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What does this data set describe?

Title:
Geophysical data of field activity I-6-77-NP in Off west coast Mexico from 06/19/1977 to 06/27/1977
Abstract:
Geophysical data (bathymetry, magnetics, navigation) of field activity I-6-77-NP in Off west coast Mexico from 06/19/1977 to 06/27/1977, <http://walrus.wr.usgs.gov/infobank/i/i677np/html/i-6-77-np.meta.html>.
Supplemental_Information:

Equipment Used -
bathymetry data directory exists
magnetics data directory exists
navigation data directory exists

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 I-6-77-NP in Off west coast Mexico from 06/19/1977 to 06/27/1977: 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: -99.36800
    East_Bounding_Coordinate: -94.22480
    North_Bounding_Coordinate: 16.35050
    South_Bounding_Coordinate: 14.23070

  3. What does it look like?

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

    Beginning_Date: 19-Jun-1977
    Ending_Date: 27-Jun-1977
    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: Off west coast Mexico
      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:
    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?

  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: 05-Dec-1995 (process 1 of 3)
    Navigation Data
    Converted to time format with year at start.
    
    05/01/86 CLINT DUA0:[DATA.IDAGREEN]I677NP.050;
    DUA0:[DATA.IDAGREEN]TEMP.EXE;
    
    

    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 2 of 3)
    Magnetics Data
    06/20/2012 carolyn i-6-77-np.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/i/i677np/mag/i-6-77-np.200_050
    /bear/programs/edit/automerge/automerge
    
    Converted to time format with year at start.
    
    05/01/86 CLINT DUA0:[DATA.IDAGREEN]I677NP.200;
    DUA0:[DATA.IDAGREEN]TEMP.EXE;
    
    Converted to time format with year at start.
    
    05/01/86 CLINT DUA0:[DATA.IDAGREEN]I677NP.050;
    DUA0:[DATA.IDAGREEN]TEMP.EXE;
    
    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 3 of 3)
    Bathymetry Data
    10/31/1998  /tiger/i/i677np/bath/i-6-77-np.300_050
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    05/01/86 CLINT DUA0:[DATA.IDAGREEN]I677NP.300;
    DUA0:[DATA.IDAGREEN]TEMP.EXE;
    
    Input was...
    Converted to time format with year at start.
    
    05/01/86 CLINT DUA0:[DATA.IDAGREEN]I677NP.050;
    DUA0:[DATA.IDAGREEN]TEMP.EXE;
    
    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 (i-6-77-np.050 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197706191645000    197706241552000
    197706241620000    197706241810000
    197706241900000    197706250000000
    197706250030000    197706250757000
    197706250810000    197706251030000
    197706251045000    197706251425000
    197706251530000    197706251910000
    197706251925000    197706252055000
    197706252115000    197706252115000
    197706252140000    197706252235000
    197706252255000    197706270420000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Magnetics Data (i-6-77-np.220_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197706191645000    197706191750000
    197706191800000    197706191830000
    197706191836000    197706192055000
    197706200000000    197706200835000
    197706201720000    197706210235000
    197706210925000    197706212005000
    197706220210000    197706221400000
    197706251050000    197706251255000
    197706252310000    197706252315000
    197706252335000    197706261045000
    197706261100000    197706261700000
    197706261725000    197706270115000
    197706270125000    197706270420000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (i-6-77-np.300_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197706191645000    197706192005000
    197706192135000    197706192230000
    197706192240000    197706192255000
    197706192315000    197706192320000
    197706192330000    197706200040000
    197706200050000    197706200055000
    197706200105000    197706200635000
    197706200650000    197706200700000
    197706200710000    197706200935000
    197706201840000    197706201950000
    197706202000000    197706210345000
    197706210400000    197706210445000
    197706210555000    197706210715000
    197706210725000    197706210725000
    197706210735000    197706210800000
    197706210810000    197706210810000
    197706210840000    197706210910000
    197706210920000    197706210955000
    197706211050000    197706211135000
    197706211200000    197706211330000
    197706211340000    197706211355000
    197706211405000    197706211845000
    197706211855000    197706211855000
    197706211905000    197706212045000
    197706212100000    197706212140000
    197706212150000    197706212210000
    197706220200000    197706220850000
    197706220930000    197706221425000
    197706221435000    197706221735000
    197706221805000    197706222035000
    197706222050000    197706230045000
    197706230140000    197706231340000
    197706231350000    197706231400000
    197706231410000    197706231415000
    197706231425000    197706231615000
    197706231630000    197706231915000
    197706231925000    197706232040000
    197706232050000    197706232310000
    197706232330000    197706232345000
    197706240000000    197706240045000
    197706240100000    197706240825000
    197706240840000    197706240935000
    197706241455000    197706241545000
    197706241620000    197706241810000
    197706241900000    197706250000000
    197706250030000    197706250135000
    197706250145000    197706250755000
    197706250810000    197706251005000
    197706251020000    197706251020000
    197706251030000    197706251030000
    197706251045000    197706251055000
    197706251105000    197706251105000
    197706251115000    197706251115000
    197706251125000    197706251425000
    197706251530000    197706251910000
    197706251925000    197706252055000
    197706252115000    197706252115000
    197706252140000    197706252210000
    197706252220000    197706252235000
    197706252255000    197706252255000
    197706252310000    197706252310000
    197706252320000    197706260005000
    197706260015000    197706260040000
    197706260110000    197706260115000
    197706260130000    197706260430000
    197706260525000    197706260535000
    197706260600000    197706260610000
    197706260640000    197706260650000
    197706260700000    197706260700000
    197706260710000    197706260805000
    197706260820000    197706260825000
    197706260845000    197706260855000
    197706260905000    197706260905000
    197706260915000    197706260930000
    197706260940000    197706261825000
    197706261835000    197706261845000
    197706261900000    197706270050000
    197706270105000    197706270115000
    197706270135000    197706270300000
    197706270315000    197706270420000
    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 I-6-77-NP data set <http://walrus.wr.usgs.gov/infobank/i/i677np/html/i-6-77-np.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: 0.1
Network links: <http://walrus.wr.usgs.gov/infobank/i/i677np/html/i-6-77-np.nav.html>

Data format: ASCII Size: 0.1
Network links: <http://walrus.wr.usgs.gov/infobank/i/i677np/html/i-6-77-np.mag.html>

Data format: ASCII Size: 0.1
Network links: <http://walrus.wr.usgs.gov/infobank/i/i677np/html/i-6-77-np.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 12:20:42 2013