Urvina Bay Stable Isotope (delta 18O) Data for 1600 to 1992

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Frequently anticipated questions:


What does this data set describe?

Title: Urvina Bay Stable Isotope (delta 18O) Data for 1600 to 1992
Abstract:
A. URVCOMP.TXT Site: Urvina Bay, Galapagos Islands, 00 deg 24.52 min S, 91 deg 14.04 min 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.
  1. How should this data set be cited?

    Dunbar, R., 199508, Urvina Bay Stable Isotope (delta 18O) Data for 1600 to 1992: World Data Center for Paleoclimatology Data Contribution Series 1994-013, World Data Center for Paleoclimatology, Boulder, Boulder.

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -91.23
    East_Bounding_Coordinate: -91.23
    North_Bounding_Coordinate: -0.41
    South_Bounding_Coordinate: -0.41

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Beginning_Date:
    Ending_Date: 1992
    Currentness_Reference: Publication Date

  5. What is the general form of this data set?

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

    2. What coordinate system is used to represent geographic features?

  7. How does the data set describe geographic features?

    coral variable
    coral variable (Source: coral variable)

    del18O
    delta 18O (per mil) relative to PDB (Source: Craig, H., 1957. Isotopic standards for mass spectrometric analysis of carbon dioxide. Geochimica Cosmochimica Acta, 12:113-140)

    Range of values
    Minimum:unknown
    Maximum:unknown
    Units:per mil
    Resolution:0.01


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    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.

  3. To whom should users address questions about the data?


Why was the data set created?

Paleoclimatic Research


How was the data set created?

  1. From what previous works were the data drawn?

  2. How were the data generated, processed, and modified?

  3. What similar or related data should the user be aware of?


How reliable are the data; what problems remain in the data set?


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: None
Use_Constraints: Please cite original reference when using this data.

  1. Who distributes the data set? (Distributor 1 of 1)

    NOAA Paleoclimatology Program
    Data Manager
    325 Broadway, Code E/CC23
    Boulder, Colorado 80305-3328
    U.S.A.

    (303) 497-6280 (voice)
    (303) 497-6513 (FAX)
    paleo@noaa.gov

    Hours_of_Service: 9-5 MST Monday-Friday
  2. What's the catalog number I need to order this data set?

    Other Documents

  3. What legal disclaimers am I supposed to read?

    Disclaimer- While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 31-Mar-2011
Last Reviewed: 31-Mar-2011
Metadata author:
NOAA Paleoclimatology Program
Data Manager
325 Broadway, Code E/CC23
Boulder, Colorado 80305-3328
U.S.A.

(303) 497-6280 (voice)
(303) 497-6513 (FAX)
paleo@noaa.gov

Hours_of_Service: 9-5 MST Monday-Friday
Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)


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