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What does this data set describe?

Title:
Geophysical data of field activity M-2C-70-NP in Northern Pacific from 09/26/1970 to 10/29/1970
Abstract:
Geophysical data (magnetics, gravity, bathymetry) of field activity M-2C-70-NP in Northern Pacific from 09/26/1970 to 10/29/1970, <http://walrus.wr.usgs.gov/infobank/m/m2c70np/html/m-2c-70-np.meta.html>.
Supplemental_Information:

Equipment Used -
magnetics
gravity
bathymetry

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 M-2C-70-NP in Northern Pacific from 09/26/1970 to 10/29/1970: 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: 145.61954
    East_Bounding_Coordinate: 179.98637
    North_Bounding_Coordinate: 10.84255
    South_Bounding_Coordinate: -0.11509

  3. What does it look like?

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

    Beginning_Date: 26-Sep-1970
    Ending_Date: 29-Oct-1970
    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: Northern Pacific
      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?

  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: 06-Dec-1995 (process 1 of 4)
    Navigation Data
    Converted to time format with year at start.
    
    03/03/86 KAYE DUA0:[DATA.<cruise_id>.N]<cruise_id>.050;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
     Extracted from data acquired from NGDC.
    
    

    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/m/m2c70np/grav/m-2c-70-np.160_050
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    02/20/86 BARB DUA0:[DATA.<CRUISE_ID>.G]<CRUISE_ID>.160;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    
    extracted from data acquired from NGDC
    
    Input was...
    Converted to time format with year at start.
    
    03/03/86 KAYE DUA0:[DATA.<cruise_id>.N]<cruise_id>.050;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
     Extracted from data acquired from NGDC.
    
    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 m-2c-70-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/m/m2c70np/mag/m-2c-70-np.200_050
    /bear/programs/edit/automerge/automerge
    
    Converted to time format with year at start.
    
    03/03/86 CAROLYN DRS$DATA:[<cruise_id>.M]<cruise_id>.200;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    extracted by Clint from data acquired from NGDC
    
    Converted to time format with year at start.
    
    03/03/86 KAYE DUA0:[DATA.<cruise_id>.N]<cruise_id>.050;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
     Extracted from data acquired from NGDC.
    
    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/m/m2c70np/bath/m-2c-70-np.325_050
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    03/03/86 BECKIE DRS$DATA:[<cruise_id>.B]<cruise_id>.325;
    DRB0:[DRS.NGDC]UNREFNGDC.EXE;5
    NGDC files sometimes have only 2_way_travel_time in
    which case the format is the same but without corr_depth.
    This file was extracted by C. Steele from data acquired from NGDC.
    
    Input was...
    Converted to time format with year at start.
    
    03/03/86 KAYE DUA0:[DATA.<cruise_id>.N]<cruise_id>.050;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
     Extracted from data acquired from NGDC.
    
    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 (m-2c-70-np.050 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197009260142540    197009282224059
    197009282250000    197009282250000
    197009290034000    197009290034000
    197009290115000    197009290314420
    197009290336000    197009290336000
    197009290358000    197009290358000
    197009290445000    197010012229540
    197010022154000    197010052142000
    197010052328000    197010052328000
    197010061632000    197010061632000
    197010061758000    197010061758000
    197010061944000    197010061944000
    197010062050000    197010062050000
    197010062232000    197010062232000
    197010070000000    197010090650360
    197010210126420    197010262118000
    197010262200000    197010262200000
    197010270030000    197010270030000
    197010270218000    197010270218000
    197010270528000    197010270528000
    197010270630000    197010270630000
    197010270653000    197010281339059
    197010281400000    197010291900000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (m-2c-70-np.160_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197009260145000    197009261515000
    197009270245000    197009282000000
    197009291100000    197009302000000
    197009302030000    197009302215000
    197010022200000    197010050745000
    197010050815000    197010050915000
    197010050945000    197010051345000
    197010210130000    197010220345000
    197010221100000    197010230645000
    197010230915000    197010250830000
    197010251330000    197010262015000
    197010270715000    197010280545000
    197010281530000    197010291900000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Magnetics Data (m-2c-70-np.220_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197010040002000    197010040221000
    197010040243000    197010040407000
    197010040449000    197010040449000
    197010040511000    197010040511000
    197010040536000    197010040536000
    197010040600000    197010040600000
    197010040623000    197010040755000
    197010040819000    197010040855000
    197010040920000    197010041101000
    197010041125000    197010041156000
    197010041217000    197010041217000
    197010041241000    197010041259000
    197010041330000    197010041330000
    197010041351000    197010041420000
    197010041445000    197010041445000
    197010041508000    197010041526000
    197010041554000    197010041625000
    197010041652000    197010042354000
    197010050020000    197010050028000
    197010050054000    197010050054000
    197010050131000    197010050147000
    197010050209000    197010050453000
    197010050529000    197010050552000
    197010050622000    197010050910000
    197010050937000    197010051237000
    197010051339000    197010051339000
    197010051430000    197010051430000
    197010051458000    197010051458000
    197010051536000    197010051536000
    197010051601000    197010051601000
    197010051638000    197010051638000
    197010051729000    197010051906000
    197010070128000    197010070234000
    197010070258000    197010070614000
    197010070636000    197010070723000
    197010070750000    197010071342000
    197010071403000    197010071403000
    197010071427000    197010071450000
    197010071525000    197010071555000
    197010071627000    197010071851000
    197010071912000    197010071912000
    197010071937000    197010071937000
    197010072013000    197010072049000
    197010072114000    197010072148000
    197010072213000    197010072213000
    197010072235000    197010072235000
    197010072329000    197010072329000
    197010072353000    197010080103000
    197010080124000    197010080141000
    197010080211000    197010080211000
    197010080234000    197010080234000
    197010080307000    197010080307000
    197010080330000    197010080330000
    197010080407000    197010080407000
    197010080451000    197010080451000
    197010080513000    197010080513000
    197010080539000    197010080554000
    197010080624000    197010080801000
    197010080829000    197010080829000
    197010080907000    197010080907000
    197010080949000    197010080949000
    197010081032000    197010081050000
    197010081111000    197010081139000
    197010081207000    197010081239000
    197010081304000    197010081332000
    197010081359000    197010081505000
    197010081533000    197010081610000
    197010081648000    197010081648000
    197010081725000    197010081744000
    197010081807000    197010081807000
    197010081834000    197010081856000
    197010081920000    197010081934000
    197010082013000    197010082104000
    197010082128000    197010082128000
    197010082150000    197010082150000
    197010082222000    197010082313000
    197010082354000    197010090222000
    197010090248000    197010090248000
    197010090323000    197010090323000
    197010090351000    197010090351000
    197010090443000    197010090454000
    197010090515000    197010090533000
    197010090557000    197010090557000
    197010090626000    197010090626000
    197010090648000    197010090648000
    197010210150000    197010210150000
    197010210224000    197010210224000
    197010210306000    197010210306000
    197010210348000    197010210348000
    197010210430000    197010210430000
    197010210600000    197010210600000
    197010210642000    197010210700000
    197010210930000    197010210930000
    197010211130000    197010211130000
    197010211300000    197010211300000
    197010211430000    197010211430000
    197010211530000    197010211530000
    197010211730000    197010211730000
    197010211918000    197010211918000
    197010212030000    197010212030000
    197010212118000    197010212118000
    197010212148000    197010212148000
    197010212240000    197010212240000
    197010212354000    197010212354000
    197010220100000    197010220100000
    197010220230000    197010220230000
    197010220342000    197010220342000
    197010221052000    197010221052000
    197010221130000    197010221130000
    197010221400000    197010221400000
    197010221500000    197010221500000
    197010221600000    197010221600000
    197010221630000    197010221630000
    197010221830000    197010221830000
    197010222000000    197010222000000
    197010222042000    197010222042000
    197010222106000    197010222118000
    197010222142000    197010222159000
    197010222230000    197010222230000
    197010222348000    197010222348000
    197010230018000    197010230130000
    197010230200000    197010230200000
    197010230300000    197010230330000
    197010230418000    197010230418000
    197010230500000    197010230500000
    197010230600000    197010230600000
    197010230700000    197010230700000
    197010230930000    197010230930000
    197010231000000    197010231000000
    197010231042000    197010231042000
    197010231200000    197010231200000
    197010231242000    197010231242000
    197010231336000    197010231336000
    197010231430000    197010231448000
    197010231600000    197010231600000
    197010231630000    197010231630000
    197010231700000    197010231700000
    197010231730000    197010231730000
    197010231830000    197010231830000
    197010231854000    197010231912000
    197010231953000    197010232000000
    197010232030000    197010232130000
    197010232200000    197010232212000
    197010232236000    197010232236000
    197010232300000    197010232300000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (m-2c-70-np.325_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197009260142540    197009261844480
    197009270000000    197009282224059
    197009290115000    197009290314420
    197009290445000    197010012229540
    197010022200000    197010052127239
    197010070000000    197010090650360
    197010210126420    197010262059480
    197010270700480    197010281339059
    197010281400000    197010291859540
    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 M-2C-70-NP data set <http://walrus.wr.usgs.gov/infobank/m/m2c70np/html/m-2c-70-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: 0.2
Network links: <http://walrus.wr.usgs.gov/infobank/m/m2c70np/html/m-2c-70-np.nav.html>

Data format: ASCII Size: 0.1
Network links: <http://walrus.wr.usgs.gov/infobank/m/m2c70np/html/m-2c-70-np.grav.html>

Data format: ASCII Size: 0.0
Network links: <http://walrus.wr.usgs.gov/infobank/m/m2c70np/html/m-2c-70-np.mag.html>

Data format: ASCII Size: 0.2
Network links: <http://walrus.wr.usgs.gov/infobank/m/m2c70np/html/m-2c-70-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)
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