nav2002 - Navigation Tracklines of the Puerto Rico Trench Cruise 02051 (NOAA 0208) September 24 to September 30, 2002.

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Frequently-anticipated questions:

What does this data set describe?

Title:
nav2002 - Navigation Tracklines of the Puerto Rico Trench Cruise 02051 (NOAA 0208) September 24 to September 30, 2002.
Abstract:
The Puerto Rico trench is a tectonic plate boundary where the North American plate slides by and descends under the Caribbean plate. Although much of the trench lies within the U.S. EEZ, surprisingly few surveys have been conducted there during the past 25 years. This data set shows the tracklines (navigation path) of the U.S. Geological Survey science cruise that was conducted in the year 2002.
  1. How should this data set be cited?

    U.S. Geological Survey (USGS), and National Oceanic and Atmospheric Administration (NOAA), 2004, nav2002 - Navigation Tracklines of the Puerto Rico Trench Cruise 02051 (NOAA 0208) September 24 to September 30, 2002.: Open-File Report 2004-1400, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.

    Online Links:

    This is part of the following larger work.

    Brink, Uri ten , Danforth, William, Parker, Castle Eugene , Uozumi, Toshi, and Williams, Glynn, 2004, Project PROBE Leg II - Final Report and Archive of Swath Bathymetric Sonar, CTD/XBT and GPS Navigation Data Collected During USGS Cruise 03008 (NOAA Cruise RB0303) Puerto Rico Trench 18 February - 7 March, 2003: Open-file Report 2004-1400, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -67.663667
    East_Bounding_Coordinate: -65.554208
    North_Bounding_Coordinate: 20.187423
    South_Bounding_Coordinate: 18.996090

  3. What does it look like?

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

    Beginning_Date: 24-Sep-2002
    Ending_Date: 30-Sep-2002
    Currentness_Reference: ground condition

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

    Geospatial_Data_Presentation_Form: vector digital data

  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):

      • String (80)

    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 D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257224.

      Vertical_Coordinate_System_Definition:
      Altitude_System_Definition:
      Altitude_Datum_Name: assumed sea level
      Altitude_Resolution: 1
      Altitude_Distance_Units: two-way travel time (meters)
      Altitude_Encoding_Method: Attribute values
      Depth_System_Definition:

  7. How does the data set describe geographic features?

    nav2002
    Shapefile Attribute Table (Source: ESRI)

    FID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    ID
    A unique character string or numeric value associated with a particular object. (Source: ESRI)

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?

    U.S. Geological Survey
    c/o Chris Polloni
    Information Specialist
    384 Woods Hole Road
    Woods Hole Road, Massachusetts 02543-2310
    USA

    (508) 548-8700.x2280 (voice)
    (508) 457-2310 (FAX)
    cpolloni@usgs.gov

    Hours_of_Service: 8:00AM to 5:00PM; M- F

Why was the data set created?

To show the navigation path used during the USGS and NOAA science cruise of the Puerto Rico trench area.

How was the data set created?

  1. From what previous works were the data drawn?

    (source 1 of 1)
    , Unpublished Material.

    Type_of_Source_Media: disc

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

    Date: 2004 (process 1 of 3)
    The navigation was received from the R/V Ron Brown GPS network during USGS cruise RONB02051 (NOAA RB0208), sent directly to the central storage system and logged each day to a spreadsheet file that was archived to a CD-ROM.

    Person who carried out this activity:

    Chris Polloni
    U.S. Geological Survey
    Information Specialist
    384 Woods Hole Road
    Woods Hole, Massachusetts 02543-1589
    USA

    (508) 548-8700 x2280 (voice)
    (508) 457-2310 (FAX)
    cpolloni@usgs.gov

    Hours_of_Service: 8AM to 5PM; M-F
    Date: 2004 (process 2 of 3)
    The navigation spreadsheet file was reformatted as table input file for ArcView.

    Person who carried out this activity:

    Chris Polloni
    U.S. Geological Survey
    Info Specialist
    384 Woods Hole Road
    Woods Hole, Massachusetts 02543-1589
    USA

    508-457-2280 (voice)
    (508) 457-2310 (FAX)
    cpolloni@usgs.gov

    Date: 2004 (process 3 of 3)
    Navigation table file saved as trackline shapefile. ArcView 3.3 used to process shapefile.

    Person who carried out this activity:

    Chris Polloni
    U.S. Geological Survey
    Info Specialist
    384 Woods Hole Road
    Woods Hole, Massachusetts 02543-1589
    USA

    508-457-2280 (voice)
    (508) 457-2310 (FAX)
    cpolloni@usgs.gov

  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?

  2. How accurate are the geographic locations?

  3. How accurate are the heights or depths?

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

    complete

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

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:
Public domain data from the U.S. government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey and National Oceanic and Atmospheric Administration as the source of this information.

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

    Uri ten Brink
    U.S. Geological Survey
    Research Scientist
    384 Woods Hole Road
    Woods Hole, Massachusetts 02543-1598
    USA

    (508) 548-8700 x2396 (voice)
    (508) 457-2310 (FAX)
    utenbrink@usgs.gov

    Hours_of_Service: 8:00AM to 5:00PM; M-F
  2. What's the catalog number I need to order this data set?

    Downloadable Data: Open-File Report 2004-1400 - nav2002

  3. What legal disclaimers am I supposed to read?

  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 02-Nov-2004
Metadata author:
U.S. Geological Survey
c/o Glynn Williams
Spatial Data Technician
384 Woods Hole Road
Woods Hole, Massachusetts 02543-1598
USA

(508) 548-8700 x2290 (voice)
(508) 457-2310 (FAX)
gwilliams@usgs.gov

Hours_of_Service: 8:00AM to 5:00PM; M - F
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:

Generated by mp version 2.8.18 on Fri Dec 17 16:13:53 2004