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What does this data set describe?

Title:
Geophysical data of field activity P-4-83-AT in Atlantic Ocean from 07/12/1983 to 07/27/1983
Abstract:
Chief Scientist: Byron Ruppel. Geophysical data (bathymetry, gravity) of field activity P-4-83-AT in Atlantic Ocean from 07/12/1983 to 07/27/1983, <http://walrus.wr.usgs.gov/infobank/p/p483at/html/p-4-83-at.meta.html>.
Supplemental_Information:

Equipment Used -
bathymetry
gravity

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/>, 20131029, Geophysical data of field activity P-4-83-AT in Atlantic Ocean from 07/12/1983 to 07/27/1983: 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: -81.41025
    East_Bounding_Coordinate: -80.62843
    North_Bounding_Coordinate: 31.78750
    South_Bounding_Coordinate: 29.11602

  3. What does it look like?

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

    Beginning_Date: 12-Jul-1983
    Ending_Date: 27-Jul-1983
    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: Atlantic Ocean
      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 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.4.
      The flattening of the ellipsoid used is 1/294.98.

      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:
    Bathymetry with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/bath.html>
    Entity_and_Attribute_Overview:
    Gravity with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/grav.html>
    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?

    Byron Ruppel (Chief Scientist, USGS Western Region)

  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: 22-Jan-1996 (process 1 of 3)
    Navigation Data
    Converted to time format with year at start.
    
    02/25/86 BARB DUA0:[DATA.P283AT.N]P483AT.072;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    
    

    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>

    Date: 28-Oct-2008 (process 2 of 3)
    Gravity Data
    10/28/2008 carolyn p-4-83-at.151_072
    /infobank/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    02/27/86 BARB DUA0:[DATA.P283AT.G]P483ATM26.151;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    
    Input was...
    Converted to time format with year at start.
    
    02/25/86 BARB DUA0:[DATA.P283AT.N]P483AT.072;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    
    time, lat, long, time(sec) to nearest nav fix, data values
    

    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>

    Date: 31-Oct-1998 (process 3 of 3)
    Bathymetry Data
    10/31/1998  /tiger/p/p483at/bath/p-4-83-at.330_072
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    02/27/86 BARB DUA0:[DATA.P283AT.G]P483AT.330;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    
    Input was...
    Converted to time format with year at start.
    
    02/25/86 BARB DUA0:[DATA.P283AT.N]P483AT.072;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    
    time, lat, long, time(sec) to nearest nav fix, data values
    

    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:


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 (p-4-83-at.072)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198307121917320    198307130149160
    198307130233030    198307132301570
    198307132308240    198307150252430
    198307150323030    198307152123030
    198307152154350    198307160716580
    198307160722380    198307171229480
    198307190125130    198307190437030
    198307190640010    198307191259530
    198307191340320    198307192249080
    198307192329510    198307201127330
    198307201150150    198307211201020
    198307211402590    198307212109470
    198307221054360    198307221717090
    198307221722400    198307222111090
    198307222140340    198307231614210
    198307231622430    198307240233440
    198307240301250    198307240751340
    198307240758330    198307240801570
    198307240850380    198307241645320
    198307241652010    198307251742150
    198307251824150    198307261328590
    198307261719100    198307261915040
    198307261921570    198307262203050
    198307262225490    198307270244110
    198307270258440    198307271335320
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (p-4-83-at.151_072)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198307121925480    198307171233000
    198307190000200    198307212113000
    198307220000200    198307252256000
    198307260000200    198307271335200
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (p-4-83-at.330_072)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198307121926400    198307160608200
    198307160614000    198307171229000
    198307190000200    198307190024000
    198307190035400    198307212109400
    198307220000400    198307250641000
    198307250701400    198307251158420
    198307251215200    198307252255200
    198307260001400    198307261332400
    198307261710200    198307270701400
    198307270727400    198307271128400
    198307271207400    198307271334000
    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 P-4-83-AT data set <http://walrus.wr.usgs.gov/infobank/p/p483at/html/p-4-83-at.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: 3.4
Network links: <http://walrus.wr.usgs.gov/infobank/p/p483at/html/p-4-83-at.nav.html>

Data format: ASCII Size: 4.7
Network links: <http://walrus.wr.usgs.gov/infobank/p/p483at/html/p-4-83-at.grav.html>

Data format: ASCII Size: 3.5
Network links: <http://walrus.wr.usgs.gov/infobank/p/p483at/html/p-4-83-at.bath.html>

  • Cost to order the data: None


  • Who wrote the metadata?

    Dates:
    Last modified: 29-Oct-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 Tue Oct 29 14:50:33 2013