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What does this data set describe?

Title:
Geophysical data of field activity V-1-81-SC in Southern California from 08/24/1981 to 08/30/1981
Abstract:
Chief Scientists: Brian Edwards, Mike Field. Geophysical data (3dot5khz, RhoRho, miniranger, radar, transitsatellite, minisparker, uniboom, sidescansonar, gravitycore, underwatercamera) of field activity V-1-81-SC in Southern California from 08/24/1981 to 08/30/1981, <http://walrus.wr.usgs.gov/infobank/v/v181sc/html/v-1-81-sc.meta.html>.
Supplemental_Information:

Equipment Used -
3dot5khz 3.5 khz bathymetry
RhoRho Loran-C Rho-Rho
miniranger
radar
transitsatellite
minisparker
uniboom
sidescansonar
gravitycore
underwatercamera

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/>, 20140105, Geophysical data of field activity V-1-81-SC in Southern California from 08/24/1981 to 08/30/1981: 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: -120.52517
    East_Bounding_Coordinate: -118.38283
    North_Bounding_Coordinate: 34.40625
    South_Bounding_Coordinate: 33.20033

  3. What does it look like?

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

    Beginning_Date: 24-Aug-1981
    Ending_Date: 30-Aug-1981
    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: Southern 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:
    Bathymetry with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/bath.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?

    Andy Valois (Ship Captain); Anne Jennings (Geologist); Bob Hall (Geologist); Brian Edwards (Chief Scientist, USGS Western Region); Carol Hirozawa (Navigator, USGS Western Region); Carol Madison (Navigator, USGS Western Region); Jim Gardner (Geologist, USGS Western Region); Kevin O'Toole (Mechanical Technician, USGS Western Region); Larry Kooker (Electronics Technician, USGS Western Region); Mike Field (Chief Scientist, USGS Western Region); Russell Crane (Geologist); Tim Vogel (Geochemist); Whitey Platt (Chief Mate)

  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: 15-Dec-1995 (process 1 of 2)
    Navigation Data
    Converted to time format with year at start.
    
    11/19/85 EDM USR$DISK:[CLINT.NAV1.V181SC]V181SC.052;
    DRA1:[EDM]REFORMAT.EXE;
    
    

    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)
    Bathymetry Data
    10/31/1998  /tiger/v/v181sc/bath/v-1-81-sc.335_052
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    12/06/85 BECKIE DUA0:[DATA.V181SC.B]V181SC.335;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    I believe this file was hand-digetized in seconds-
    2_way traveltime.  Velocity assumed: 1500M/sec.
    
    Input was...
    Converted to time format with year at start.
    
    11/19/85 EDM USR$DISK:[CLINT.NAV1.V181SC]V181SC.052;
    DRA1:[EDM]REFORMAT.EXE;
    
    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 (v-1-81-sc.052 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198108242120000    198108242220000
    198108242320000    198108250007000
    198108250140000    198108250140000
    198108250241000    198108250342000
    198108250509000    198108250509000
    198108250555000    198108250609000
    198108250707000    198108250754000
    198108250910000    198108250953000
    198108251040000    198108251333000
    198108252229000    198108252255000
    198108252341000    198108252341000
    198108260123000    198108260123000
    198108260245000    198108260318000
    198108260542430    198108270024210
    198108270224000    198108270251000
    198108270346000    198108270346000
    198108270437000    198108270451000
    198108270536000    198108270545000
    198108270658000    198108270724000
    198108270822000    198108270822000
    198108270939000    198108271420000
    198108271505000    198108271553000
    198108271643000    198108271651000
    198108271734000    198108271804000
    198108272000000    198108272000000
    198108280834000    198108281027000
    198108281802000    198108281900000
    198108282007000    198108282040000
    198108290511410    198108291222000
    198108291659000    198108291659000
    198108291745000    198108300715000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (v-1-81-sc.335_052)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198108261421000    198108261448240
    198108261456000    198108261527000
    198108261548120    198108261618300
    198108261628300    198108261653480
    198108261712420    198108261743120
    198108261759060    198108261836540
    198108262005480    198108262047240
    198108262130000    198108262209540
    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 V-1-81-SC data set <http://walrus.wr.usgs.gov/infobank/v/v181sc/html/v-1-81-sc.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/v/v181sc/html/v-1-81-sc.nav.html>

Data format: ASCII Size: 0.0
Network links: <http://walrus.wr.usgs.gov/infobank/v/v181sc/html/v-1-81-sc.bath.html>

  • Cost to order the data: None


  • Who wrote the metadata?

    Dates:
    Last modified: 05-Jan-2014
    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 Sun Jan 5 06:36:30 2014