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What does this data set describe?

Title:
Geophysical data of field activity W-1-68-EG in Gulf of Alaska Shallow Water from 01/01/1968 to 02/24/1968
Abstract:
WesternGeco. Geophysical data (navigation, seismic) of field activity W-1-68-EG in Gulf of Alaska Shallow Water from 01/01/1968 to 02/24/1968, <http://walrus.wr.usgs.gov/infobank/w/w168eg/html/w-1-68-eg.meta.html>.
Supplemental_Information:

Equipment Used -
navigation data directory exists
seismic data directory exists
Notes -
Description of Survey Area 1: Gulf/Alaska Shallow Water 1968<br> <p>
Client Name WesternGeco Multiclient<br>
Coordinate Location Vessel Locations<br>
Spheroid Definition-Survey Clarke 1866 6378206.400 294.978698<br>
Spheroid Def. - Post Plot Clarke 1866 6378206.400 294.978698<br>
Geodetic Datum - Survey NAD 27<br>
Geodetic Datum - Post Plot NAD 27<br>
<p>
Datum Shifts<br>
Projection Type Transverse Mercator<br>
Grid System UTM Zone 7<br>
Grid Units Meters<br>
Central Meridian 141 0 0.000W<br>
Grid Origin 0 0 0.000N141 0 0.000W<br>
Grid Coordinates at Origin 500000.00E 0.00N<br>
Scale Factor 0.9996000000<br>
Scale Factor Defined at 0 0 0.000N141 0 0.000W<br>
<p>

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/>, 20131101, Geophysical data of field activity W-1-68-EG in Gulf of Alaska Shallow Water from 01/01/1968 to 02/24/1968: 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: -143.13829
    East_Bounding_Coordinate: -138.96492
    North_Bounding_Coordinate: 60.09347
    South_Bounding_Coordinate: 59.22769

  3. What does it look like?

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

    Beginning_Date: 01-Jan-1968
    Ending_Date: 24-Feb-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: Gulf of Alaska Shallow Water
      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:
    Navigation with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/nav.html>
    Entity_and_Attribute_Overview:
    Seismic Shots with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/seis.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: 07-Jul-2004 (process 1 of 1)
    Navigation Data
    07/07/2004 mosier name change to w-1-68-eg.051
    
    03/05/2004 clint w-1-68-eg.062
    /infobank/programs/time/lines2times/l2t
    Global positioning system (GPS) data
    times are faked
    
    Input was...
    02/02/2004 clint w-1-68-eg.061
    /infobank/programs/time/lines2times/lines2times
    Global positioning system (GPS) data
    times are fake
    
    year,day,hr,min,sec,tenths,lat,long,line,shot,easting,northing,depth
    

    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 (w-1-68-eg.051 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    196801010000001    196801010000015
    196801020000001    196801020000009
    196801030000001    196801030000013
    196801040000001    196801040000009
    196801050000001    196801050000008
    196801060000001    196801060000012
    196801070000001    196801070000013
    196801080000001    196801080000014
    196801090000001    196801090000017
    196801100000001    196801100000016
    196801110000001    196801110000011
    196801120000001    196801120000012
    196801130000001    196801130000008
    196801140000001    196801140000022
    196801150000001    196801150000005
    196801160000001    196801160000010
    196801170000001    196801170000012
    196801180000001    196801180000008
    196801190000001    196801190000009
    196801200000001    196801200000021
    196801210000001    196801210000026
    196801220000001    196801220000008
    196801230000001    196801230000009
    196801240000001    196801240000012
    196801250000001    196801250000010
    196801260000001    196801260000012
    196801270000001    196801270000017
    196801280000001    196801280000085
    196801290000001    196801290000026
    196801300000001    196801300000011
    196801310000001    196801310000023
    196802010000001    196802010000019
    196802020000001    196802020000011
    196802030000001    196802030000015
    196802040000001    196802040000012
    196802050000001    196802050000016
    196802060000001    196802060000014
    196802070000001    196802070000008
    196802080000001    196802080000013
    196802090000001    196802090000013
    196802100000001    196802100000006
    196802110000001    196802110000019
    196802120000001    196802120000019
    196802130000001    196802130000017
    196802140000001    196802140000029
    196802150000001    196802150000025
    196802160000001    196802160000007
    196802170000001    196802170000021
    196802180000001    196802180000007
    196802190000001    196802190000013
    196802200000001    196802200000012
    196802210000001    196802210000014
    196802220000001    196802220000009
    196802230000001    196802230000006
    196802240000001    196802240000010
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Seismic Shots Data (w-1-68-eg.420_051)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    196801010000001    196801010000015
    196801020000001    196801020000009
    196801030000001    196801030000013
    196801040000001    196801040000009
    196801050000001    196801050000008
    196801060000001    196801060000012
    196801070000001    196801070000013
    196801080000001    196801080000014
    196801090000001    196801090000017
    196801100000001    196801100000016
    196801110000001    196801110000011
    196801120000001    196801120000012
    196801130000001    196801130000008
    196801140000001    196801140000022
    196801150000001    196801150000005
    196801160000001    196801160000010
    196801170000001    196801170000012
    196801180000001    196801180000008
    196801190000001    196801190000009
    196801200000001    196801200000021
    196801210000001    196801210000026
    196801220000001    196801220000008
    196801230000001    196801230000009
    196801240000001    196801240000012
    196801250000001    196801250000010
    196801260000001    196801260000012
    196801270000001    196801270000017
    196801280000001    196801280000085
    196801290000001    196801290000026
    196801300000001    196801300000011
    196801310000001    196801310000023
    196802010000001    196802010000019
    196802020000001    196802020000011
    196802030000001    196802030000015
    196802040000001    196802040000012
    196802050000001    196802050000016
    196802060000001    196802060000014
    196802070000001    196802070000008
    196802080000001    196802080000013
    196802090000001    196802090000013
    196802100000001    196802100000006
    196802110000001    196802110000019
    196802120000001    196802120000019
    196802130000001    196802130000017
    196802140000001    196802140000029
    196802150000001    196802150000025
    196802160000001    196802160000007
    196802170000001    196802170000021
    196802180000001    196802180000007
    196802190000001    196802190000013
    196802200000001    196802200000012
    196802210000001    196802210000014
    196802220000001    196802220000009
    196802230000001    196802230000006
    196802240000001    196802240000010
    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 W-1-68-EG data set <http://walrus.wr.usgs.gov/infobank/w/w168eg/html/w-1-68-eg.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/w/w168eg/html/w-1-68-eg.nav.html>

Data format: ASCII Size: 0.1
Network links: <http://walrus.wr.usgs.gov/infobank/w/w168eg/html/w-1-68-eg.seis.html>

  • Cost to order the data: None


  • Who wrote the metadata?

    Dates:
    Last modified: 01-Nov-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 Fri Nov 1 14:08:42 2013