Cruise report: USGS cruise F2-92 Central and Southern California margin: Paleoceanography of the California current.

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

Frequently-anticipated questions:

What does this data set describe?

Cruise report: USGS cruise F2-92 Central and Southern California margin: Paleoceanography of the California current.
Abstract: No formal abstract is given.
Data digitized in 2000-2005 for inclusion into usSEABED (<>)
  1. How should this data set be cited?

    Gardner, James V. , Dean, Walter E. , and Kayen, Robert, 1992, Cruise report: USGS cruise F2-92 Central and Southern California margin: Paleoceanography of the California current.: Open-file report 92-342, U.S. Geological Survey, Menlo Park, CA.

    Online Links:

    Data from USGS cruise F292SC (<>).

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -125.40717
    East_Bounding_Coordinate: -118.66700
    North_Bounding_Coordinate: 35.82583
    South_Bounding_Coordinate: 32.12967

  3. What does it look like?

    OFR_92_342 (JPG)
    Screen grab of GIS-produced sample distribution, with bathymetry and land for reference.

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

    Beginning_Date: 11-Mar-1992
    Ending_Date: 30-Mar-1992
    Currentness_Reference: Publication date

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

    Geospatial_Data_Presentation_Form: 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 (61)

    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 0.00001. Longitudes are given to the nearest 0.00001. Latitude and longitude values are specified in Decimal degrees.

  7. How does the data set describe geographic features?

    SDTS point (Source: Source report)

    Sample number
    Sample number (Source: US Geological Survey)

    Alpha numeric number based on cruise and core information

    Water depth
    Depth of water at sample site (Source: Source report)

    Range of values

    Lithology (Source: Source report)

    Lithologic description of core, including color

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?

    The authors and others at the USGS for collection and analysis of data. For usSEABED, digitization and formatting: K. Halimeda Kilbourne and Jane Reid (USGS); Formatting corrections: Jane Reid (USGS) and Chris Jenkins (University of Colorado)

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

    U.S. Geological Survey
    c/o Walter E. Dean
    USGS Coastal and Marine Geology
    Menlo Park, CA 94025

    650-329-5270 (voice)

Why was the data set created?

"The principle [sic] objective of the cruise was to collect a suite of piston cores across the California Current with records of at least the last 150 ka so that the temporal history of the current can be investigated. A second objective was to locate and core pelagic-carbonate sediments above the presumed 3000-m depth of the calcite lysocline on seamounts off the California margin to capture the uncontaminated (by terrestrial components)oceanic signal."

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: 1991 (process 1 of 1)
    Please see the report for a detailed description of the core processing.

    Person who carried out this activity:

    U.S. Geological Survey
    c/o Michael Torresan
    USGS Coastal and Marine Geology
    Menlo Park, CA 94025

    650-329-5493 (voice)

    Data sources produced in this process:
    • OFR_92_342

  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?

    No estimate made for the accuracy of the data in the original report. Data digitized by the USGS and partners were visually compared to the source data, and corrected. Where appropriate, data were tested for completeness using MS Excel. Locations checked using GIS.

  2. How accurate are the geographic locations?

    Navigation probably mostly by GPS.

  3. How accurate are the heights or depths?

    Water depth determination by 3.5 kHz profiling systems. Subsample depths given as nearest centimeter.

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

    No estimate made for original data. For inclusion into usSEABED, all descriptive data in the report were included.

  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?

None. Paper copy of report is available through the USGS, and is also available online.
Use_Constraints: Cite the U.S. Geological Survey as the originators of the data.

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

    United States Geological Survey
    USGS Information Services
    Denver, CO 80225

    1-800-ASK-USGS (voice)

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

    Open file report 92-342

  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 and limitations of the statistical data.

  4. How can I download or order the data?

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

    Plug-in not required, but best viewed with downloadable program DjVu at <>

Who wrote the metadata?

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

831-427-4727 (voice)

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

Generated by mp version 2.8.17 on Sat May 20 22:15:48 2006