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What does this data set describe?

Title:
Data of field activity V-3-72-IN in Port Louis, Mauritius--> Port Louis, Mauritius from 01/20/1972 to 02/14/1972
Abstract:
Chief Scientist: H. Kahle. Data (bathymetry, gravity, magnetics, meters, navigation) of field activity V-3-72-IN in Port Louis, Mauritius--> Port Louis, Mauritius from 01/20/1972 to 02/14/1972, <http://walrus.wr.usgs.gov/infobank/v/v372in/html/v-3-72-in.meta.html>.
Supplemental_Information:

Equipment Used -
bathymetry data directory exists
gravity data directory exists
magnetics data directory exists
meters data directory exists
navigation data directory exists
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/>, 20131030, Data of field activity V-3-72-IN in Port Louis, Mauritius--> Port Louis, Mauritius from 01/20/1972 to 02/14/1972: 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: 57.16080
    East_Bounding_Coordinate: 76.65170
    North_Bounding_Coordinate: -14.72190
    South_Bounding_Coordinate: -32.67550

  3. What does it look like?

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

    Beginning_Date: 20-Jan-1972
    Ending_Date: 14-Feb-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: Port Louis, Mauritius--> Port Louis, Mauritius
      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?

    H. Kahle (Chief Scientist, Lamont-Doherty)

  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 v-3-72-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  /tiger/v/v372in/grav/v-3-72-in.160_050
    /bear/programs/edit/automerge/automerge
    
    Input was...
    01/30/1998 clint v-3-72-in.160
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Free Air Anomaly data
    
    Input was...
    01/30/1998 clint v-3-72-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 v-3-72-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  /tiger/v/v372in/mag/v-3-72-in.220_050
    /bear/programs/edit/automerge/automerge
    
    01/30/1998 clint v-3-72-in.220
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Edited magnetics data
    
    01/30/1998 clint v-3-72-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  /tiger/v/v372in/bath/v-3-72-in.320_050
    /bear/programs/edit/automerge/automerge
    
    Input was...
    01/30/1998 clint v-3-72-in.320
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Edited bathymetry data with corrected depths
    
    Input was...
    01/30/1998 clint v-3-72-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 (v-3-72-in.050 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197201201224000    197202141352000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (v-3-72-in.160_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197201201230000    197201201335000
    197201201440000    197201201555000
    197201201615000    197201201815000
    197201201850000    197201210220000
    197201210250000    197201210330000
    197201210350000    197201211000000
    197201211330000    197201212040000
    197201212120000    197201220115000
    197201220135000    197201220230000
    197201220340000    197201220940000
    197201221510000    197201230310000
    197201230340000    197201230900000
    197201230940000    197201231450000
    197201231740000    197201241115000
    197201241540000    197201242035000
    197201242110000    197201250600000
    197201250640000    197201250900000
    197201251410000    197201251615000
    197201251700000    197201261040000
    197201261100000    197201261110000
    197201261820000    197201270020000
    197201270310000    197201270330000
    197201270350000    197201271450000
    197201271730000    197201272305000
    197201272355000    197201281230000
    197201281250000    197201281730000
    197201282020000    197201282055000
    197201282150000    197201290440000
    197201290510000    197201290820000
    197201290915000    197201291435000
    197201291500000    197201291645000
    197201291720000    197201291755000
    197201291830000    197201300030000
    197201300110000    197201300150000
    197201300240000    197201300735000
    197201300830000    197201301650000
    197201301705000    197201302010000
    197201302050000    197201310925000
    197201311220000    197201311715000
    197201311830000    197201312110000
    197202010020000    197202010240000
    197202010340000    197202011140000
    197202011210000    197202011210000
    197202011240000    197202011440000
    197202011730000    197202011900000
    197202011915000    197202012240000
    197202012300000    197202020130000
    197202020205000    197202021100000
    197202021120000    197202021425000
    197202021720000    197202021900000
    197202021930000    197202022340000
    197202030010000    197202030225000
    197202030250000    197202031410000
    197202031630000    197202040030000
    197202040110000    197202041220000
    197202041520000    197202041735000
    197202041820000    197202050430000
    197202050450000    197202051410000
    197202051450000    197202051750000
    197202052040000    197202060000000
    197202060016000    197202060835000
    197202060920000    197202061235000
    197202061310000    197202061630000
    197202061700000    197202061715000
    197202061750000    197202061750000
    197202062100000    197202070000000
    197202070110000    197202070200000
    197202070320000    197202070340000
    197202070430000    197202071610000
    197202071920000    197202080500000
    197202080520000    197202080850000
    197202081450000    197202081600000
    197202081640000    197202081710000
    197202081740000    197202082150000
    197202082220000    197202082250000
    197202082310000    197202082340000
    197202090010000    197202090020000
    197202090040000    197202090150000
    197202090240000    197202090245000
    197202090300000    197202090350000
    197202090710000    197202090900000
    197202091350000    197202091530000
    197202101230000    197202102240000
    197202102310000    197202110450000
    197202110530000    197202110710000
    197202110800000    197202110900000
    197202110940000    197202111630000
    197202111700000    197202111750000
    197202111830000    197202111950000
    197202112330000    197202120700000
    197202120720000    197202120820000
    197202120900000    197202120930000
    197202121350000    197202121410000
    197202121430000    197202121620000
    197202121710000    197202121840000
    197202121930000    197202122330000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Magnetics Data (v-3-72-in.221_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197201201230000    197201201600000
    197201202006000    197201210400000
    197201210412000    197201211042000
    197201211312000    197201220930000
    197201221506000    197201222012000
    197201222024000    197201231500000
    197201231606000    197201241100000
    197201241430000    197201250000000
    197201250030000    197201250930000
    197201251336000    197201261100000
    197201261800000    197201270000000
    197201270300000    197201271500000
    197201271706000    197201281730000
    197201282006000    197201290100000
    197201290418000    197201290936000
    197201290948000    197201291006000
    197201291018000    197201291100000
    197201291112000    197201310930000
    197201311206000    197201312030000
    197202010006000    197202010818000
    197202010830000    197202010930000
    197202010942000    197202011142000
    197202011200000    197202011200000
    197202011224000    197202011430000
    197202011706000    197202021430000
    197202021700000    197202031400000
    197202031606000    197202041230000
    197202041500000    197202051730000
    197202052018000    197202060324000
    197202060354000    197202061630000
    197202062048000    197202071236000
    197202071312000    197202071600000
    197202072006000    197202072048000
    197202072100000    197202080018000
    197202080030000    197202080754000
    197202081436000    197202081554000
    197202081606000    197202081630000
    197202081700000    197202120118000
    197202120142000    197202120930000
    197202121330000    197202131800000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (v-3-72-in.320_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197201201236000    197201211036000
    197201211300000    197201212030000
    197201212042000    197201221000000
    197201221430000    197201230730000
    197201230742000    197201231500000
    197201231606000    197201240330000
    197201240342000    197201241130000
    197201241348000    197201251136000
    197201251306000    197201261124000
    197201261800000    197201270024000
    197201270230000    197201271530000
    197201271654000    197201281730000
    197201282000000    197201292118000
    197201292129000    197201310930000
    197201311200000    197201312124000
    197201312354000    197202011500000
    197202011706000    197202020054000
    197202020118000    197202020230000
    197202020242000    197202021430000
    197202021650000    197202022100000
    197202022118000    197202031442000
    197202031606000    197202041248000
    197202041448000    197202051800000
    197202052018000    197202061800000
    197202062024000    197202071600000
    197202071830000    197202081006000
    197202081206000    197202081230000
    197202081436000    197202101112000
    197202101124000    197202121042000
    197202121318000    197202132200000
    197202132212000    197202141348000
    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 V-3-72-IN data set <http://walrus.wr.usgs.gov/infobank/v/v372in/html/v-3-72-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: 0.3
Network links: <http://walrus.wr.usgs.gov/infobank/v/v372in/html/v-3-72-in.nav.html>

Data format: ASCII Size: 0.2
Network links: <http://walrus.wr.usgs.gov/infobank/v/v372in/html/v-3-72-in.grav.html>

Data format: ASCII Size: 0.3
Network links: <http://walrus.wr.usgs.gov/infobank/v/v372in/html/v-3-72-in.mag.html>

Data format: ASCII Size: 0.4
Network links: <http://walrus.wr.usgs.gov/infobank/v/v372in/html/v-3-72-in.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 08:11:23 2013