340 1.008555 1929 9.210 1.315 0.742728 1930 9.040 1.260 -0.631587 1931 9.195 1.310 1.246803 1932 9.255 1.365 0.953122 1933 9.245 1.385 0.397274 1934 9.280 1.390 0.906613 1935 9.325 1.425 1.310998 1936 9.445 1.505 1.655613 1937 9.230 1.340 0.419305 1938 9.280 1.365 0.836833 1939 9.270 1.395 0.442159 1940 9.265 1.345 0.406927 1941 9.260 1.355 0.284364 1942 9.270 1.350 -0.024570 1943 9.170 1.290 -0.731795 1944 9.280 1.360 0.481250 1945 9.325 1.375 0.637651 1946 9.310 1.380 0.544871 1947 9.230 1.325 0.670848 1948 9.200 1.330 -0.028815 1949 9.220 1.315 -0.398289 1950 9.130 1.240 -0.353159 1951 9.160 1.305 -0.015809 1952 9.130 1.265 -1.250503 1953 9.090 1.245 -1.398181 1954 9.090 1.240 -1.274082 1955 9.015 1.180 -2.147671 1956 9.190 1.295 -0.489509 1957 9.135 1.250 -0.703314 1958 9.130 1.240 0.267938 1959 9.205 1.280 0.345325 1960 9.135 1.235 -0.512092 1961 9.220 1.280 0.638614 1962 9.080 1.210 -0.571182 1963 9.255 1.335 -0.058085 1964 9.150 1.255 -0.662724 1965 9.220 1.310 -0.247025 1966 9.200 1.310 -0.664523 1967 9.245 1.390 0.117015 1968 9.140 1.310 -0.264063 1969 9.175 1.305 -0.694299 1970 9.220 1.320 0.148310 1971 9.060 1.245 -1.476155 1972 9.225 1.335 -0.354180 1973 9.125 1.280 -1.277239 1974 9.035 1.220 -1.256423 1975 9.185 1.280 -0.819924 1976 9.255 1.330 -0.848661 1977 9.200 1.315 -0.539779 1978 9.140 1.285 -0.069841 1979 9.180 1.265 0.756781 1980 9.130 1.265 -0.808373 1981 9.215 1.300 -0.300744 1982 9.385 1.465 1.965684 1983 9.345 1.420 1.435290 1984 9.245 1.300 0.871502 1985 9.390 1.445 1.397026 1986 9.235 1.305 0.220601 1987 9.225 1.325 0.610312 1988 9.240 1.305 -0.124343 1989 9.355 1.395 1.185942 1990 9.235 1.370 0.021996 1991 9.095 1.260 -0.426713 1992 9.205 1.300 0.700701 1993 9.075 1.240 0.089273 1994 9.060 1.185 0.257358