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What does this data set describe?

Title:
Coring data of field activity 08008 (J-1-08-PR) in Mona Canyon, Puerto Rico Trench, Puerto Rico, the Virgin Islands, Virgin Islands Basin, and Whiting Basin, United States, northeast Caribbean, North Atlantic from 03/16/2008 to 03/24/2008
Abstract:
United States Geological Survey, Woods Hole, Massachusetts. Chief Scientists: Jason Chaytor, Uri ten Brink. Coring data (Giant Gravity Corer, 3.5 kHz echosounder) of field activity 08008 (J-1-08-PR) in Mona Canyon, Puerto Rico Trench, Puerto Rico, the Virgin Islands, Virgin Islands Basin, and Whiting Basin, United States, northeast Caribbean, North Atlantic from 03/16/2008 to 03/24/2008, <http://walrus.wr.usgs.gov/infobank/j/j108pr/html/j-1-08-pr.meta.html>.
Supplemental_Information:

Equipment Used -
Giant Gravity Corer WHOI
3.5 kHz echosounder
Notes -
Navigation technique: DGPS.<br>
9 days at sea.
40 stations occupied.
The objective of this coring cruise is to determine the age
of several significant slope failures and seismite layers around
Puerto Rico in an effort to constrain the temporal distribution of
large slope failures and earthquakes. Large landslide and
earthquake events in close proximity to Puerto Rico and the U.S.
Virgin Islands are believed to have triggered numerous tsunami,
which have caused significant damage to coastal communities in the
region. By better constraining the temporal occurrence of such
large tsunami source mechanisms, we hope to gain a better
understanding of the recurrence interval and size of future
landslides, thereby providing valuable input into tsunami hazard
models for the region. This project is a collaborative effort
between WHOI and the USGS Woods Hole Science Center. In order to do
this, we aim to collect 30-40 cores from offshore Puerto Rico (Mona
Canyon, north slope and Puerto Rico trench, and the Virgin Island
and Whiting Basins) that intersect landslide or seismite deposits so
as to be able to date the penultimate and potentially older
landslide and/or earthquake events.
Publications -
Chaytor, Jason, and ten Brink, Uri, 2008, Gravity Coring Offshore Puerto Rico
and the U.S. Virgin Islands to Investigate the Timing of Submarine Landslides
and Large Earthquakes, USGS Sound Waves, July 2008, available on line at:
<A HREF ="<http://soundwaves.usgs.gov/2008/07/fieldwork3.html>" target = "SW"><http://soundwaves.usgs.gov/2008/07/fieldwork3.html>

Similar information is available for thousands of other USGS/CMG-related Activities.
If known, available are Activity-specific navigation, gravity, magnetics, bathymetry, seismic, and sampling data; track maps; and equipment information; as well as summary overviews, crew lists, and information about analog materials.
If available, access to physical samples is described in the "WR CMG Sample Distribution Policy" at: <http://walrus.wr.usgs.gov/infobank/programs/html/main/sample-dist-policy.html>
Primary access to the USGS/CMG Information Bank's digital data, analog data, and metadata is provided through... <http://walrus.wr.usgs.gov/infobank/>
This page accomodates a variety of search approaches (e.g., by platform, by region, by scientist, by equipment type, etc.).
  1. How should this data set be cited?

    U.S. Geological Survey (USGS) <http://www.usgs.gov/>, Coastal and Marine Geology Program (CMGP) <http://marine.usgs.gov/>, 20130424, Coring data of field activity 08008 (J-1-08-PR) in Mona Canyon, Puerto Rico Trench, Puerto Rico, the Virgin Islands, Virgin Islands Basin, and Whiting Basin, United States, northeast Caribbean, North Atlantic from 03/16/2008 to 03/24/2008: U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>, Menlo Park, CA.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -68.75000
    East_Bounding_Coordinate: -63.25000
    North_Bounding_Coordinate: 20.75000
    South_Bounding_Coordinate: 16.85000

  3. What does it look like?

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

    Beginning_Date: 16-Mar-2008
    Ending_Date: 24-Mar-2008
    Currentness_Reference: ground condition

  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?

      Indirect_Spatial_Reference:
      Mona Canyon, Puerto Rico Trench, Puerto Rico, the Virgin Islands, Virgin Islands Basin, and Whiting Basin, United States, northeast Caribbean, North Atlantic
      This is a Point data set. It contains the following vector data types (SDTS terminology):
      • Point

    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.

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.
      The flattening of the ellipsoid used is 1/298.257.

      Vertical_Coordinate_System_Definition:
      Depth_System_Definition:
      Depth_Datum_Name: Local surface
      Depth_Resolution: 0.1
      Depth_Distance_Units: meters
      Depth_Encoding_Method: Attribute values


  7. How does the data set describe geographic features?

    Entity_and_Attribute_Overview:
    Navigation with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/nav.html>

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?

    Jason Chaytor (Chief Scientist); Uri ten Brink (Chief Scientist); Jason Chaytor); Uri ten Brink); Matthew Arsenault); Sandy Baldwin); Brian Buczkowski); Mike Casso); Claudia Flores); Kate McMullen); Emily Himmelstoss); Jim Broda (WHOI, Coring Technician); George Gunther)

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

    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

Why was the data set created?

These data and information are intended for science researchers, students from elementary through college, policy makers, and general public.

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: 13-Jan-2011 (process 1 of 1)
    Navigation Data Unknown

    Person who carried out this activity:

    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

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

    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>, Unknown, USGS/CMG Information Bank <http://walrus.wr.usgs.gov/infobank/>: U.S. Geological Survey (USGS) <http://www.usgs.gov> Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>, Menlo Park, CA.

    Online Links:

    Other_Citation_Details:
    Chaytor, Jason, and ten Brink, Uri, 2008, Gravity Coring Offshore Puerto Rico and the U.S. Virgin Islands to Investigate the Timing of Submarine Landslides and Large Earthquakes, USGS Sound Waves, July 2008, available on line at: <A HREF ="<http://soundwaves.usgs.gov/2008/07/fieldwork3.html>" target = "SW"><http://soundwaves.usgs.gov/2008/07/fieldwork3.html>


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

  1. How well have the observations been checked?

    Identified as best available version.

  2. How accurate are the geographic locations?

    Unspecified

  3. How accurate are the heights or depths?

    Unspecified

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

    Start and end date/times of data 

    Navigation Data (j-1-08-pr.050 [SINS])
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
200801010101000    200801010101000
200801020101000    200801020101000
200801030101000    200801030101000
200801040101000    200801040101000
200801050101000    200801050101000
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST

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

    Unspecified

How can someone get a copy of the data set?

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

Access_Constraints:
Physical materials are under controlled on-site access.
If available, access to physical samples is described in the "WR CMG Sample Distribution Policy" at: <http://walrus.wr.usgs.gov/infobank/programs/html/main/sample-dist-policy.html>
Use_Constraints:
Please recognize the U.S. Geological Survey (USGS) as the source of this information.
Physical materials are under controlled on-site access.
Some USGS information accessed through this means may be preliminary in nature and presented without the approval of the Director of the USGS. This information is provided with the understanding that it is not guaranteed to be correct or complete and conclusions drawn from such information are the responsibility of the user.
This information is not intended for navigational purposes.
Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

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

    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

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

    Downloadable Data 08008 (J-1-08-PR) data set <http://walrus.wr.usgs.gov/infobank/j/j108pr/html/j-1-08-pr.meta.html>

  3. What legal disclaimers am I supposed to read?

    Please recognize the U.S. Geological Survey (USGS) as the source of this information.
    Physical materials are under controlled on-site access.
    Some USGS information accessed through this means may be preliminary in nature and presented without the approval of the Director of the USGS. This information is provided with the understanding that it is not guaranteed to be correct or complete and conclusions drawn from such information are the responsibility of the user.
    This information is not intended for navigational purposes.
    Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

  4. How can I download or order the data?

    • Availability in digital form:

Data format: ASCII Size: 0.1
Network links: <http://walrus.wr.usgs.gov/infobank/j/j108pr/html/j-1-08-pr.nav.html>

  • Cost to order the data: None

    • Who wrote the metadata?

    Dates:
    Last modified: 24-Apr-2013
    Metadata author:
    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

    Metadata standard:
    FGDC Content Standards for Digital Geospatial Metadata <http://www.fgdc.gov/> (FGDC-STD-001-1998 <http://www.its.nbs.gov/nbs/meta/meta.html>)

    Generated by mp version 2.9.13 on Wed Apr 24 16:33:00 2013