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What does this data set describe?

Title:
Geophysical data of field activity B-1-72-AR in Beaufort-Chukchi Seas, Arctic from 08/25/1972 to 09/20/1972
Abstract:
United States Geological Survey, Menlo Park, California. Chief Scientist: Art Grantz. Geophysical data (uniboom, magnetics, gravity) of field activity B-1-72-AR in Beaufort-Chukchi Seas, Arctic from 08/25/1972 to 09/20/1972, <http://walrus.wr.usgs.gov/infobank/b/b172ar/html/b-1-72-ar.meta.html>.
Supplemental_Information:

Equipment Used -
uniboom
magnetics
gravity
Publications -
Grantz, Arthur, Holmes, M.L., Riley, D.C., and Wallace, S.L.,
1972, Seismic, magnetic and gravity profiles-Chukchi Sea and
adjacent Arctic Ocean, 1972; Part 1, Seismic reflection profiles:
U.S. Geological Survey Open-File Report 72-138, 21 sheets,
scale 1:1,000,000,
URL <a href="<http://pubs.er.usgs.gov/publication/ofr72138>" target="ofr"><http://pubs.er.usgs.gov/publication/ofr72138>.


Online PDFs of scanned map sheets and seismic recorder rolls
from USGS Open-File Report 72-138 are available
at the Alaska Geological and Geophysical Surveys Publications,
URL <a href = "
<http://www.dggs.dnr.state.ak.us/pubs/id/10948>" target="report"><http://www.dggs.dnr.state.ak.us/pubs/id/10948>.


Cady, J.W., Ruppel, B.D., McHendrie, A.G., and Deas, H.S., 1973, Seismic, magnetic and gravity profiles; Chukchi Sea and adjacent Arctic Ocean, 1972; Part 2, Magnetic and gravity profiles, 29 sheets, scale 1:1,000,000.
U.S. Geological Survey Open-File Report 73-38, 29 sheets,
scale 1:1,000,000,
URL <a href="
<http://pubs.er.usgs.gov/publication/ofr7338>" target="ofr"><http://pubs.er.usgs.gov/publication/ofr7338>.


Online PDFs of scanned map sheets and seismic recorder rolls
from USGS Open-File Report 73-38 are available
at the Alaska Geological and Geophysical Surveys Publications,
URL <a href = "
<http://www.dggs.dnr.state.ak.us/pubs/id/10977>" target="report"><http://www.dggs.dnr.state.ak.us/pubs/id/10977>.

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 B-1-72-AR in Beaufort-Chukchi Seas, Arctic from 08/25/1972 to 09/20/1972: 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: -175.84801
    East_Bounding_Coordinate: -153.96048
    North_Bounding_Coordinate: 74.02116
    South_Bounding_Coordinate: 68.40600

  3. What does it look like?

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

    Beginning_Date: 25-Aug-1972
    Ending_Date: 20-Sep-1972
    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: Beaufort-Chukchi Seas, Arctic
      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:
    Gravity with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/grav.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?

    Art Grantz (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: 06-Dec-1995 (process 1 of 3)
    Navigation Data
    Converted to time format with year at start.
    
    02/11/86 KAYE DUA0:[DATA.B172AR.N]B172AR.050;
    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: 31-Oct-1998 (process 2 of 3)
    Gravity Data
    10/31/1998  /lion/b/b172ar/grav/b-1-72-ar.165_050
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    03/07/86 BARB DUA0:[DATA.BARB.CSTAPES]B172AR.165;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    
    Input was...
    Converted to time format with year at start.
    
    02/11/86 KAYE DUA0:[DATA.B172AR.N]B172AR.050;
    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: 02-Jul-2012 (process 3 of 3)
    Magnetics Data
    07/02/2012 carolyn b-1-72-ar.260_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  /lion/b/b172ar/mag/b-1-72-ar.240_050
    /bear/programs/edit/automerge/automerge
    
    Converted to time format with year at start.
    
    02/24/86 CAROLYN DRS$DATA:[B172AR.M]B172AR.240;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    was B172AR._.MAGSX1 on TAM009
    was B172AR200.DAT   on VAM009
    
    Converted to time format with year at start.
    
    02/11/86 KAYE DUA0:[DATA.B172AR.N]B172AR.050;
    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:

    Other_Citation_Details:
    Grantz, Arthur, Holmes, M.L., Riley, D.C., and Wallace, S.L., 1972, Seismic, magnetic and gravity profiles-Chukchi Sea and adjacent Arctic Ocean, 1972; Part 1, Seismic reflection profiles: U.S. Geological Survey Open-File Report 72-138, 21 sheets, scale 1:1,000,000, URL <a href="<http://pubs.er.usgs.gov/publication/ofr72138>" target="ofr"><http://pubs.er.usgs.gov/publication/ofr72138>.
    Online PDFs of scanned map sheets and seismic recorder rolls from USGS Open-File Report 72-138 are available at the Alaska Geological and Geophysical Surveys Publications, URL <a href = "
    <http://www.dggs.dnr.state.ak.us/pubs/id/10948>" target="report"><http://www.dggs.dnr.state.ak.us/pubs/id/10948>.
    Cady, J.W., Ruppel, B.D., McHendrie, A.G., and Deas, H.S., 1973, Seismic, magnetic and gravity profiles; Chukchi Sea and adjacent Arctic Ocean, 1972; Part 2, Magnetic and gravity profiles, 29 sheets, scale 1:1,000,000. U.S. Geological Survey Open-File Report 73-38, 29 sheets, scale 1:1,000,000, URL <a href="
    <http://pubs.er.usgs.gov/publication/ofr7338>" target="ofr"><http://pubs.er.usgs.gov/publication/ofr7338>.
    Online PDFs of scanned map sheets and seismic recorder rolls from USGS Open-File Report 73-38 are available at the Alaska Geological and Geophysical Surveys Publications, URL <a href = "
    <http://www.dggs.dnr.state.ak.us/pubs/id/10977>" target="report"><http://www.dggs.dnr.state.ak.us/pubs/id/10977>.



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 (b-1-72-ar.050 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197208251920000    197209071836000
    197209072010000    197209090602000
    197209090736000    197209100326000
    197209100452000    197209101724000
    197209102016000    197209102016000
    197209110448000    197209110448000
    197209112045000    197209120514000
    197209120702000    197209120821000
    197209120948000    197209130422000
    197209130610000    197209131706000
    197209131932000    197209140150000
    197209140334000    197209140626000
    197209140814000    197209150546000
    197209150724000    197209151732000
    197209151944000    197209160858000
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    197209190010000    197209190106000
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    197209190746000    197209190932000
    197209191100000    197209191528000
    197209191716000    197209200624000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (b-1-72-ar.165_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197208252015000    197208260235000
    197208261220000    197208261410000
    197208261420000    197208261715000
    197208261725000    197208261820000
    197208261830000    197208261830000
    197208261845000    197208261845000
    197208262015000    197208262125000
    197208262135000    197208262355000
    197208270005000    197208270045000
    197208270100000    197208270100000
    197208270120000    197208270125000
    197208270135000    197208270505000
    197208270520000    197208270715000
    197208270850000    197208271030000
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    197208271125000    197208271155000
    197208271205000    197208271350000
    197208271400000    197208271400000
    197208271410000    197208271410000
    197208271420000    197208271420000
    197208280010000    197208280010000
    197208280020000    197208280020000
    197208280030000    197208280030000
    197208280040000    197208280040000
    197208280050000    197208280050000
    197208280100000    197208280100000
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    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Magnetics Data (b-1-72-ar.260_050)
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    197209051237359    197209051237359
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    197209051427479    197209051524120
    197209051545000    197209051545000
    197209051644000    197209051644000
    197209051715000    197209051735479
    197209051807119    197209051807119
    197209051837479    197209052019360
    197209052048479    197209052048479
    197209052120000    197209060022000
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    197209081143000    197209081222179
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    197209081422120    197209081437240
    197209081541359    197209081541359
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    197209120613119    197209120626000
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    197209120715239    197209120715239
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    197209120844179    197209120854420
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    197209121613000    197209121904240
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    197209122012360    197209122233300
    197209122253479    197209131836420
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    197209132255179    197209132255179
    197209132315419    197209132315419
    197209140018300    197209140100000
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    197209140205300    197209140333300
    197209140356179    197209141200300
    197209141226120    197209142114300
    197209142136479    197209151948179
    197209152118539    197209161501120
    197209162357059    197209181514539
    197209182139000    197209190632000
    197209190659420    197209191142479
    197209191209419    197209191815000
    197209191842420    197209191901239
    197209191926300    197209191939540
    197209192026000    197209192101060
    197209192122179    197209192201179
    197209192231420    197209192239000
    197209192314180    197209192327000
    197209192354059    197209200617060
    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 B-1-72-AR data set <http://walrus.wr.usgs.gov/infobank/b/b172ar/html/b-1-72-ar.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/b/b172ar/html/b-1-72-ar.nav.html>

Data format: ASCII Size: 0.4
Network links: <http://walrus.wr.usgs.gov/infobank/b/b172ar/html/b-1-72-ar.grav.html>

Data format: ASCII Size: 0.5
Network links: <http://walrus.wr.usgs.gov/infobank/b/b172ar/html/b-1-72-ar.mag.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 07:45:54 2013