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What does this data set describe?

Title:
Geophysical data of field activity C-7-74-IN in Port Louis, Mauritius--> Goa, India from 05/17/1974 to 06/17/1974
Abstract:
Chief Scientist: T. Aitken. Geophysical data (transitsatellite, 3dot5khz, 12khz, magnetics, gravity) of field activity C-7-74-IN in Port Louis, Mauritius--> Goa, India from 05/17/1974 to 06/17/1974, <http://walrus.wr.usgs.gov/infobank/c/c774in/html/c-7-74-in.meta.html>.
Supplemental_Information:

Equipment Used -
transitsatellite
3dot5khz 3.5 khz bathymetry
12khz 12 khz bathymetry
magnetics Proton Precession magnetometer
gravity Graf-Askania GSS2 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-7-74-IN in Port Louis, Mauritius--> Goa, India from 05/17/1974 to 06/17/1974: 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: 55.91597
    East_Bounding_Coordinate: 73.71249
    North_Bounding_Coordinate: 22.88890
    South_Bounding_Coordinate: -20.07933

  3. What does it look like?

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

    Beginning_Date: 17-May-1974
    Ending_Date: 17-Jun-1974
    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: Port Louis, Mauritius--> Goa, India
      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?

    T. Aitken (Chief Scientist)

  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-7-74-in.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/c774in/grav/c-7-74-in.160_050
    /bear/programs/edit/automerge/automerge
    
    Input was...
    01/30/1998 clint c-7-74-in.160
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Free Air Anomaly data
    
    Input was...
    01/30/1998 clint c-7-74-in.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-7-74-in.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/c774in/mag/c-7-74-in.220_050
    /bear/programs/edit/automerge/automerge
    
    01/30/1998 clint c-7-74-in.220
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Edited magnetics data
    
    01/30/1998 clint c-7-74-in.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/c774in/bath/c-7-74-in.320_050
    /bear/programs/edit/automerge/automerge
    
    Input was...
    01/30/1998 clint c-7-74-in.320
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Edited bathymetry data with corrected depths
    
    Input was...
    01/30/1998 clint c-7-74-in.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-7-74-in.050 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197405171244000    197405280918000
    197405281232000    197405281232000
    197405281715000    197405292000000
    197405292016000    197405292016000
    197405292132000    197405292132000
    197405292328000    197405292328000
    197405300112000    197405300112000
    197405300230000    197405311800000
    197405311828000    197405311828000
    197405311948000    197405311948000
    197405312134000    197405312134000
    197405312338000    197405312338000
    197406010042000    197406020710000
    197406021018000    197406021018000
    197406021200000    197406021200000
    197406021216000    197406031810000
    197406031824000    197406031824000
    197406031850000    197406031850000
    197406032052000    197406051317000
    197406051544000    197406051544000
    197406051712000    197406051712000
    197406051936000    197406061357000
    197406061944000    197406061944000
    197406062000000    197406081742000
    197406081800000    197406081800000
    197406081940000    197406081940000
    197406082332000    197406100905000
    197406101056000    197406101056000
    197406101240000    197406101240000
    197406101338000    197406101338000
    197406101458000    197406130608000
    197406130621000    197406130621000
    197406130716000    197406130716000
    197406131018000    197406131018000
    197406131200000    197406141713000
    197406141724000    197406141728000
    197406142256000    197406142256000
    197406150015000    197406151300000
    197406151315000    197406151322000
    197406151510000    197406151510000
    197406151612000    197406151612000
    197406151836000    197406170400000
    197406170500000    197406170500000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (c-7-74-in.160_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197405171300000    197405171300000
    197405171320000    197405180420000
    197405180440000    197405180840000
    197405181300000    197405181300000
    197405181320000    197405181430000
    197405181450000    197405190730000
    197405190750000    197405191230000
    197405191800000    197405200040000
    197405200110000    197405200630000
    197405200700000    197405200730000
    197405200800000    197405201300000
    197405202000000    197405202340000
    197405210000000    197405210850000
    197405210910000    197405211040000
    197405211110000    197405212010000
    197405212030000    197405220950000
    197405221650000    197405221830000
    197405221900000    197405221910000
    197405221930000    197405230220000
    197405230240000    197405230320000
    197405230340000    197405230640000
    197405230700000    197405231000000
    197405231910000    197405240130000
    197405240150000    197405240200000
    197405240220000    197405241500000
    197405241930000    197405250100000
    197405250120000    197405252350000
    197405260100000    197405261330000
    197405262240000    197405270720000
    197405270750000    197405271410000
    197405271440000    197405280720000
    197405280800000    197405280910000
    197405281720000    197405292000000
    197405300250000    197405300250000
    197405300320000    197405310750000
    197405310900000    197405310900000
    197405311010000    197405311430000
    197405311500000    197405311700000
    197405311720000    197405311800000
    197406010100000    197406011410000
    197406011720000    197406020700000
    197406021230000    197406030120000
    197406030140000    197406030700000
    197406030720000    197406031340000
    197406031410000    197406031810000
    197406032100000    197406040220000
    197406040240000    197406040530000
    197406040605000    197406040700000
    197406040820000    197406040900000
    197406041200000    197406041750000
    197406041810000    197406041940000
    197406042000000    197406042023000
    197406042110000    197406042110000
    197406042130000    197406042150000
    197406042220000    197406051300000
    197406052010000    197406060810000
    197406060850000    197406061340000
    197406062030000    197406062040000
    197406062105000    197406070020000
    197406070110000    197406070510000
    197406070600000    197406071100000
    197406071120000    197406071150000
    197406071210000    197406071750000
    197406071820000    197406071910000
    197406071930000    197406080040000
    197406080100000    197406080940000
    197406081010000    197406081500000
    197406081530000    197406081740000
    197406090010000    197406092240000
    197406092300000    197406100550000
    197406100610000    197406100848000
    197406100900000    197406100900000
    197406101540000    197406111010000
    197406111040000    197406111110000
    197406111130000    197406111230000
    197406111310000    197406112300000
    197406112320000    197406120030000
    197406120050000    197406120730000
    197406120750000    197406120800000
    197406120820000    197406120840000
    197406120900000    197406121150000
    197406121220000    197406121340000
    197406121400000    197406121740000
    197406121829000    197406121829000
    197406121850000    197406130600000
    197406131200000    197406131200000
    197406131220000    197406131740000
    197406131820000    197406131820000
    197406131840000    197406140310000
    197406140330000    197406141400000
    197406141430000    197406141710000
    197406150040000    197406151300000
    197406151920000    197406151930000
    197406151950000    197406152110000
    197406152130000    197406161020000
    197406161040000    197406170100000
    197406170120000    197406170130000
    197406170150000    197406170230000
    197406170250000    197406170310000
    197406170330000    197406170400000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Magnetics Data (c-7-74-in.221_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197405171250000    197405180820000
    197405180828000    197405180848000
    197405181300000    197405181300000
    197405181310000    197405181850000
    197405181900000    197405191230000
    197405191740000    197405191950000
    197405192000000    197405192250000
    197405192300000    197405201300000
    197405201945000    197405220930000
    197405221635000    197405231000000
    197405231915000    197405241500000
    197405241920000    197405252300000
    197405252315000    197405252350000
    197405260100000    197405261330000
    197405262210000    197405271530000
    197405271536000    197405280320000
    197405280330000    197405280855000
    197405281720000    197405291945000
    197405292000000    197405292000000
    197405300240000    197405311800000
    197406010055000    197406010105000
    197406010120000    197406010600000
    197406010630000    197406011950000
    197406012000000    197406020640000
    197406021230000    197406021830000
    197406021840000    197406030300000
    197406030310000    197406030552000
    197406030600000    197406031800000
    197406032100000    197406050132000
    197406050140000    197406051300000
    197406051945000    197406060230000
    197406060830000    197406061340000
    197406062005000    197406071920000
    197406080050000    197406081740000
    197406090000000    197406092240000
    197406100730000    197406100850000
    197406101500000    197406120030000
    197406120705000    197406130600000
    197406131225000    197406140315000
    197406140605000    197406141710000
    197406150020000    197406151300000
    197406151840000    197406170100000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (c-7-74-in.320_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197405171248000    197405180906000
    197405181300000    197405190918000
    197405190930000    197405191242000
    197405191730000    197405201312000
    197405201942000    197405221006000
    197405221636000    197405231000000
    197405231900000    197405241512000
    197405241918000    197405252354000
    197405260100000    197405261400000
    197405262212000    197405280854000
    197405281718000    197405292000000
    197405300230000    197405300700000
    197405300712000    197405301030000
    197405301042000    197405311800000
    197406010042000    197406020636000
    197406021230000    197406031800000
    197406032054000    197406051312000
    197406051936000    197406061354000
    197406062000000    197406081730000
    197406082332000    197406100848000
    197406100900000    197406100900000
    197406101500000    197406130554000
    197406131212000    197406141712000
    197406141724000    197406141724000
    197406150015000    197406151300000
    197406151836000    197406170400000
    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-7-74-IN data set <http://walrus.wr.usgs.gov/infobank/c/c774in/html/c-7-74-in.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/c774in/html/c-7-74-in.nav.html>

Data format: ASCII Size: 0.3
Network links: <http://walrus.wr.usgs.gov/infobank/c/c774in/html/c-7-74-in.grav.html>

Data format: ASCII Size: 0.4
Network links: <http://walrus.wr.usgs.gov/infobank/c/c774in/html/c-7-74-in.mag.html>

Data format: ASCII Size: 0.4
Network links: <http://walrus.wr.usgs.gov/infobank/c/c774in/html/c-7-74-in.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>)


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