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What does this data set describe?

Title:
Geophysical data of field activity L-6-76-AR in Arctic from 08/27/1976 to 09/03/1976
Abstract:
Chief Scientist: Art Grantz. Geophysical data (gravity, Burgairgun, uniboom, Digitrack, 3dot5khz, 24channel, sparker, sonobuoy, bottomseismometer, dopplersonar, integratednavigation, LoranC, transitsatellite, airgun, Burgsparker) of field activity L-6-76-AR in Arctic from 08/27/1976 to 09/03/1976, <http://walrus.wr.usgs.gov/infobank/l/l676ar/html/l-6-76-ar.meta.html>.
Supplemental_Information:

Equipment Used -
gravity
Burgairgun Burg single-channel arcer
uniboom
Digitrack
3dot5khz 3.5 khz bathymetry
24channel 24-channel seismic
sparker
sonobuoy
bottomseismometer
dopplersonar
integratednavigation
LoranC
transitsatellite
airgun
Burgsparker

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 L-6-76-AR in Arctic from 08/27/1976 to 09/03/1976: 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: -168.31174
    East_Bounding_Coordinate: -165.40790
    North_Bounding_Coordinate: 67.51450
    South_Bounding_Coordinate: 64.48150

  3. What does it look like?

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

    Beginning_Date: 27-Aug-1976
    Ending_Date: 03-Sep-1976
    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: 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:
    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:
    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?

    Al Long (Geophysicist); Andy Montez (Mechanical Technician); Art Grantz (Chief Scientist); Byron Ruppel (Navigator); Carrie Carpenter (Dafe Curator); Chris Carlson (Watchstander); Curtis Thompson (Chief Mate); Dave Aldridge (Watchstander); Gary Boucher (Geophysicist); Jim Krogstad (Watchstander, ABL); Joe Edwards (Mechanical Technician); Karen Bachmann (Watchstander); Paul Twitchell (Mechanical Technician); Ralph Curtiss (Chief Engineer); Steve Davenport (Watchstander); Steve Eittreim (Geophysicist); Sven Keinanen (Ship Captain); Terry Kelley (Electronics Technician); Terry Whitney (Watchstander); Tom Thornton (Electronics Technician)

  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: 19-Jan-1996 (process 1 of 4)
    Navigation Data
    Converted to time format with year at start.
    
    01/31/86 KAYE DUA0:[DATA.L676AR.N]L676AR.011;
    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 4)
    Gravity Data
    10/31/1998  /tiger/l/l676ar/grav/l-6-76-ar.161_011
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    01/02/86 BARB DUA0:[DATA.L676AR.G]L676AR.161;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    
    Input was...
    Converted to time format with year at start.
    
    01/31/86 KAYE DUA0:[DATA.L676AR.N]L676AR.011;
    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: 20-Jun-2012 (process 3 of 4)
    Magnetics Data
    06/20/2012 carolyn l-6-76-ar.220_011
    
    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/l/l676ar/mag/l-6-76-ar.200_011
    /bear/programs/edit/automerge/automerge
    
    Converted to time format with year at start.
    
    05/15/86 CAROLYN DRS$DATA:[LEE76]L676AR.200;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    was L676AR.200 from Barb (slaves were unreadable after 241/2329)
    
    Converted to time format with year at start.
    
    01/31/86 KAYE DUA0:[DATA.L676AR.N]L676AR.011;
    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: 03-Nov-2008 (process 4 of 4)
    Bathymetry Data
    11/03/2008 jpaz /infobank/l/l676ar/bath/l-6-76-ar.335_011
    /infobank/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    02/11/86 BECKIE DISK$USERDISK:[BECKIE.TEMP]L676AR.335;
    DRB0:[DRS.BAT]BATRED.EXE;1
    This file was hand-digetized in 2-way traveltime(secs).
    It was reduced using no Matthews correction and velocity
    of sound assumed was 1500m/sec.
    
    Input was...
    Converted to time format with year at start.
    
    01/31/86 KAYE DUA0:[DATA.L676AR.N]L676AR.011;
    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 (l-6-76-ar.011 [DRS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197608271952300    197608272003000
    197608272009500    197608272319500
    197608272330010    197608272338100
    197608272355390    197608272357400
    197608280003500    197608280104140
    197608280111480    197608280526300
    197608280535500    197608280549500
    197608280556500    197608281022500
    197608281328500    197608281810000
    197608281816000    197608281844000
    197608281900200    197608282307500
    197608282345100    197608300010400
    197608300034400    197608302002100
    197608302007500    197608302015500
    197608302028100    197608302034100
    197608302043500    197609010243100
    197609010249100    197609010249100
    197609010256300    197609010641000
    197609010646400    197609030012500
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (l-6-76-ar.161_011)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197608272056120    197608272315120
    197608272325000    197608272334120
    197608272350360    197608272352420
    197608272358480    197608280100300
    197608280106480    197608281017300
    197608281323480    197609010238300
    197609010244120    197609010244120
    197609010251300    197609022329120
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Magnetics Data (l-6-76-ar.220_011)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197608271952300    197608272003200
    197608272009500    197608272320530
    197608272330010    197608272339300
    197608272355390    197608272357400
    197608280003500    197608280105500
    197608280111480    197608281023100
    197608281328500    197609010243500
    197609010249100    197609010249100
    197609010256300    197609010641200
    197609010646400    197609030012380
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (l-6-76-ar.335_011)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197608272300000    197608280128480
    197608280134420    197608280134420
    197608280141180    197608280141180
    197608280147000    197608280147000
    197608280221540    197608280233540
    197608280239000    197608280316420
    197608280322000    197608280414420
    197608280420240    197608280420240
    197608280428480    197608280503300
    197608280508540    197608280508540
    197608280514120    197608280514120
    197608280519360    197608280523360
    197608280529420    197608280706420
    197608281413060    197608281533480
    197608281556000    197608281713540
    197608281720120    197608281734540
    197608281740060    197608281925540
    197608281935180    197608281939120
    197608281944360    197608281945540
    197608281951180    197608282035540
    197608282041360    197608282049060
    197608282054540    197608282151420
    197608282156480    197608282245540
    197608282251240    197608282302540
    197608282308360    197608282308360
    197608282313480    197608282313480
    197608282319540    197608282319540
    197608282325360    197608282334540
    197608282343000    197608282343000
    197608282348240    197608282348240
    197608282353360    197608290015240
    197608290020540    197608290020540
    197608290026360    197608290100360
    197608290106060    197608290114420
    197608290122360    197608290129540
    197608290135540    197608290135540
    197608290142000    197608290206540
    197608290215420    197608290220000
    197608290228540    197608290319240
    197608290326480    197608290329360
    197608290600240    197608290714420
    197608290749120    197608290800540
    197608290855120    197608290914480
    197608290928300    197608290945540
    197608290951120    197608290951120
    197608290956240    197608291005360
    197608291010480    197608291045480
    197608291051420    197608291051420
    197608291057420    197608291101180
    197608291106420    197608291117420
    197608291122480    197608291122480
    197608291127540    197608291201120
    197608291206240    197608291231120
    197608291237120    197608291237120
    197608291243300    197608291246240
    197608291251420    197608291331060
    197608291337240    197608291337240
    197608291342360    197608291412420
    197608291417540    197608291454240
    197608291526240    197608291534180
    197608291540300    197608291615420
    197608291621300    197608291821540
    197608291900240    197608292214060
    197608292233300    197608292328540
    197608292342120    197608300036540
    197608300045240    197608300100000
    197608300115540    197608300445300
    197608300501300    197608300529420
    197608300535240    197608300554360
    197608300600000    197608300600000
    197608300618240    197608301049420
    197608301102240    197608301142540
    197608301148000    197608301357300
    197608301416480    197608301533180
    197608301546360    197608301648300
    197608301701540    197608301816240
    197608301821480    197608301933000
    197608301939120    197608302002480
    197608302017060    197608302040360
    197608302046180    197608302054000
    197608302100000    197608302301540
    197608302309300    197608310022360
    197608310136540    197608310319360
    197608310325120    197608310406540
    197608310715240    197608310758360
    197608310851540    197608311033540
    197608311046300    197608311133000
    197608311144420    197608311219240
    197608311225000    197608311324000
    197608311329300    197608311415240
    197608311420300    197608311430000
    197608311709000    197608311801420
    197608311806480    197608311806480
    197608311812060    197608311812060
    197608311818540    197608311827540
    197608311833120    197608311924180
    197608311930000    197608312008420
    197608312015000    197608312119240
    197608312247000    197609010206000
    197609010802060    197609010802060
    197609010809000    197609010817540
    197609010823000    197609010827060
    197609010832120    197609010836360
    197609010842000    197609010842000
    197609010847240    197609010942420
    197609010947480    197609011026000
    197609011031420    197609011129000
    197609011148240    197609011314060
    197609011320240    197609011405540
    197609011411300    197609011415120
    197609011420540    197609011432000
    197609011437060    197609011501060
    197609011508000    197609011551540
    197609011557180    197609011557180
    197609011602240    197609011703480
    197609011709120    197609011905060
    197609011916120    197609012043180
    197609012049000    197609012241120
    197609012247060    197609020543120
    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 L-6-76-AR data set <http://walrus.wr.usgs.gov/infobank/l/l676ar/html/l-6-76-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: 0.2
Network links: <http://walrus.wr.usgs.gov/infobank/l/l676ar/html/l-6-76-ar.nav.html>

Data format: ASCII Size: 0.7
Network links: <http://walrus.wr.usgs.gov/infobank/l/l676ar/html/l-6-76-ar.grav.html>

Data format: ASCII Size: 1.4
Network links: <http://walrus.wr.usgs.gov/infobank/l/l676ar/html/l-6-76-ar.mag.html>

Data format: ASCII Size: 0.1
Network links: <http://walrus.wr.usgs.gov/infobank/l/l676ar/html/l-6-76-ar.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 12:51:18 2013