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What does this data set describe?

Title:
Geophysical data of field activity P-35-68-WG in Western Gulf of Alaska from 05/06/1968 to 05/08/1968
Abstract:
Geophysical data (bathymetry, magnetics) of field activity P-35-68-WG in Western Gulf of Alaska from 05/06/1968 to 05/08/1968, <http://walrus.wr.usgs.gov/infobank/p/p3568wg/html/p-35-68-wg.meta.html>.
Supplemental_Information:

Equipment Used -
bathymetry
magnetics magnetometer

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-35-68-WG in Western Gulf of Alaska from 05/06/1968 to 05/08/1968: 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: -154.94341
    East_Bounding_Coordinate: -149.99159
    North_Bounding_Coordinate: 57.18830
    South_Bounding_Coordinate: 53.03000

  3. What does it look like?

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

    Beginning_Date: 06-May-1968
    Ending_Date: 08-May-1968
    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: Western Gulf of Alaska
      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:
    Magnetics with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/mag.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?

  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.
    
    08/01/86 BECKIE DUA0:[DATA.MSC]P3568WG050.FIX;
    DRB0:[DRS.TIME]TIMEFIX.EXE;
    
    Input was...
    05/03/86 CLINT DUA0:[DATA.P3568]P3568WG.050;
    DRB0:[CLINT]80COL.EXE;
    
    

    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: 20-Jun-2012 (process 2 of 3)
    Magnetics Data
    06/20/2012 carolyn p-35-68-wg.220_050
    
    Reprocessed using subroutines from Susan Macmillan's
    IGRF SYNTHESIS PROGRAM <http://www.ngdc.noaa.gov/IAGA/vmod/igrf11.f>
    with IGRF-11 coeffiecients integrated into the source code.
    /infobank/programs/mag/magred11/magred11.for
    Using geodetic coordinate system (Earth shape approximated by spheriod)
    with altitude 0.0 km (for sea level).
    
    Input was...
    10/31/1998  /tiger/p/p3568wg/mag/p-35-68-wg.200_050
    /bear/programs/edit/automerge/automerge
    
    Converted to time format with year at start.
    
    05/03/86 CLINT DUA0:[DATA.P3568]P3568WG.200;
    DRB0:[CLINT]80COL.EXE;
    
    Converted to time format with year at start.
    
    08/01/86 BECKIE DUA0:[DATA.MSC]P3568WG050.FIX;
    DRB0:[DRS.TIME]TIMEFIX.EXE;
    
    05/03/86 CLINT DUA0:[DATA.P3568]P3568WG.050;
    DRB0:[CLINT]80COL.EXE;
    
    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/p3568wg/bath/p-35-68-wg.300_050
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    05/03/86 CLINT DUA0:[DATA.P3568]P3568WG.300;
    DRB0:[CLINT]80COL.EXE;
    
    Input was...
    Converted to time format with year at start.
    
    08/01/86 BECKIE DUA0:[DATA.MSC]P3568WG050.FIX;
    DRB0:[DRS.TIME]TIMEFIX.EXE;
    
    05/03/86 CLINT DUA0:[DATA.P3568]P3568WG.050;
    DRB0:[CLINT]80COL.EXE;
    
    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-35-68-wg.050 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    196805061640000    196805080130000
    196805080140000    196805080140000
    196805080150000    196805080150000
    196805080200000    196805080200000
    196805080240000    196805080240000
    196805080250000    196805080250000
    196805080300000    196805080300000
    196805080310000    196805080310000
    196805080320000    196805080320000
    196805080330000    196805080330000
    196805080340000    196805080340000
    196805080350000    196805080350000
    196805080400000    196805080400000
    196805080410000    196805080410000
    196805080420000    196805080420000
    196805080430000    196805080430000
    196805080440000    196805080440000
    196805080450000    196805080450000
    196805080500000    196805080500000
    196805080510000    196805080510000
    196805080520000    196805080520000
    196805080530000    196805080530000
    196805080540000    196805080540000
    196805080550000    196805080550000
    196805080640000    196805080640000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Magnetics Data (p-35-68-wg.220_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    196805061640000    196805070045000
    196805071125000    196805080055000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (p-35-68-wg.300_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    196805061640000    196805062030000
    196805062040000    196805062355000
    196805070005000    196805070620000
    196805070630000    196805070755000
    196805070810000    196805072030000
    196805072040000    196805072355000
    196805080005000    196805080130000
    196805080140000    196805080140000
    196805080150000    196805080150000
    196805080200000    196805080200000
    196805080240000    196805080240000
    196805080250000    196805080250000
    196805080300000    196805080300000
    196805080310000    196805080310000
    196805080320000    196805080320000
    196805080330000    196805080330000
    196805080340000    196805080340000
    196805080350000    196805080350000
    196805080400000    196805080400000
    196805080410000    196805080410000
    196805080420000    196805080420000
    196805080430000    196805080430000
    196805080440000    196805080440000
    196805080450000    196805080450000
    196805080500000    196805080500000
    196805080510000    196805080510000
    196805080520000    196805080520000
    196805080530000    196805080530000
    196805080540000    196805080540000
    196805080550000    196805080550000
    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-35-68-WG data set <http://walrus.wr.usgs.gov/infobank/p/p3568wg/html/p-35-68-wg.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: 0.0
Network links: <http://walrus.wr.usgs.gov/infobank/p/p3568wg/html/p-35-68-wg.nav.html>

Data format: ASCII Size: 0.0
Network links: <http://walrus.wr.usgs.gov/infobank/p/p3568wg/html/p-35-68-wg.mag.html>

Data format: ASCII Size: 0.0
Network links: <http://walrus.wr.usgs.gov/infobank/p/p3568wg/html/p-35-68-wg.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 14:50:28 2013