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What does this data set describe?

Title:
Geophysical data of field activity K-2-81-NP in Northern Pacific from 07/29/1981 to 08/24/1981
Abstract:
Geophysical data (bathymetry, gravity, magnetics) of field activity K-2-81-NP in Northern Pacific from 07/29/1981 to 08/24/1981, <http://walrus.wr.usgs.gov/infobank/k/k281np/html/k-2-81-np.meta.html>.
Supplemental_Information:

Equipment Used -
bathymetry
gravity
magnetics

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 K-2-81-NP in Northern Pacific from 07/29/1981 to 08/24/1981: 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: 151.82822
    East_Bounding_Coordinate: 172.78847
    North_Bounding_Coordinate: 19.99959
    South_Bounding_Coordinate: 5.35852

  3. What does it look like?

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

    Beginning_Date: 29-Jul-1981
    Ending_Date: 24-Aug-1981
    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/k/k281np/grav/k-2-81-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 k-2-81-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/k/k281np/mag/k-2-81-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/k/k281np/bath/k-2-81-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 (k-2-81-np.050 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198107292304000    198107292304000
    198107300132000    198107300132000
    198107300226000    198107300226000
    198107300320000    198107300320000
    198107300351520    198107300418029
    198107300423350    198107300445550
    198107300453400    198107300603490
    198107300610000    198107300644390
    198107300649451    198108010245000
    198108010250250    198108010302150
    198108010307400    198108050055000
    198108050144000    198108050144000
    198108050230000    198108050230000
    198108050418000    198108050418000
    198108050524000    198108050524000
    198108050614000    198108050614000
    198108050758000    198108050758000
    198108050920000    198108050920000
    198108051000000    198108082210400
    198108111554000    198108240201000
    198108240306000    198108240306000
    198108240342000    198108240342000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (k-2-81-np.160_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198107300700000    198107301100000
    198107301135000    198107311115000
    198107311125000    198108010240000
    198108010335000    198108010505000
    198108010515000    198108011240000
    198108011340000    198108030435000
    198108030445000    198108040835000
    198108040845000    198108040855000
    198108040930000    198108050055000
    198108051005000    198108082210000
    198108111555000    198108132130000
    198108132240000    198108240155000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Magnetics Data (k-2-81-np.220_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198107300807000    198107301606000
    198107310032000    198107310116000
    198107310130000    198108010038000
    198108010308000    198108011806000
    198108011839000    198108012053000
    198108020343000    198108021833000
    198108021904000    198108021944000
    198108031320000    198108040148000
    198108040440000    198108041027000
    198108041300000    198108042102000
    198108051157000    198108061854000
    198108061936000    198108081250000
    198108081302000    198108081746000
    198108081753000    198108082210000
    198108111554000    198108120625000
    198108121359000    198108150208000
    198108150240000    198108150714000
    198108151553000    198108170721000
    198108171306000    198108182106000
    198108190013000    198108191029000
    198108200352000    198108210335000
    198108211036000    198108232000000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (k-2-81-np.325_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198107300351520    198107300445550
    198107300456570    198107300821170
    198107300833020    198107301305460
    198107301315500    198107301844260
    198107301855140    198107301855140
    198107301907209    198107301907209
    198107301918390    198107302030029
    198107302042170    198107302042170
    198107302056480    198107302105000
    198107302115330    198107310445150
    198107310456400    198107310943451
    198107310956040    198107310956040
    198107311006420    198107311452510
    198107311504070    198107311504070
    198107311515000    198107311523059
    198107311534089    198107311943260
    198107311954440    198108010120280
    198108010130360    198108010215190
    198108010229590    198108010229590
    198108010241059    198108010915220
    198108010927050    198108011946470
    198108011956580    198108012209040
    198108012219190    198108012358040
    198108020010460    198108020010460
    198108020023179    198108020113209
    198108020126220    198108020126220
    198108020137320    198108020301520
    198108020312360    198108020321089
    198108020334340    198108020941119
    198108020951540    198108021007190
    198108021018190    198108021332010
    198108021342230    198108021448410
    198108021500310    198108021500310
    198108021512340    198108030006269
    198108030020451    198108030020451
    198108030035150    198108030035150
    198108030048310    198108030048310
    198108030100490    198108030100490
    198108030115380    198108030137280
    198108030149410    198108030445260
    198108030456290    198108030629470
    198108030644000    198108030907451
    198108030921310    198108030940050
    198108030950410    198108031033070
    198108031044220    198108031053530
    198108031104280    198108031104280
    198108031116170    198108031116170
    198108031129420    198108031129420
    198108031140260    198108031140260
    198108031151550    198108031151550
    198108031203020    198108031203020
    198108031213040    198108031250209
    198108031300280    198108031300280
    198108031312130    198108042047000
    198108042137200    198108042349400
    198108051144400    198108060803000
    198108060835000    198108081502400
    198108081517400    198108082210400
    198108111554200    198108140627200
    198108140639000    198108151236400
    198108151247400    198108171042000
    198108171053000    198108232144100
    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 K-2-81-NP data set <http://walrus.wr.usgs.gov/infobank/k/k281np/html/k-2-81-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: 1.4
Network links: <http://walrus.wr.usgs.gov/infobank/k/k281np/html/k-2-81-np.nav.html>

Data format: ASCII Size: 0.5
Network links: <http://walrus.wr.usgs.gov/infobank/k/k281np/html/k-2-81-np.grav.html>

Data format: ASCII Size: 1.5
Network links: <http://walrus.wr.usgs.gov/infobank/k/k281np/html/k-2-81-np.mag.html>

Data format: ASCII Size: 1.2
Network links: <http://walrus.wr.usgs.gov/infobank/k/k281np/html/k-2-81-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 12:41:49 2013