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What does this data set describe?

Title:
Geophysical data of field activity UGEOLEG_4 (U-4-71-CB) in Venezuela, Caribbean Sea from 08/18/1971 to 10/01/1971
Abstract:
United States Geological Survey, Corpus Christi, Texas. Chief Scientist: Eli Silver. Geophysical data (bathymetry) of field activity UGEOLEG_4 (U-4-71-CB) in Venezuela, Caribbean Sea from 08/18/1971 to 10/01/1971, <http://walrus.wr.usgs.gov/infobank/u/u471cb/html/u-4-71-cb.meta.html>.
Supplemental_Information:

Equipment Used -
bathymetry
Publications -
U471CB Cruise Report exists at Woods Hole

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/>, 20131030, Geophysical data of field activity UGEOLEG_4 (U-4-71-CB) in Venezuela, Caribbean Sea from 08/18/1971 to 10/01/1971: 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: -70.32740
    East_Bounding_Coordinate: -61.72080
    North_Bounding_Coordinate: 18.59110
    South_Bounding_Coordinate: 10.46670

  3. What does it look like?

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

    Beginning_Date: 18-Aug-1971
    Ending_Date: 01-Oct-1971
    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: Venezuela, Caribbean Sea
      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>


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?

    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: 15-Dec-1995 (process 1 of 4)
    Navigation Data
    Converted to time format with year at start.
    
    02/11/86 KAYE DUA0:[DATA.U471CB.N]U471CB.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  /tiger/u/u471cb/grav/u-4-71-cb.161_050
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    04/22/86 CLINT DUA0:[DATA.U471CB]U471CB.160;
    DRB0:[DRS.NGDC]UNREFNGDC.EXE;
    This file came from an NGDC file called U471CB.999.
    Start time is 231/1610 and ends at 274/1500.
    
    03/07/86 BARB DUA0:[DATA.U471CB]U471CB.160
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    
    Input was...
    Converted to time format with year at start.
    
    02/11/86 KAYE DUA0:[DATA.U471CB.N]U471CB.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: 20-Jun-2012 (process 3 of 4)
    Magnetics Data
    06/20/2012 carolyn u-4-71-cb.220_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  /tiger/u/u471cb/mag/u-4-71-cb.200_050
    /bear/programs/edit/automerge/automerge
    
    Converted to time format with year at start.
    
    03/10/86 CAROLYN DRS$DATA:[U471CB.M]U471CB.200;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    was U471CB.220 from 71BKUP
    
    03/22/85 CAROLYN USR$DISK:[DRS.DATA.U4.M]U471CB.220;
    USR$DISK:[DRS.REFMT]REFORMAT.EXE;3
    
    Converted to time format with year at start.
    
    02/11/86 KAYE DUA0:[DATA.U471CB.N]U471CB.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  /tiger/u/u471cb/bath/u-4-71-cb.325_050
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    03/07/86 BECKIE DUA0:[DATA.U471CB]U471CB.325;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    
    Input was...
    Converted to time format with year at start.
    
    02/11/86 KAYE DUA0:[DATA.U471CB.N]U471CB.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: U471CB Cruise Report exists at Woods Hole


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 (u-4-71-cb.050 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197108182340000    197108211520000
    197109051840000    197109100000180
    197109100100000    197109100225000
    197109100241300    197109120930360
    197109120940480    197109131151060
    197109170400000    197109242030000
    197109252300000    197110011620000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (u-4-71-cb.161_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197108190000000    197108192140000
    197108192200000    197108211520000
    197109051840000    197109060110000
    197109060125000    197109061550000
    197109061605000    197109061755000
    197109061830000    197109071205000
    197109071225000    197109071500000
    197109071515000    197109072110000
    197109072140000    197109081200000
    197109081220000    197109082250000
    197109082305000    197109091140000
    197109091200000    197109091200000
    197109091215000    197109091215000
    197109091235000    197109091235000
    197109091250000    197109091250000
    197109091315000    197109092215000
    197109092250000    197109092355000
    197109100105000    197109100225000
    197109100245000    197109100305000
    197109100325000    197109101225000
    197109101245000    197109101710000
    197109101730000    197109110100000
    197109110120000    197109120840000
    197109170400000    197109190250000
    197109190310000    197109210630000
    197109210650000    197109211920000
    197109211940000    197109212010000
    197109212030000    197109240210000
    197109240230000    197109242030000
    197109252300000    197109282100000
    197109282115000    197109300755000
    197109300815000    197110011500000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Magnetics Data (u-4-71-cb.220_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197108190450120    197108190450120
    197108190521000    197108190700120
    197108190721000    197108190950180
    197108191011060    197108191130480
    197108191151480    197108191151480
    197108191330420    197108200920480
    197108200941180    197108211320240
    197109051951360    197109052050060
    197109052110360    197109081809550
    197109081834460    197109081847110
    197109081914060    197109092154420
    197109092233520    197109092358160
    197109100102450    197109100354400
    197109100415050    197109120748400
    197109120815160    197109131149070
    197109170356550    197109212131120
    197109212151300    197109221441180
    197109221540180    197109241720420
    197109260250480    197109261640480
    197109261701180    197109262241120
    197109262320360    197109271510480
    197109271531240    197109271721060
    197109271741420    197110011540420
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (u-4-71-cb.325_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197108182340000    197108192000000
    197108192011000    197108200550000
    197108200601000    197108200830000
    197108200844000    197108200844000
    197108200910000    197108211320000
    197109051940000    197109062039000
    197109062050000    197109071910000
    197109071930000    197109081300000
    197109081320000    197109090810000
    197109090830000    197109090840000
    197109090900000    197109092150000
    197109092210000    197109100000000
    197109100450000    197109100650000
    197109100820000    197109101630000
    197109101650000    197109110230000
    197109110250000    197109120320000
    197109120350000    197109120540000
    197109120600000    197109120930000
    197109120950000    197109131150000
    197109170430000    197109172250000
    197109172310000    197109200010000
    197109200030000    197109241730000
    197109260300000    197109260720000
    197109260740000    197109291250000
    197109291310000    197110011340000
    197110011400000    197110011620000
    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 UGEOLEG_4 (U-4-71-CB) data set <http://walrus.wr.usgs.gov/infobank/u/u471cb/html/u-4-71-cb.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: 0.3
Network links: <http://walrus.wr.usgs.gov/infobank/u/u471cb/html/u-4-71-cb.nav.html>

Data format: ASCII Size: 0.4
Network links: <http://walrus.wr.usgs.gov/infobank/u/u471cb/html/u-4-71-cb.grav.html>

Data format: ASCII Size: 0.5
Network links: <http://walrus.wr.usgs.gov/infobank/u/u471cb/html/u-4-71-cb.mag.html>

Data format: ASCII Size: 0.2
Network links: <http://walrus.wr.usgs.gov/infobank/u/u471cb/html/u-4-71-cb.bath.html>

  • Cost to order the data: None


  • Who wrote the metadata?

    Dates:
    Last modified: 30-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>

    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 Wed Oct 30 07:59:32 2013