Dunbar, R. 1995/08 World Data Center for Paleoclimatology Data Contribution Series 1994-013 Boulder World Data Center for Paleoclimatology, Boulder A. URVCOMP.TXT Site: Urvina Bay, Galapagos Islands, 00 deg 24.52' S, 91 deg. 14.04'W. Oxygen Isotopic time series averaged from 2 cores-UR-86 (Pavona clavus, 1607-1953) and UR-87 (Pavona gigantea, 1962-1981). This data was used to construct figure 8 in the original reference. Years with no value are years for which no coral sample was available for analysis. Both samples are expressed in units of parts per mil relative to the PDB standard. To construct a working composite of the two data sets, a correction must be made for the species-specific offset between P. Clavus and P. Gigantea. Based on our studies in Galapagos (e.g., Fig 6 in Dunbar, et al, 1994) and multiple sites in the eastern Pacific (Wellington and Dunbar, Coral Reefs, in press), P. Clavus produces aragonite about 0.40 parts per mil enriched in O-18 relative to P. Gigantea. This amount has been added to the UR-87 PDB values to produce Figure 8 in Dunbar, et al, 1994. B. URV87.DAT This data was used to construct Figure 5 in the annual reference, a sub-annual oxygen isotopic time-series spanning the period 1961-1982. The data are sub-annual del O-18 values, given in parts per mil relative to the PDB standard, from a colony of Pavona gigantea. The coral was drilled at roughly millimeter intervals; the first columns of file URV87.DAT give the distance of the top and bottom of the sample interval from the base of the colony. The column labeled Year is the inferred calendar period of growth for each interval. Paleoclimatic Research G2073 National Geophysical Data Center http://www.ngdc.noaa.gov/paleo/corals.html 1 1600 1992 Publication Date Complete None Planned -91.23 -91.23 -0.41 -0.41 CoRIS Theme Keywords Version 1.0 EARTH SCIENCE > Paleoclimate > Coral Records > delta 18O Numeric Data Sets > Paleoclimatology CoRIS Place Keywords Version 1.0 OCEAN BASIN > Pacific Ocean > Eastern Pacific Ocean > Isabela Island > Urvina Bay (00S091W0001) COUNTRY/TERRITORY > Ecuador > Galapagos Islands > Urvina Bay (00S091W0001) CoRIS Temporal Keywords Version 1.0 Holocene, Modern None Please cite original reference when using this data. Dunbar, R.B. Wellington, G.M., Colgan, M.W., and Glynn, P.W., 1994, Eastern Pacific Sea Surface Temperature since 1600 A.D.: The d18O Record of Climate Variability in Galapagos Corals, Paleoceanography, v.9, 291-315. coral variable coral variable coral variable del18O delta 18O (per mil) relative to PDB Craig, H., 1957. Isotopic standards for mass spectrometric analysis of carbon dioxide. Geochimica Cosmochimica Acta, 12:113-140 unknown unknown per mil 0.01 NOAA Paleoclimatology Program Bruce Bauer Data Manager Mailing Address

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Boulder Colorado 80305-3328 United States (303) 497-6160 (303) 497-6958 carissa.l.carter@noaa.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 No Constraints No Constraints 3850 162 1000000161 20011113 20011218