Nauru Island Isotope (delta 18O, delta 13C) Data for 1891 to 1995

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Frequently anticipated questions:


What does this data set describe?

Title:
Nauru Island Isotope (delta 18O, delta 13C) Data for 1891 to 1995
Abstract:
Nauru coral stable isotope timeseries. (166E, 0.5S, 14m bottom depth). Coral stable isotope analyses on untreated, low-speed drilled samples. Precision is +/- 0.05 per mil as documented by an in-house homogenized coral standard, and presented relative to V-PDB (NBS-19 normalized). Oxygen isotope data has NOT been corrected for the acid fractionation difference ("acid-alpha") between standards (calcite) and coral samples (aragonite). Cores were taken from two ~2meter Porites corals on the north side of Nauru Island (166E 0.5S), 14m bottom depth, in July of 1995 by D. Schrag M. Moore. Nauru-1 has been identified as Porites australiensis, Nauru-2 is Porites spp. Cores were split and cleaned with distilled water. Samples were drilled using a low-speed drill along the major vertical growth axis. Nauru-1 (1.85 meters) was sampled sequentially at 1 mm increments for the upper 750 mm, and 5mm continous samples for the remainder. Nauru-2 (1.61 meters) was sampled continously at 2 mm increments. Data is presented to time. The long Nauru-1 record (Nauru WDCA pt_3) is presented as a quarterly interpolated record, the least common sampling resolution of the whole sequence.
  1. How should this data set be cited?

    Guilderson, T., and Schrag, D., 199908, Nauru Island Isotope (delta 18O, delta 13C) Data for 1891 to 1995: World Data Center for Paleoclimatology Data Contribution Series 1999-042, World Data Center for Paleoclimatology, Boulder, Boulder.

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: 166
    East_Bounding_Coordinate: 166
    North_Bounding_Coordinate: -.05
    South_Bounding_Coordinate: -.05

  3. What does it look like?

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

    Beginning_Date:
    Ending_Date: 1995
    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)

    del13C
    delta 13C (per mil) (Source: Craig, H., 1957. Isotopic standards for mass spectrometric analysis of carbon dioxide. Geochimica Cosmochimica Acta, 12:113-140; Fairbanks, R.G., and R.E. Dodge, Annual periodicity of the O-18/O-16 and C-13/C-12 ratios in the coral Montastrea annularis, Geochimica et Cosmochimica Acta, 43, 1979.)

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

    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?

  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 erro

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 01-Apr-2011
Last Reviewed: 01-Apr-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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