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What does this data set describe?

Title:
Geophysical data of field activity L-2-82-NC in Off San Mateo, Northern California from 02/07/1982 to 02/12/1982
Abstract:
Chief Scientists: Don Tompkins, Dennis Mann. Geophysical data (sonobuoy, 24channel, 3dot5khz, 12khz, magnetics, gravity, integratednavigation, RhoRho, transitsatellite) of field activity L-2-82-NC in Off San Mateo, Northern California from 02/07/1982 to 02/12/1982, <http://walrus.wr.usgs.gov/infobank/l/l282nc/html/l-2-82-nc.meta.html>.
Supplemental_Information:

Equipment Used -
sonobuoy
24channel 24-channel seismic
3dot5khz 3.5 khz bathymetry
12khz 12 khz bathymetry
magnetics
gravity
integratednavigation
RhoRho
transitsatellite

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-2-82-NC in Off San Mateo, Northern California from 02/07/1982 to 02/12/1982: 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: -123.48999
    East_Bounding_Coordinate: -122.19482
    North_Bounding_Coordinate: 37.83866
    South_Bounding_Coordinate: 34.01516

  3. What does it look like?

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

    Beginning_Date: 07-Feb-1982
    Ending_Date: 12-Feb-1982
    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: Off San Mateo, 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:
    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); Allen Adams (Watchstander); Barb Blubaugh (Navigator); Beckie Larsen (Navigator); Dave Melendrez (Chief Mate); Dave Hogg (Electronics Technician); Don Tompkins (Chief Scientist); Dennis Mann (Chief Scientist); Gordon Goodfellow (Watchstander); Greg Smith (Geophysicist); Hal Williams (Mechanical Technician); Joe Edwards (Mechanical Technician); Kaye Kinoshita (Dafe Curator); Kevin O'Toole (Mechanical Technician); Rick Viall (Electronics Technician); Roy Fields (Electronics Technician); Suzy Cloyd (Navigator); Terry Kelley (Electronics Technician); 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 4)
    Navigation Data
    Converted to time format with year at start.
    
    05/08/85 KAYE USR$DISK:[KAYE.COASTAL]NEW.053;
    USR$DISK:[DRS.REFMT]REFORMAT.EXE;4
     Original filename is l282nc.sinsg1._ from VAM345
    
    

    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/l282nc/grav/l-2-82-nc.151_053
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    08/06/85 BARB DRS$DATA:[L282NC.G]L282NC.151;
    DRB0:[DRS.REFMT]REFORMAT.EXE;4
    
    Input was...
    Converted to time format with year at start.
    
    05/08/85 KAYE USR$DISK:[KAYE.COASTAL]NEW.053;
    USR$DISK:[DRS.REFMT]REFORMAT.EXE;4
     Original filename is l282nc.sinsg1._ from VAM345
    
    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-2-82-nc.220_053
    
    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/l282nc/mag/l-2-82-nc.200_053
    /bear/programs/edit/automerge/automerge
    
    Converted to time format with year at start.
    
    11/21/85 CAROLYN DRS$DATA:[L282NC.M]L282NC.200;
    DRB0:[DRS.REFMT]REFORMAT.EXE;4
    was L282NC._.MAGSB1       on TAM345
    was L282NC220.DAT         on VAM345
    
    Converted to time format with year at start.
    
    05/08/85 KAYE USR$DISK:[KAYE.COASTAL]NEW.053;
    USR$DISK:[DRS.REFMT]REFORMAT.EXE;4
     Original filename is l282nc.sinsg1._ from VAM345
    
    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/l282nc/bath/l-2-82-nc.330_053
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    06/10/85 BECKIE USR$DISK:[DRS.DATA.L282NC.B]L282NC.330;
    DRA1:[DRS.BAT]BATRED.EXE;1
    This file is one-minute digitrack bathy (M). Two-way
    travel time was calculated useing 1500M/sec as speed
    of sound in water.
    
    Input was...
    Converted to time format with year at start.
    
    05/08/85 KAYE USR$DISK:[KAYE.COASTAL]NEW.053;
    USR$DISK:[DRS.REFMT]REFORMAT.EXE;4
     Original filename is l282nc.sinsg1._ from VAM345
    
    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-2-82-nc.053 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198202072155000    198202111641220
    198202111649070    198202111738190
    198202111747330    198202121645000
    198202121715000    198202121715000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (l-2-82-nc.151_053)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198202080106420    198202080132420
    198202080145420    198202081431420
    198202081454420    198202081746420
    198202081802420    198202082100000
    198202082138420    198202090410420
    198202090443000    198202090755000
    198202090813000    198202091442180
    198202091501180    198202091513180
    198202091531180    198202091602180
    198202091629180    198202091819180
    198202091831180    198202092044180
    198202092301180    198202100433180
    198202100454180    198202100855180
    198202100904180    198202100948180
    198202101016180    198202101650420
    198202101717420    198202101750420
    198202101837420    198202110250540
    198202110347420    198202111533180
    198202111620180    198202111633180
    198202111647180    198202112311180
    198202112323180    198202120855420
    198202120912420    198202121018420
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Magnetics Data (l-2-82-nc.220_053)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198202090116000    198202090420560
    198202090427000    198202090615560
    198202101853200    198202111601560
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (l-2-82-nc.330_053)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198202081724400    198202081726400
    198202081733400    198202090420440
    198202090427000    198202090739000
    198202101113200    198202111608200
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Seismic Shots Data (l-2-82-nc.410_053)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198202090111110    198202090418460
    198202090441420    198202090601190
    198202101150540    198202101653540
    198202101816160    198202111556400
    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-2-82-NC data set <http://walrus.wr.usgs.gov/infobank/l/l282nc/html/l-2-82-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: 0.1
Network links: <http://walrus.wr.usgs.gov/infobank/l/l282nc/html/l-2-82-nc.nav.html>

Data format: ASCII Size: 0.5
Network links: <http://walrus.wr.usgs.gov/infobank/l/l282nc/html/l-2-82-nc.grav.html>

Data format: ASCII Size: 1.4
Network links: <http://walrus.wr.usgs.gov/infobank/l/l282nc/html/l-2-82-nc.mag.html>

Data format: ASCII Size: 0.2
Network links: <http://walrus.wr.usgs.gov/infobank/l/l282nc/html/l-2-82-nc.bath.html>

Data format: ASCII Size: 0.5
Network links: <http://walrus.wr.usgs.gov/infobank/l/l282nc/html/l-2-82-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 13:59:37 2013