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What does this data set describe?

Title:
Geophysical data of field activity L-5A-79-NC in Northern California from 11/25/1979 to 11/30/1979
Abstract:
Chief Scientist: Dave McCulloch. Geophysical data (3dot5khz, 12khz, uniboom, airgun, 24channel, dopplersonar, integratednavigation, LoranC, transitsatellite, bathnav, gravity) of field activity L-5A-79-NC in Northern California from 11/25/1979 to 11/30/1979, <http://walrus.wr.usgs.gov/infobank/l/l5a79nc/html/l-5a-79-nc.meta.html>.
Supplemental_Information:

Equipment Used -
3dot5khz 3.5 khz bathymetry
12khz 12 khz bathymetry
uniboom
airgun single-channel airgun
24channel 24-channel seismic
dopplersonar
integratednavigation
LoranC
transitsatellite
bathnav bathymetry/navigation
gravity
Publications -
McCulloch, D.S., Mann, D.M., Sliter, R., and McClellan, P.H., 1988, Multichannel seismic-
reflection profiles collected in 1979, between latitudes 34 degrees 15' and 36 degrees 30'
north, off the California coast from Pt. Conception to Point Sur: U.S. Geological Survey
Open-File Report 88-0224, 3 p., 1 sheet. <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-5A-79-NC in Northern California from 11/25/1979 to 11/30/1979: 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: -122.85150
    East_Bounding_Coordinate: -117.43670
    North_Bounding_Coordinate: 36.25960
    South_Bounding_Coordinate: 32.78660

  3. What does it look like?

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

    Beginning_Date: 25-Nov-1979
    Ending_Date: 30-Nov-1979
    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: Northern California
      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:
    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?

    Barbara Seekins (Watchstander); Dave Aldridge (Geophysicist); Dave Hogg (Electronics Technician); Dave McCulloch (Chief Scientist); Dave Molzan (Geologist); Dennis Mann (Watchstander); Don Auburn (Chief Engineer); Frank Johnson (Chief Mate); Glen Barker (Mechanical Technician); Harry Hill (Electronics Technician); Jeanne Blank (Watchstander); Jeff Rupert (Mechanical Technician); Jerry Foreman (Unsp Investigatr); Jon Greenberg (Geophysicist); Kaye Kinoshita (Navigator); Kevin Heston (Navigator); Larry Kooker (Mechanical Technician); Steve May (Watchstander); Terry Ruff (Ship Captain)

  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 2)
    Navigation Data
    Converted to time format with year at start.
    
    12/06/90 MHAMER DRS$DATA:[L5A79NC.N.PLOT]L5A79NC_DAY331.010;3
    DUA0:[DRS.PLT.NAVED.EXE]NAVED.EXE;
    Dead reckoning data
    CLEANED UP SECTION OF TRACK FROM 3310924200 - 3311238200 TO MATCH BETTER
    WITH THE ORIGINAL DATA.
    
    10/14/87 BECKIE DISK$USERDISK:[PAT.NAV]L5A79NC.011
    This file is a combination of L579NC.010 (new name:
    L5A79NC.010) AND L5A79NCPRT2.011. The .010 file
    has not been smoothed.
    
    10/14/87 BECKIE DISK$USERDISK:[PAT.NAV]L5A79NCPRT2.011;
    DUA0:[DRS.REFMT]REFORMAT.EXE;6
    This file is navigation taken from shotpoint logs
    and smoothed by Clint Steele.  Starting time for
    this portion of the navigation starts at 3310402190
    and continues until the end of the shotpoint data.
    
    12/24/85 KAYE DUA0:[DATA.L579NC.N]L579NC.010;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    Original filename is l579nc.drcpc1._.
    
    

    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 2)
    Gravity Data
    10/31/1998  /tiger/l/l5a79nc/grav/l-5a-79-nc.112_012
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    11/19/85 BARB DUA0:[DATA.L579NC.G]L579NC.116;
    DRB0:[DRS.REFMT]REFORMAT.EXE;4
    
    Input was...
    Converted to time format with year at start.
    
    12/06/90 MHAMER DRS$DATA:[L5A79NC.N.PLOT]L5A79NC_DAY331.010;3
    DUA0:[DRS.PLT.NAVED.EXE]NAVED.EXE;
    Dead reckoning data
    CLEANED UP SECTION OF TRACK FROM 3310924200 - 3311238200 TO MATCH BETTER
    WITH THE ORIGINAL DATA.
    
    10/14/87 BECKIE DISK$USERDISK:[PAT.NAV]L5A79NC.011
    This file is a combination of L579NC.010 (new name:
    L5A79NC.010) AND L5A79NCPRT2.011. The .010 file
    has not been smoothed.
    
    10/14/87 BECKIE DISK$USERDISK:[PAT.NAV]L5A79NCPRT2.011;
    DUA0:[DRS.REFMT]REFORMAT.EXE;6
    This file is navigation taken from shotpoint logs
    and smoothed by Clint Steele.  Starting time for
    this portion of the navigation starts at 3310402190
    and continues until the end of the shotpoint data.
    
    12/24/85 KAYE DUA0:[DATA.L579NC.N]L579NC.010;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    Original filename is l579nc.drcpc1._.
    
    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:
    McCulloch, D.S., Mann, D.M., Sliter, R., and McClellan, P.H., 1988, Multichannel seismic- reflection profiles collected in 1979, between latitudes 34 degrees 15' and 36 degrees 30' north, off the California coast from Pt. Conception to Point Sur: U.S. Geological Survey Open-File Report 88-0224, 3 p., 1 sheet.



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-5a-79-nc.012 [DRS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197911250220200    197911291556050
    197911291618510    197911300010450
    197911300032170    197911300131150
    197911300200250    197911300842250
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (l-5a-79-nc.112_012)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197911250220200    197911251520000
    197911251614200    197911271446200
    197911271453200    197911271953400
    197911272020400    197911280119200
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Seismic Shots Data (l-5a-79-nc.420_012)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197911270402000    197911270746310
    197911270754000    197911270922020
    197911270958000    197911272126260
    197911272228000    197911280621060
    197911280716000    197911281855500
    197911281957000    197911290227460
    197911290431000    197911291530560
    197911291618000    197911292303010
    197911292332000    197911300824380
    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-5A-79-NC data set <http://walrus.wr.usgs.gov/infobank/l/l5a79nc/html/l-5a-79-nc.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: 0.4
Network links: <http://walrus.wr.usgs.gov/infobank/l/l5a79nc/html/l-5a-79-nc.nav.html>

Data format: ASCII Size: 2.1
Network links: <http://walrus.wr.usgs.gov/infobank/l/l5a79nc/html/l-5a-79-nc.grav.html>

Data format: ASCII Size: 0.8
Network links: <http://walrus.wr.usgs.gov/infobank/l/l5a79nc/html/l-5a-79-nc.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 14:02:05 2013