A summary of sound velocities, engineering properties, sediment size, and composition analyses of cores and grabs for ASW/USW

Metadata also available as - [Outline] - [Parseable text]

Frequently-anticipated questions:


What does this data set describe?

Title:
A summary of sound velocities, engineering properties, sediment size, and composition analyses of cores and grabs for ASW/USW
Abstract: No abstract is given.
Supplemental_Information:
Latitudes and longitudes are incorrectly calculated in the digital data available through NGDC. Derived Deck 41 descriptions are decommissioned in usSEABED.
  1. How should this data set be cited?

    U.S. Naval Oceanographic Office (NavOceanO), Achstetter, E.V., Hill, D.S., Williams, V.L., Knoop, J.W., and Whitney, S.G., 1967, A summary of sound velocities, engineering properties, sediment size, and composition analyses of cores and grabs for ASW/USW: Lab Item 320, U.S. Naval Oceanographic Office, Washington D.C. 20390.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -67.10
    East_Bounding_Coordinate: -65.15
    North_Bounding_Coordinate: 17.93
    South_Bounding_Coordinate: 16.85

  3. What does it look like?

    MGG09065007.jpg (jpg)
    Screen grab view of locations with coastline for reference

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

    Beginning_Date: 19670407
    Ending_Date: 19670416
    Currentness_Reference: Publication date

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

    Geospatial_Data_Presentation_Form: Digital and Paper

  6. How does the data set represent geographic features?

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

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • Point (149)

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

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.1. Longitudes are given to the nearest 0.1. Latitude and longitude values are specified in Decimal degrees.

  7. How does the data set describe geographic features?

    Entity_and_Attribute_Overview:
    Data include sampler, subsample location (downcore), color (Munsell code), carbonate, and organic carbon percents, percents of gravel, sand, silt, clay, moment mean, standard deviation, skewness, kurtosis of grain-size distribution, and granulometric analyses in one-phi increments.
    Entity_and_Attribute_Detail_Citation: Source report


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?

    For inclusion into usSEABED: Digitization, formatting, and corrections: Jane Reid (USGS) and Chris Jenkins (University of Colorado)

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

    National Geophysical Data Center (NGDC)
    c/o Robin R. Warnken
    E/GC3 325 Broadway
    Boulder, CO 80305-3328

    303-497-6338 (voice)
    Robin.R.Warnken@noaa.gov


Why was the data set created?

No purpose is given.


How was the data set created?

  1. From what previous works were the data drawn?

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

    Date: 1967 (process 1 of 1)
    No process information given in report.

    Person who carried out this activity:

    U.S. Naval Oceanographic Office
    Washington, D.C. 20390

    Unknown (voice)

    Data sources produced in this process:
    • LI 320

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


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

  1. How well have the observations been checked?

    For usSEABED, the digital data and scanned report were downloaded via the web, visually compared to source and corrected. Where appropriate, data were tested for completeness using MS Excel.

  2. How accurate are the geographic locations?

    Navigational techniques not recorded in report; latitudes and longitudes given to degrees, minutes.

  3. How accurate are the heights or depths?

    Water depth determination technique not noted in report. Water depths given in meters.

  4. Where are the gaps in the data? What is missing?

    All available textural, statistical data are included in usSEABED. Additional data (carbonate, organic carbon percents; Munsell color) were digitized by the USGS for inclusion into usSEABED. Geophysical data were not digitized.

  5. How consistent are the relationships among the observations, including topology?

    Data fall within normal ranges for the given parameters.


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:
Cite U.S. Naval Oceanographic Office and NGDC as originators of the data

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

    National Geophysical Data Center (NGDC)
    c/o Robin R. Warnken
    E/GC3 325 Broadway
    Boulder, CO 80305-3328

    303-497-6338 (voice)
    Robin.R.Warnken@noaa.gov

  2. What's the catalog number I need to order this data set?

    MGGID 09065007

  3. What legal disclaimers am I supposed to read?

    Although this dataset has been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data. Users of the data should be aware of limitations of the data due to possible imprecision due to navigational inaccuracies, limitations of the statistical data, and digitizing errors.

  4. How can I download or order the data?

  5. What hardware or software do I need in order to use the data set?

    web browser and internet access preferred


Who wrote the metadata?

Dates:
Last modified: 2005
Metadata author:
U.S. Geological Survey
c/o Jane A. Reid
Geologist
400 Natural Bridges Drive
Santa Cruz, CA 95060

831-427-4727 (voice)
jareid@usgs.gov

Contact_Instructions: Email preferred
Metadata standard:
CSDGM Version 2 (FGDC-STD-001-1998)


Generated by mp version 2.8.24 on Mon Mar 27 19:55:34 2006