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What does this data set describe?

Title:
Geophysical data of field activity B-1-72-SC in Central California from 11/11/1972 to 11/15/1972
Abstract:
United States Geological Survey, Menlo Park, California. Chief Scientists: Gary Greene, Eli Silver. Geophysical data (bathymetry, uniboom, airgunarcer, gravity, magnetics, sonobuoy, dredge) of field activity B-1-72-SC in Central California from 11/11/1972 to 11/15/1972, <http://walrus.wr.usgs.gov/infobank/b/b172sc/html/b-1-72-sc.meta.html>.
Supplemental_Information:

Equipment Used -
bathymetry
uniboom
airgunarcer
gravity
magnetics
sonobuoy
dredge
Publications -
Vedder, J.G., Beyer, L.A., Junger, Arne, Moore, G.W., Roberts, A.E., Taylor, J.C.,
and Wagner, H.C., 1974, Preliminary report on the geology of the continental borderland
of Southern California: U.S. Geological Survey Miscellaneous Field Studies Map, MF-0624,
p. 34. <BR>
<HR>
Vedder, J.G., Taylor, J.C., Arnal, R.E., and Bukry, D., 1976, Map showing location of
selected pre-Quaternary rock samples from the California continental borderland: U.S.
Geological Survey Miscellaneous Field Studies Map MF-737.<BR>
<HR>
Vedder, J.G., and Howell, D.G., 1979, Geologic framework of the southern California borderland: U.S.
Geological Survey Professional Paper 1150, p. 146-147. <BR>
<HR>
Vedder, J.G., Crouch, J.K., Scott, E.W., Greene, H.G., Cranmer, D., Ibrahim, M., Tudor, R.B., and
Vinning, G., 1980, A summary report of the regional geology, petroleum potential, environmental
geology, and operational considerations in the area of proposed lease sale no. 68, offshore southern
California: U.S. Geological Survey Open-File Report 80-198, 64 p.<BR>
<HR>
Vedder, J.G., 1990, Maps of California continental borderland showing compositions and ages
of bottom samples acquired between 1968 and 1979: U.S. Geological Survey Miscellaneous
Field Studies Map MF-2122, 3 sheets.<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/>, 20131029, Geophysical data of field activity B-1-72-SC in Central California from 11/11/1972 to 11/15/1972: 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: -123.65249
    East_Bounding_Coordinate: -117.38731
    North_Bounding_Coordinate: 37.71533
    South_Bounding_Coordinate: 32.40505

  3. What does it look like?

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

    Beginning_Date: 11-Nov-1972
    Ending_Date: 15-Nov-1972
    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: Central 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:
    Samples with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/samp.html>
    Entity_and_Attribute_Detail_Citation:
    "time/lat/long style, multi-record, in caps, without tabs"
    Mnemonic:       "(Year, DayOfYear, UTCHour, Min, Sec, Tenths, Lat, Long, ActivityID, EquipmentType, Depth, DepthUnits, Line, Station, Roll, Comments)  [DAPS]"
    FORTRAN format: "(Year, DayOfYear, UTCHour, Min, Sec, Tenths, Hundredths, Lat, Long, ActivityID, EquipmentType, Depth, DepthUnits, Line, Station, Roll, Comments) [DAPX]"
    C format:       "(i4.4, i3.3, 3i2.2, i1.1, t16, f9.5, t26, f10.5, t37, a, t45, a24, t70, f6.1, t78, a1, t80, a9, t90, a9, t100, a9, t110, a)  [DAPS]"
    Naming:         .onoff.GRAV_EQUIPMENT_TYPE
    


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?

    Gary Greene (Chief Scientist, USGS Western Region); Eli Silver (Chief Scientist, USGS Western Region)

  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: 06-Dec-1995 (process 1 of 4)
    Navigation Data
    Converted to time format with year at start.
    
    02/11/86 KAYE DUA0:[DATA.B172SC.N]B172SC.050;
    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  /lion/b/b172sc/grav/b-1-72-sc.161_050
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    01/06/86 BARB DUA0:[DATA.B174AR.G]B172SC.161;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    gravity meter used to collect data is unknown
    file contains no faa or eotvos values
    
    Input was...
    Converted to time format with year at start.
    
    02/11/86 KAYE DUA0:[DATA.B172SC.N]B172SC.050;
    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: 21-Jun-2012 (process 3 of 4)
    Magnetics Data
    06/21/2012 carolyn b-1-72-sc.260_050
    
    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  /lion/b/b172sc/mag/b-1-72-sc.240_050
    /bear/programs/edit/automerge/automerge
    
    Converted to time format with year at start.
    
    02/25/86 CAROLYN DRS$DATA:[B172SC.M]B172SC.240;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    was B172SC._.MAGSX2 on TAM149
    was B172SC200.DAT   on VAM149
    
    Converted to time format with year at start.
    
    02/11/86 KAYE DUA0:[DATA.B172SC.N]B172SC.050;
    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: 31-Oct-1998 (process 4 of 4)
    Bathymetry Data
    10/31/1998  /lion/b/b172sc/bath/b-1-72-sc.335_050
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    03/07/86 BECKIE DISK$USERDISK:[BECKIE.TEMP]B172SC.335;
    DRB0:[DRS.BAT]BATRED.EXE;1
    I believe this file was hand-picked in 2-way traveltime(secs).
    
    Input was...
    Converted to time format with year at start.
    
    02/11/86 KAYE DUA0:[DATA.B172SC.N]B172SC.050;
    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:

    Other_Citation_Details:
    Vedder, J.G., Beyer, L.A., Junger, Arne, Moore, G.W., Roberts, A.E., Taylor, J.C., and Wagner, H.C., 1974, Preliminary report on the geology of the continental borderland of Southern California: U.S. Geological Survey Miscellaneous Field Studies Map, MF-0624, p. 34. Vedder, J.G., Taylor, J.C., Arnal, R.E., and Bukry, D., 1976, Map showing location of selected pre-Quaternary rock samples from the California continental borderland: U.S. Geological Survey Miscellaneous Field Studies Map MF-737. Vedder, J.G., and Howell, D.G., 1979, Geologic framework of the southern California borderland: U.S. Geological Survey Professional Paper 1150, p. 146-147. Vedder, J.G., Crouch, J.K., Scott, E.W., Greene, H.G., Cranmer, D., Ibrahim, M., Tudor, R.B., and Vinning, G., 1980, A summary report of the regional geology, petroleum potential, environmental geology, and operational considerations in the area of proposed lease sale no. 68, offshore southern California: U.S. Geological Survey Open-File Report 80-198, 64 p. Vedder, J.G., 1990, Maps of California continental borderland showing compositions and ages of bottom samples acquired between 1968 and 1979: U.S. Geological Survey Miscellaneous Field Studies Map MF-2122, 3 sheets.



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 (b-1-72-sc.050 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197211091950000    197211191700000
    197211191832000    197211191848000
    197211192018000    197211192200000
    197211200130000    197211200328000
    197211200516000    197211200858000
    197211201022000    197211201948000
    197211202134000    197211202330000
    197211210100000    197211210704000
    197211210914000    197211211402000
    197211211532000    197211211858000
    197211212020000    197211212218000
    197211212346000    197211221500000
    197211221624000    197211230538000
    197211230710000    197211231410000
    197211231718000    197211232330000
    197211240204000    197211241620000
    197211241748000    197211241748000
    197211242010000    197211242112000
    197211242258000    197211242258000
    197211250120000    197211250120000
    197211250304000    197211250304000
    197211262200000    197211262200000
    197211262330000    197211270550000
    197211270736000    197211271746000
    197211271928000    197211271928000
    197211272220000    197211272220000
    197211280134000    197211280508000
    197211280830000    197211280934000
    197211281120000    197211281120000
    197211281338000    197211281614000
    197211281754000    197211281754000
    197211281942000    197211282128000
    197211282300000    197211291449000
    197211302326000    197212010000000
    197212010142000    197212010402000
    197212010530000    197212010900000
    197212011038000    197212011038000
    197212011300000    197212011632000
    197212011802000    197212012100000
    197212012240000    197212020056000
    197212020306000    197212020306000
    197212020432000    197212020518000
    197212020648000    197212020900000
    197212021138000    197212021138000
    197212021356000    197212021458000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (b-1-72-sc.161_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197211151258300    197211151843300
    197211201610000    197211210730000
    197211210740000    197211221930000
    197211222010000    197211222045000
    197211222055000    197211230330000
    197211230340000    197211230530000
    197211230540000    197211240400000
    197211240425000    197211242210000
    197211242220000    197211250210000
    197211262125000    197211262150000
    197211262200000    197211270640000
    197211270650000    197211271655000
    197211282215000    197211290115000
    197211290125000    197211290410000
    197211290420000    197211291020000
    197211291030000    197211291445000
    197211302235000    197211302245000
    197211302300000    197212010040000
    197212010050000    197212010835000
    197212010845000    197212011345000
    197212011355000    197212011625000
    197212011635000    197212020000000
    197212020015000    197212020305000
    197212020315000    197212021010000
    197212021035000    197212021035000
    197212021045000    197212021455000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Magnetics Data (b-1-72-sc.260_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197211151236350    197211151324080
    197211151329510    197211151404050
    197211151409470    197211151520100
    197211151525520    197211151600070
    197211151605490    197211151716090
    197211151721510    197211151832100
    197211151837520    197211151841400
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (b-1-72-sc.335_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197211092135000    197211100315000
    197211100325000    197211110450000
    197211110500000    197211111410000
    197211111425000    197211111450000
    197211111500000    197211121320000
    197211121330000    197211121820000
    197211121855000    197211140540000
    197211140600000    197211141225000
    197211141235000    197211141955000
    197211142330000    197211150605000
    197211150615000    197211150640000
    197211150650000    197211151830000
    197211151900000    197211162100000
    197211162140000    197211162320000
    197211162330000    197211162330000
    197211170020000    197211170030000
    197211170040000    197211170155000
    197211170205000    197211170210000
    197211170220000    197211170450000
    197211170515000    197211170845000
    197211170930000    197211171645000
    197211171730000    197211172350000
    197211180000000    197211180005000
    197211180020000    197211211430000
    197211211510000    197211220140000
    197211220150000    197211222255000
    197211222305000    197211222330000
    197211222345000    197211230200000
    197211230210000    197211230530000
    197211230600000    197211240935000
    197211241005000    197211241030000
    197211241600000    197211241900000
    197211241930000    197211242000000
    197211262130000    197211262245000
    197211262315000    197211270830000
    197211270900000    197211271530000
    197211271600000    197211271600000
    197211271630000    197211271630000
    197211271700000    197211271700000
    197211282200000    197211291530000
    197211302250000    197212021455000
    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 B-1-72-SC data set <http://walrus.wr.usgs.gov/infobank/b/b172sc/html/b-1-72-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/b/b172sc/html/b-1-72-sc.nav.html>

Data format: ASCII Size: 0.2
Network links: <http://walrus.wr.usgs.gov/infobank/b/b172sc/html/b-1-72-sc.grav.html>

Data format: ASCII Size: 0.1
Network links: <http://walrus.wr.usgs.gov/infobank/b/b172sc/html/b-1-72-sc.mag.html>

Data format: ASCII Size: 0.3
Network links: <http://walrus.wr.usgs.gov/infobank/b/b172sc/html/b-1-72-sc.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>

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