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What does this data set describe?

Title:
Geophysical data of field activity C-2-73-NA in Bridgetown, Barbados--> Abidjan, Ivory Coast from 11/01/1973 to 11/30/1973
Abstract:
Chief Scientist: Steve Eittreim. Geophysical data (transitsatellite, 3dot5khz, magnetics, gravity) of field activity C-2-73-NA in Bridgetown, Barbados--> Abidjan, Ivory Coast from 11/01/1973 to 11/30/1973, <http://walrus.wr.usgs.gov/infobank/c/c273na/html/c-2-73-na.meta.html>.
Supplemental_Information:

Equipment Used -
transitsatellite
3dot5khz 3.5 khz bathymetry
magnetics magnetometer
gravity Bell gravity
Notes -
Lamont-Doherty
<http://www.ldeo.columbia.edu/>

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 C-2-73-NA in Bridgetown, Barbados--> Abidjan, Ivory Coast from 11/01/1973 to 11/30/1973: 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: -59.59580
    East_Bounding_Coordinate: -4.06330
    North_Bounding_Coordinate: 13.37650
    South_Bounding_Coordinate: 3.22090

  3. What does it look like?

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

    Beginning_Date: 01-Nov-1973
    Ending_Date: 30-Nov-1973
    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: Bridgetown, Barbados--> Abidjan, Ivory Coast
      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?

    Steve Eittreim (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: 30-Jan-1998 (process 1 of 4)
    Navigation Data
    01/30/1998 clint c-2-73-na.050
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Integrated navigation (SINS) data
    
    

    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/c/c273na/grav/c-2-73-na.160_050
    /bear/programs/edit/automerge/automerge
    
    Input was...
    01/30/1998 clint c-2-73-na.160
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Free Air Anomaly data
    
    Input was...
    01/30/1998 clint c-2-73-na.050
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Integrated navigation (SINS) data
    
    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 c-2-73-na.221_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/magred1111/magred1111.for
    Using geodetic coordinate system (Earth shape approximated by spheriod)
    with altitude 0.0 km (for sea level).
    
    Input was...
    10/31/1998  /lion/c/c273na/mag/c-2-73-na.220_050
    /bear/programs/edit/automerge/automerge
    
    01/30/1998 clint c-2-73-na.220
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Edited magnetics data
    
    01/30/1998 clint c-2-73-na.050
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Integrated navigation (SINS) data
    
    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/c/c273na/bath/c-2-73-na.320_050
    /bear/programs/edit/automerge/automerge
    
    Input was...
    01/30/1998 clint c-2-73-na.320
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Edited bathymetry data with corrected depths
    
    Input was...
    01/30/1998 clint c-2-73-na.050
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Integrated navigation (SINS) data
    
    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 (c-2-73-na.050 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197311011229000    197311250050000
    197311250154000    197311291455000
    197311291632000    197311300000000
    197311300105000    197311300601000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (c-2-73-na.160_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197311011320000    197311011400000
    197311011500000    197311011600000
    197311011640000    197311011700000
    197311020600000    197311020610000
    197311020730000    197311020820000
    197311020840000    197311020950000
    197311021010000    197311021030000
    197311021520000    197311021830000
    197311022210000    197311022230000
    197311031510000    197311031630000
    197311031820000    197311032200000
    197311040830000    197311040940000
    197311041030000    197311041330000
    197311041410000    197311041420000
    197311041450000    197311041530000
    197311041600000    197311042030000
    197311042100000    197311042330000
    197311050010000    197311050240000
    197311050330000    197311051200000
    197311051220000    197311051740000
    197311051810000    197311060650000
    197311060710000    197311060800000
    197311060830000    197311060910000
    197311060930000    197311060950000
    197311061030000    197311061040000
    197311061110000    197311061120000
    197311100630000    197311100650000
    197311100720000    197311100820000
    197311100840000    197311100920000
    197311101800000    197311102010000
    197311111500000    197311111530000
    197311111550000    197311111550000
    197311161540000    197311161610000
    197311170440000    197311170755000
    197311170830000    197311171140000
    197311172040000    197311180000000
    197311180110000    197311180410000
    197311180430000    197311180620000
    197311182130000    197311182210000
    197311182250000    197311182340000
    197311230730000    197311240850000
    197311240910000    197311241020000
    197311241900000    197311241930000
    197311241950000    197311250040000
    197311250200000    197311250230000
    197311250250000    197311251310000
    197311251340000    197311252200000
    197311252220000    197311252250000
    197311252330000    197311260700000
    197311260720000    197311260910000
    197311260950000    197311261340000
    197311261410000    197311261800000
    197311261820000    197311270210000
    197311270250000    197311270310000
    197311270400000    197311271010000
    197311271040000    197311271050000
    197311271200000    197311271400000
    197311271420000    197311271430000
    197311271450000    197311271530000
    197311271600000    197311271710000
    197311271750000    197311272350000
    197311280030000    197311280240000
    197311280340000    197311280930000
    197311281000000    197311281700000
    197311281720000    197311281830000
    197311281900000    197311281920000
    197311282010000    197311290930000
    197311290950000    197311291100000
    197311291120000    197311291150000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Magnetics Data (c-2-73-na.221_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197311011300000    197311031040000
    197311031510000    197311031630000
    197311031645000    197311031650000
    197311031800000    197311031800000
    197311031810000    197311040000000
    197311040105000    197311061400000
    197311061610000    197311070735000
    197311070755000    197311070835000
    197311070900000    197311070920000
    197311071025000    197311072200000
    197311080620000    197311080855000
    197311081130000    197311081240000
    197311081445000    197311081520000
    197311081545000    197311081750000
    197311081800000    197311082230000
    197311090550000    197311090820000
    197311090830000    197311091000000
    197311091508000    197311091508000
    197311091515000    197311091612000
    197311100100000    197311100925000
    197311101750000    197311102135000
    197311111345000    197311111720000
    197311111730000    197311120230000
    197311121900000    197311122330000
    197311130915000    197311131700000
    197311132115000    197311132330000
    197311140830000    197311141630000
    197311150225000    197311150700000
    197311151500000    197311152145000
    197311160030000    197311160440000
    197311170405000    197311170525000
    197311170815000    197311171130000
    197311172000000    197311180000000
    197311180105000    197311180620000
    197311181411000    197311181420000
    197311181430000    197311181555000
    197311182015000    197311211315000
    197311211340000    197311241030000
    197311241830000    197311250050000
    197311250155000    197311251155000
    197311251205000    197311251725000
    197311251800000    197311260930000
    197311261020000    197311281600000
    197311281615000    197311291405000
    197311291645000    197311300000000
    197311300105000    197311300530000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (c-2-73-na.320_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197311011230000    197311031648000
    197311031800000    197311040000000
    197311040106000    197311051130000
    197311051142000    197311060848000
    197311060900000    197311060912000
    197311060924000    197311060930000
    197311060942000    197311061036000
    197311061048000    197311061412000
    197311061536000    197311072242000
    197311080600000    197311081418000
    197311081430000    197311082330000
    197311090200000    197311090200000
    197311090518000    197311090833000
    197311090845000    197311091030000
    197311091500000    197311091642000
    197311100030000    197311100945000
    197311101710000    197311102206000
    197311102330000    197311102330000
    197311110230000    197311110230000
    197311110330000    197311110330000
    197311110426000    197311110618000
    197311111300000    197311111300000
    197311111336000    197311120300000
    197311121136000    197311121336000
    197311121348000    197311121406000
    197311121900000    197311121900000
    197311121912000    197311130018000
    197311130909000    197311131741000
    197311132109000    197311140012000
    197311140818000    197311141710000
    197311150212000    197311150812000
    197311151500000    197311152215000
    197311160100000    197311160512000
    197311160558000    197311160558000
    197311160611000    197311160611000
    197311160623000    197311160623000
    197311160930000    197311160930000
    197311161218000    197311161218000
    197311161354000    197311161354000
    197311161406000    197311161642000
    197311170400000    197311170636000
    197311170651000    197311171212000
    197311171948000    197311180000000
    197311180106000    197311180700000
    197311181400000    197311181617000
    197311182006000    197311200918000
    197311200930000    197311211036000
    197311211048000    197311220712000
    197311220724000    197311220730000
    197311220742000    197311220830000
    197311220842000    197311220942000
    197311220954000    197311230306000
    197311230321000    197311231342000
    197311231354000    197311241100000
    197311241800000    197311250048000
    197311250154000    197311290548000
    197311290600000    197311291430000
    197311291640000    197311300000000
    197311300106000    197311300600000
    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 C-2-73-NA data set <http://walrus.wr.usgs.gov/infobank/c/c273na/html/c-2-73-na.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/c/c273na/html/c-2-73-na.nav.html>

Data format: ASCII Size: 0.1
Network links: <http://walrus.wr.usgs.gov/infobank/c/c273na/html/c-2-73-na.grav.html>

Data format: ASCII Size: 0.4
Network links: <http://walrus.wr.usgs.gov/infobank/c/c273na/html/c-2-73-na.mag.html>

Data format: ASCII Size: 0.4
Network links: <http://walrus.wr.usgs.gov/infobank/c/c273na/html/c-2-73-na.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>

    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 Tue Oct 29 08:02:04 2013