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What does this data set describe?

Title:
Geophysical data of field activity L-8-82-NP in Northern Pacific from 06/18/1982 to 07/08/1982
Abstract:
Chief Scientist: Dave Clague. Geophysical data (3dot5khz, 12khz, courserecorder, gravity, magnetics, chaindredge, airgun) of field activity L-8-82-NP in Northern Pacific from 06/18/1982 to 07/08/1982, <http://walrus.wr.usgs.gov/infobank/l/l882np/html/l-8-82-np.meta.html>.
Supplemental_Information:

Equipment Used -
3dot5khz 3.5 khz bathymetry
12khz 12 khz bathymetry
courserecorder
gravity
magnetics magnetometer
chaindredge
airgun single-channel airgun
Publications -
Hein, James R., Manheim, Frank T., Schwab, William C., Davis, Alice S., Daniel,
Charlaine L., Bouse, Robin M., Morgenson, Lisa A., Sliney, Rosemary E., Clague, David A.,
Tate, George B., and Cacchione, David A., 1985, Geological and geochemical data for
seamounts and associated ferromanganese crusts in and near the Hawaiian, Johnston Island,
and Palmyra Island Exclusive Economic Zone: U.S. Geological Survey Open-File Report 85-0292,
132 p.<BR>

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 L-8-82-NP in Northern Pacific from 06/18/1982 to 07/08/1982: 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: 158.16777
    East_Bounding_Coordinate: -160.29523
    North_Bounding_Coordinate: 54.03292
    South_Bounding_Coordinate: 6.97816

  3. What does it look like?

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

    Beginning_Date: 18-Jun-1982
    Ending_Date: 08-Jul-1982
    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?

    Aaron Dunwald (Chief Engineer); Andy Stevenson (Geologist); Barb Blubaugh (Navigator); Dave Clague (Chief Scientist); Dave Rea (Geophysicist, Univ of Mich); Fernando Martinez (Watchstander, Lamon); Frank Johnson (Chief Mate); Gordon Tanner (Electronics Technician); Jackie Eaby (Navigator); Jill McCarthy (Watchstander); John Dixon (Geologist, Queens Univ); Jon Erickson (Mechanical Technician); Mike Boyle (Electronics Technician); Pat Wilde (Geologist, LBL); Rick Murnane (Watchstander); Rob O'Connor (Watchstander); Robin Bouse (Navigator); Tom Chase (Geologist); Vern Pilgrim (Ship Captain)

  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: 22-Jan-1996 (process 1 of 4)
    Navigation Data
    Converted to time format with year at start.
    
    05/16/85 KAYE USR$DISK:[DRS.DATA.L882NP.N]L882NP.071;
    USR$DISK:[DRS.NAV]EOTCSSP.EXE;
    Output of EOTCSSP on l882np.056
    
    

    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/l/l882np/grav/l-8-82-np.160_071
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    05/16/85 BARB USR$DISK:[DRS.DATA.L882NP.G]L882NP.160;
    USR$DISK:[DRS.GRV]GRAVRED.EXE;1
    
    USR$DISK:[BARB]L882NP.140
    dy,hr,min,sec,tenths,grav_tie,meter_id
    
    05/08/85 BARB USR$DISK:[BARB]L882NP.111;
    USR$DISK:[DRS.REFMT]REFORMAT.EXE;4
    
    05/16/85 KAYE USR$DISK:[DRS.DATA.L882NP.N]L882NP.071;
    USR$DISK:[DRS.NAV]EOTCSSP.EXE;
    
    Input was...
    Converted to time format with year at start.
    
    05/16/85 KAYE USR$DISK:[DRS.DATA.L882NP.N]L882NP.071;
    USR$DISK:[DRS.NAV]EOTCSSP.EXE;
    Output of EOTCSSP on l882np.056
    
    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 l-8-82-np.220_071
    
    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/l/l882np/mag/l-8-82-np.200_071
    /bear/programs/edit/automerge/automerge
    
    Converted to time format with year at start.
    
    12/16/85 CAROLYN DRS$DATA:[L882NP.M]L882NP.200;
    DRB0:[DRS.REFMT]REFORMAT.EXE;4
    was L882NP._.MAGSB1 on TAM146
    was L882NP220.DAT   on VAM146
    
    Converted to time format with year at start.
    
    05/16/85 KAYE USR$DISK:[DRS.DATA.L882NP.N]L882NP.071;
    USR$DISK:[DRS.NAV]EOTCSSP.EXE;
    Output of EOTCSSP on l882np.056
    
    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/l/l882np/bath/l-8-82-np.320_071
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    08/21/85 BECKIE DUA0:[DATA.L882NP.B]L882NP.320;
    DRB0:[DRS.REFMT]REFORMAT.EXE;4
    This file is digitrack bathymetry desampled to 2 minutes.
    
    Input was...
    Converted to time format with year at start.
    
    05/16/85 KAYE USR$DISK:[DRS.DATA.L882NP.N]L882NP.071;
    USR$DISK:[DRS.NAV]EOTCSSP.EXE;
    Output of EOTCSSP on l882np.056
    
    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:

    Other_Citation_Details:
    Hein, James R., Manheim, Frank T., Schwab, William C., Davis, Alice S., Daniel, Charlaine L., Bouse, Robin M., Morgenson, Lisa A., Sliney, Rosemary E., Clague, David A., Tate, George B., and Cacchione, David A., 1985, Geological and geochemical data for seamounts and associated ferromanganese crusts in and near the Hawaiian, Johnston Island, and Palmyra Island Exclusive Economic Zone: U.S. Geological Survey Open-File Report 85-0292, 132 p.



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 (l-8-82-np.071)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198206182152460    198206250240000
    198206250309590    198207081830000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (l-8-82-np.160_071)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198206182153000    198206190903440
    198206190917040    198206201153480
    198206201202320    198206230942480
    198206231006470    198206240328480
    198206240334240    198206250530520
    198206250536160    198206252128440
    198206252321000    198206261717080
    198206261806580    198206270657580
    198206270708260    198206271019020
    198206271158220    198206280757580
    198206280845570    198206291115400
    198206291153080    198207031942320
    198207032114010    198207040857490
    198207040909250    198207061919490
    198207061925210    198207071246050
    198207071258010    198207080427050
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Magnetics Data (l-8-82-np.220_071)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198206190131580    198206190905560
    198206190919040    198206201155480
    198206201204320    198206230945000
    198206231008470    198206240330480
    198206240336240    198206250533040
    198206250538160    198206252130440
    198206252323000    198206261221080
    198206262351420    198206270700020
    198206270710260    198206271021060
    198206271200220    198206271359140
    198206271931000    198206280800020
    198206280847570    198206291117560
    198206291155080    198207031944440
    198207032116210    198207032117050
    198207032132490    198207040900010
    198207040911250    198207061921530
    198207061927210    198207071248170
    198207071300010    198207080429050
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (l-8-82-np.320_071)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198206182156000    198206182156000
    198206182259000    198206190905240
    198206190919060    198206200246360
    198206200252000    198206201154300
    198206201204300    198206211444420
    198206211450300    198206212246300
    198206212252240    198206221620300
    198206221627120    198206230944480
    198206231008480    198206231846480
    198206231852000    198206240330300
    198206240336240    198206242040120
    198206242045540    198206250532540
    198206250538180    198206252129240
    198206252323000    198206261718480
    198206261809000    198206270253120
    198206270258180    198206270658180
    198206270710240    198206271020420
    198206271200240    198206280759180
    198206280847540    198206290211180
    198206290216240    198206291116420
    198206291155060    198206300504300
    198206300510000    198206301354180
    198206301359240    198207010739300
    198207010929300    198207011557300
    198207011603000    198207020921300
    198207020927180    198207021750180
    198207021756000    198207030244060
    198207030249480    198207031942540
    198207032116000    198207040554060
    198207040559300    198207040859300
    198207040911240    198207042346240
    198207042351300    198207050827300
    198207050833240    198207061921060
    198207061927180    198207071246240
    198207071300000    198207080428060
    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 L-8-82-NP data set <http://walrus.wr.usgs.gov/infobank/l/l882np/html/l-8-82-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: 1.9
Network links: <http://walrus.wr.usgs.gov/infobank/l/l882np/html/l-8-82-np.nav.html>

Data format: ASCII Size: 6.8
Network links: <http://walrus.wr.usgs.gov/infobank/l/l882np/html/l-8-82-np.grav.html>

Data format: ASCII Size: 2.3
Network links: <http://walrus.wr.usgs.gov/infobank/l/l882np/html/l-8-82-np.mag.html>

Data format: ASCII Size: 1.0
Network links: <http://walrus.wr.usgs.gov/infobank/l/l882np/html/l-8-82-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 12:51:29 2013