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What does this data set describe?

Title:
Geophysical data of field activity L-4-83-BS in Bering Sea, Alaska from 09/16/1983 to 10/02/1983
Abstract:
Chief Scientist: Mike Fisher. Geophysical data (courserecorder, dopplersonar, integratednavigation, transitsatellite, uniboom, airgun, 24channel, magnetics, gravity, 12khz, 3dot5khz, RhoRho) of field activity L-4-83-BS in Bering Sea, Alaska from 09/16/1983 to 10/02/1983, <http://walrus.wr.usgs.gov/infobank/l/l483bs/html/l-4-83-bs.meta.html>.
Supplemental_Information:

Equipment Used -
courserecorder
dopplersonar
integratednavigation
transitsatellite
uniboom
airgun single-channel airgun
24channel 24-channel seismic
magnetics shipboard magnetics
gravity shipboard gravity
12khz
3dot5khz
RhoRho
Publications -
Carlson, P.R., Karl, H.A., Edwards, B.D., Gardner, J.V., and Hall, R., 1993, Mass
movement related to large submarine canyons along the Beringian margin, Alaska, in
Schwab, W.C., Lee, H.J., Twichell, D.C., eds., Submarine landslides; selected
studies in the U.S. Exclusive Economic Zone: U.S. Geological Survey Bulletin 2002,
p. 104-116.<BR>

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 L-4-83-BS in Bering Sea, Alaska from 09/16/1983 to 10/02/1983: 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: -177.03690
    East_Bounding_Coordinate: -160.91098
    North_Bounding_Coordinate: 64.56765
    South_Bounding_Coordinate: 53.89226

  3. What does it look like?

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

    Beginning_Date: 16-Sep-1983
    Ending_Date: 02-Oct-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: Bering Sea, 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:
    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>
    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?

    Aaron Dunwald (Chief Engineer); Al McClenaghan (Ship Captain); Beckie Larsen (Watchstander); Dennis Mann (Chief Seismic Watchstander); Don Jessup (Watchstander); Eric Dasch (Watchstander); Holly Ryan (Watchstander); Jim Vaughan (Electronics Technician); Jon Erickson (Mechanical Technician); Kaye Kinoshita (Navigator); Larry Kooker (Electronics Technician); Mike Fisher (Chief Scientist); Pat Moore (Chief Mate); Paul Wenberg (Mechanical Technician); Ralph Tolson (Watchstander); Robin Bouse (Navigator); Sue Hunt (Navigator)

  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.
    
    05/02/85 KAYE USR$DISK:[DRS.DATA.L483BS.N]NEW.070;
    USR$DISK:[DRS.REFMT]REFORMAT.EXE;4
    
    

    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/l483bs/grav/l-4-83-bs.161_070
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    05/13/85 BARB USR$DISK:[DRS.DATA.L483BS.G]L483BS.161;
    USR$DISK:[DRS.REFMT]REFORMAT.EXE;4
    Meter 53
    
    Input was...
    Converted to time format with year at start.
    
    05/02/85 KAYE USR$DISK:[DRS.DATA.L483BS.N]NEW.070;
    USR$DISK:[DRS.REFMT]REFORMAT.EXE;4
    
    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-4-83-bs.220_070
    
    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/l483bs/mag/l-4-83-bs.200_070
    /bear/programs/edit/automerge/automerge
    
    Converted to time format with year at start.
    
    01/02/86 CAROLYN DRS$DATA:[L483BS.M]L483BS.200;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    reformatted from L483BS.220 originally on tape DRS032
    
    Converted to time format with year at start.
    
    05/02/85 KAYE USR$DISK:[DRS.DATA.L483BS.N]NEW.070;
    USR$DISK:[DRS.REFMT]REFORMAT.EXE;4
    
    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 4 of 4)
    Bathymetry Data
    10/31/1998  /tiger/l/l483bs/bath/l-4-83-bs.330_070
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    05/14/85 BECKIE USR$DISK:[DRS.DATA.L483BS.B]L483BS.330;
    DRA1:[DRS.BAT]BATRED.EXE;1
    This is one-minute edited digitrack bathy.
    
    Input was...
    Converted to time format with year at start.
    
    05/02/85 KAYE USR$DISK:[DRS.DATA.L483BS.N]NEW.070;
    USR$DISK:[DRS.REFMT]REFORMAT.EXE;4
    
    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:
    Carlson, P.R., Karl, H.A., Edwards, B.D., Gardner, J.V., and Hall, R., 1993, Mass movement related to large submarine canyons along the Beringian margin, Alaska, in Schwab, W.C., Lee, H.J., Twichell, D.C., eds., Submarine landslides; selected studies in the U.S. Exclusive Economic Zone: U.S. Geological Survey Bulletin 2002, p. 104-116.



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-4-83-bs.070)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198309162123000    198309261240520
    198309261300000    198310021447000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (l-4-83-bs.161_070)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198309162124200    198309200234190
    198309200239430    198309211938350
    198309212050430    198309232134030
    198309232141470    198309251333550
    198309251339310    198309302216050
    198309302222050    198310021447000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Magnetics Data (l-4-83-bs.220_070)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198309170403000    198309200354120
    198309200408560    198309221455350
    198309230105000    198309261126190
    198309270341440    198309272113050
    198309291852000    198309301813000
    198309302104000    198310020816000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (l-4-83-bs.330_070)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198309162206000    198309181429570
    198309181440390    198309221901000
    198309221909000    198309251429590
    198309251441550    198309261240520
    198309261300000    198309261733000
    198309261757000    198309261927000
    198309270310000    198309271855460
    198309271904130    198309271908020
    198309271920290    198309271920290
    198309271936430    198309271937130
    198309272011320    198309272012020
    198309272032330    198309272032330
    198309272055000    198309272055000
    198309272113350    198309280506000
    198309280526000    198309280812000
    198309280819000    198309280844000
    198309280850000    198309291900000
    198309292011000    198310021437000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Seismic Shots Data (l-4-83-bs.400_070)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198309230223170    198309232120090
    198309232134230    198309240311230
    198309240522510    198309240720110
    198309240727030    198309242046570
    198309242053470    198309250909100
    198309251233120    198309252127110
    198309252357090    198309260718070
    198309260956130    198309261114370
    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-4-83-BS data set <http://walrus.wr.usgs.gov/infobank/l/l483bs/html/l-4-83-bs.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: 4.1
Network links: <http://walrus.wr.usgs.gov/infobank/l/l483bs/html/l-4-83-bs.nav.html>

Data format: ASCII Size: 4.9
Network links: <http://walrus.wr.usgs.gov/infobank/l/l483bs/html/l-4-83-bs.grav.html>

Data format: ASCII Size: 3.2
Network links: <http://walrus.wr.usgs.gov/infobank/l/l483bs/html/l-4-83-bs.mag.html>

Data format: ASCII Size: 3.7
Network links: <http://walrus.wr.usgs.gov/infobank/l/l483bs/html/l-4-83-bs.bath.html>

Data format: ASCII Size: 0.1
Network links: <http://walrus.wr.usgs.gov/infobank/l/l483bs/html/l-4-83-bs.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 14:00:42 2013