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What does this data set describe?

Title:
Geophysical data of field activity G-18-71-NP in Northern Pacific from 05/29/1971 to 07/19/1971
Abstract:
Chief Scientist: Roland Von Huene. Geophysical data (transitsatellite, 12khz, magnetics, airgun, bathymetry) of field activity G-18-71-NP in Northern Pacific from 05/29/1971 to 07/19/1971, <http://walrus.wr.usgs.gov/infobank/g/g1871np/html/g-18-71-np.meta.html>.
Supplemental_Information:

Equipment Used -
transitsatellite
12khz 12 khz bathymetry
magnetics Varian MFD Proton Precession magnetometer
airgun 20 to 300 cu. in. airgun
bathymetry 10 to 300 hz EDO PSR rec
Notes -
Scripps Institution of Oceanography
Publications -
Kulm, La Verne D., Prince, Roger A., and Snavely, Parke D., Jr., 1973, Appendix I, Part A;
Site survey of the northern Oregon continental margin and Astoria Fan, in Musich, Lillian F.,
and Weser, Oscar E., eds., Initial reports of the Deep Sea Drilling Project, covering Leg 18
of the cruises of the drilling vessel Glomar Challenger, Honolulu, Hawaii to Kodiak, Alaska
May-July 1971: Initial Reports of the Deep Sea Drilling Project, v. 18, p. 979-987.<BR>
<HR>
Core Data from the Deep Sea Drilling Project, Leg 18:
<A HREF="<http://www.ngdc.noaa.gov/mgg/geology/dsdp/data/18/leg18.htm>"><http://www.ngdc.noaa.gov/mgg/geology/dsdp/data/18/leg18.htm>

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/>, 20130331, Geophysical data of field activity G-18-71-NP in Northern Pacific from 05/29/1971 to 07/19/1971: 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: -158.00000
    East_Bounding_Coordinate: -124.00000
    North_Bounding_Coordinate: 58.00000
    South_Bounding_Coordinate: 21.00000

  3. What does it look like?

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

    Beginning_Date: 29-May-1971
    Ending_Date: 19-Jul-1971
    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:
    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?

    Roland Von Huene (Chief Scientist, USGS Western Region)

  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 3)
    Navigation Data 
    01/30/1998 clint g-18-71-np.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: 20-Jun-2012 (process 2 of 3)
    Magnetics Data 
    06/20/2012 carolyn g-18-71-np.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/g/g1871np/mag/g-18-71-np.220_050
/bear/programs/edit/automerge/automerge

01/30/1998 clint g-18-71-np.220
/bear/programs/ngdc/unrefngdc/unrefngdc
Edited magnetics data

01/30/1998 clint g-18-71-np.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 3 of 3)
    Bathymetry Data 
    10/31/1998  /tiger/g/g1871np/bath/g-18-71-np.320_050
/bear/programs/edit/automerge/automerge

Input was...
01/30/1998 clint g-18-71-np.320
/bear/programs/ngdc/unrefngdc/unrefngdc
Edited bathymetry data with corrected depths

Input was...
01/30/1998 clint g-18-71-np.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:

    Other_Citation_Details:
    Kulm, La Verne D., Prince, Roger A., and Snavely, Parke D., Jr., 1973, Appendix I, Part A; Site survey of the northern Oregon continental margin and Astoria Fan, in Musich, Lillian F., and Weser, Oscar E., eds., Initial reports of the Deep Sea Drilling Project, covering Leg 18 of the cruises of the drilling vessel Glomar Challenger, Honolulu, Hawaii to Kodiak, Alaska May-July 1971: Initial Reports of the Deep Sea Drilling Project, v. 18, p. 979-987. Core Data from the Deep Sea Drilling Project, Leg 18: <A HREF="<http://www.ngdc.noaa.gov/mgg/geology/dsdp/data/18/leg18.htm>"><http://www.ngdc.noaa.gov/mgg/geology/dsdp/data/18/leg18.htm>


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 (g-18-71-np.050 [SINS])
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
197105291200000    197106050417000
197106062150000    197106090034000
197106090040000    197106090054000
197106090100000    197106100251000
197106130800000    197106131925000
197106132000000    197106141624000
197106190122000    197106190122000
197106190135000    197106191539000
197106211305000    197106212330000
197106220000000    197106220032000
197106221125000    197106240127000
197106272300000    197107010458000
197107061005000    197107061100000
197107061115000    197107061725000
197107061735000    197107061820000
197107061830000    197107061907000
197107080700000    197107082103000
197107112200000    197107120401000
197107152347000    197107152347000
197107152356000    197107160444000
197107160453000    197107160453000
197107181920000    197107190330000
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
Magnetics Data (g-18-71-np.221_050)
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
197105291300000    197106050417000
197106062220000    197106071640000
197106071720000    197106090010000
197106090105000    197106100251000
197106130800000    197106131925000
197106132000000    197106141620000
197106190135000    197106191539000
197106211305000    197106212250000
197106221130000    197106240125000
197106272315000    197106292150000
197106292300000    197107010430000
197107080700000    197107082103000
197107112200000    197107120401000
197107160000000    197107160425000
197107181920000    197107190330000
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
Bathymetry Data (g-18-71-np.320_050)
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
197105291200000    197105291450000
197105291500000    197105291540000
197105291555000    197105291750000
197105291800000    197105300135000
197105300205000    197105302210000
197105302220000    197105302325000
197105302340000    197105310250000
197105310300000    197105311505000
197105311515000    197105311530000
197105311550000    197106010100000
197106010115000    197106011935000
197106012000000    197106012320000
197106020020000    197106020030000
197106020040000    197106020245000
197106020300000    197106020420000
197106020430000    197106020700000
197106020955000    197106021000000
197106021015000    197106021850000
197106021900000    197106022140000
197106022200000    197106022200000
197106022350000    197106040000000
197106040010000    197106040100000
197106040120000    197106040335000
197106040350000    197106040430000
197106040440000    197106040450000
197106040500000    197106050340000
197106050355000    197106050417000
197106062150000    197106062225000
197106062240000    197106062245000
197106062255000    197106071825000
197106071835000    197106080345000
197106080355000    197106090034000
197106090040000    197106090054000
197106090100000    197106090235000
197106090300000    197106090700000
197106090730000    197106092145000
197106092155000    197106100000000
197106100020000    197106100250000
197106130800000    197106131905000
197106132000000    197106141145000
197106141155000    197106141624000
197106190122000    197106190122000
197106190142000    197106190145000
197106190156000    197106190900000
197106190910000    197106191240000
197106191250000    197106191345000
197106191355000    197106191405000
197106191415000    197106191539000
197106211305000    197106211500000
197106211510000    197106211510000
197106211520000    197106211905000
197106211915000    197106212330000
197106220000000    197106220032000
197106221125000    197106221132000
197106221141000    197106221145000
197106221200000    197106222350000
197106230000000    197106231830000
197106231840000    197106240127000
197106272300000    197106282310000
197106282345000    197106290210000
197106290220000    197106290415000
197106290425000    197106292135000
197106292145000    197106301100000
197106301120000    197106301645000
197106301655000    197107010400000
197107010415000    197107010458000
197107061005000    197107061100000
197107061115000    197107061725000
197107061735000    197107061820000
197107061830000    197107061907000
197107080705000    197107080850000
197107080905000    197107082103000
197107112200000    197107112205000
197107112215000    197107112245000
197107112300000    197107120210000
197107120245000    197107120340000
197107120350000    197107120401000
197107152347000    197107152347000
197107152356000    197107152356000
197107160002000    197107160042000
197107160051000    197107160051000
197107160100000    197107160444000
197107160453000    197107160453000
197107181925000    197107190330000
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 G-18-71-NP data set <http://walrus.wr.usgs.gov/infobank/g/g1871np/html/g-18-71-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/g/g1871np/html/g-18-71-np.nav.html>

Data format: ASCII Size: 0.3
Network links: <http://walrus.wr.usgs.gov/infobank/g/g1871np/html/g-18-71-np.mag.html>

Data format: ASCII Size: 0.3
Network links: <http://walrus.wr.usgs.gov/infobank/g/g1871np/html/g-18-71-np.bath.html>

  • Cost to order the data: None

    • Who wrote the metadata?

    Dates:
    Last modified: 31-Mar-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 Sun Mar 31 07:13:25 2013