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What does this data set describe?

Title:
Geophysical data of field activity S-3-75-EG in Eastern Gulf of Alaska from 05/05/1975 to 05/17/1975
Abstract:
Chief Scientist: Bruce Molnia. Geophysical data (gradiometer, 3dot5khz, sparker, minisparker, magnetics) of field activity S-3-75-EG in Eastern Gulf of Alaska from 05/05/1975 to 05/17/1975, <http://walrus.wr.usgs.gov/infobank/s/s375eg/html/s-3-75-eg.meta.html>.
Supplemental_Information:

Equipment Used -
gradiometer
3dot5khz
sparker single-channel 25-joule
minisparker 6 kj
magnetics magnetometer
Publications -
Molnia, B.F., Carlson, P.R., and Wright, L.H., 1978, Geophysical data from the 1975
cruise of the NOAA ship Surveyor in northern Gulf of Alaska: U.S. Geological Survey
Open-File Report 78-209, 42 p.<BR>
<HR>
Carlson, Paul R., Bruns, Terry R., Molnia, Bruce F., and Schwab, William C., 1982,
Submarine valleys in the northeastern Gulf of Alaska; characteristics and probable origin:
Marine Geology, v. 47, no. 3-4, p. 217-242. <BR>
<HR>
Carlson, Paul R., and Schwab, William C., 1982, Northern Gulf of Alaska environmental geology,
in Bruns, T. R., ed., Hydrocarbon resource report for proposed OCS lease sale 88; southeastern
Alaska, northern Gulf of Alaska, Cook Inlet, and Shelikof Strait, Alaska: U.S. Geological
Survey Open-File Report 82-0928, p. 73-86.<BR>
<HR>
Carlson, Paul R., and Molnia, Bruce F., 1976, Submarine mass movement of Holocene sediments
seaward of the Copper River: U.S. Geological Survey Circular 0733, p. 55-56.
<HR>
Molnia, Bruce F., and Carlson, Paul R., 1976, Surface sedimentary units of the northern
Gulf of Alaska continental shelf: U.S. Geological Survey Circular 0733, p. 56-57.<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/>, 20130106, Geophysical data of field activity S-3-75-EG in Eastern Gulf of Alaska from 05/05/1975 to 05/17/1975: 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: -152.37498
    East_Bounding_Coordinate: -138.48499
    North_Bounding_Coordinate: 60.62500
    South_Bounding_Coordinate: 57.72999

  3. What does it look like?

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

    Beginning_Date: 05-May-1975
    Ending_Date: 17-May-1975
    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: Eastern Gulf of Alaska
      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:
    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?

    Bruce Molnia (Chief Scientist, USGS Western Region); Paul Fuller (Dafe Coordinator, USGS Western Region); Gordon Tanner (Electronic Technician, USGS Western Region); Steve Davenport (Watchstander, USGS Western Region); Anne Hickling (Watchstander, USGS Western Region); Sam Johnson (Watchstander, USGS Western Region); Milton Randall (Watchstander, USGS Western Region); Harry Smith (Watchstander, USGS Western Region); Don Van Nieuwenhuise (Watchstander, USGS Western Region); Jeff Yarus (Watchstander, 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: 16-Aug-2000 (process 1 of 3)
    Navigation Data 
    Converted to time format with year at start.

02/10/86 KAYE DUA0:[DATA.C175EG.N]S175EG.052;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
08/16/00 DAN MOSIER SPLIT THIS SET FROM S175EG

    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: 14-Sep-2000 (process 2 of 3)
    Gravity Data 
    09/14/2000 clint s-3-75-eg.161_052
/infobank/bear/programs/edit/automerge/automerge

Input was...
Converted to time format with year at start.

01/16/86 BARB DUA0:[DATA.S175EG.G]S175EG.161;
DRB0:[DRS.REFMT]REFORMAT.EXE;5

08/16/00 DAN MOSIER SPLIT THIS SET FROM S175EG GRAV

Input was...
Converted to time format with year at start.

02/10/86 KAYE DUA0:[DATA.C175EG.N]S175EG.052;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
08/16/00 DAN MOSIER SPLIT THIS SET FROM S175EG

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: 14-Sep-2000 (process 3 of 3)
    Bathymetry Data 
    09/14/2000 clint s-3-75-eg.305_052
/infobank/bear/programs/edit/automerge/automerge

Input was...
Converted to time format with year at start.

02/20/86 BECKIE DISK$USERDISK:[BECKIE.TEMP]S175EG.305;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
I believe this file was hand-digetized in meters by
NOAA.
08/16/00 DAN MOSIER SPLIT THIS SET FROM S175EG

Input was...
Converted to time format with year at start.

02/10/86 KAYE DUA0:[DATA.C175EG.N]S175EG.052;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
08/16/00 DAN MOSIER SPLIT THIS SET FROM S175EG

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:
    Molnia, B.F., Carlson, P.R., and Wright, L.H., 1978, Geophysical data from the 1975 cruise of the NOAA ship Surveyor in northern Gulf of Alaska: U.S. Geological Survey Open-File Report 78-209, 42 p. Carlson, Paul R., Bruns, Terry R., Molnia, Bruce F., and Schwab, William C., 1982, Submarine valleys in the northeastern Gulf of Alaska; characteristics and probable origin: Marine Geology, v. 47, no. 3-4, p. 217-242. Carlson, Paul R., and Schwab, William C., 1982, Northern Gulf of Alaska environmental geology, in Bruns, T. R., ed., Hydrocarbon resource report for proposed OCS lease sale 88; southeastern Alaska, northern Gulf of Alaska, Cook Inlet, and Shelikof Strait, Alaska: U.S. Geological Survey Open-File Report 82-0928, p. 73-86. Carlson, Paul R., and Molnia, Bruce F., 1976, Submarine mass movement of Holocene sediments seaward of the Copper River: U.S. Geological Survey Circular 0733, p. 55-56. Molnia, Bruce F., and Carlson, Paul R., 1976, Surface sedimentary units of the northern Gulf of Alaska continental shelf: U.S. Geological Survey Circular 0733, p. 56-57.


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 (s-3-75-eg.052 [SINS])
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
197505052358000    197505060400000
197505060600000    197505061200000
197505061327000    197505070044000
197505070206000    197505071718000
197505071933000    197505080706000
197505080854000    197505080910000
197505081052000    197505081052000
197505081300000    197505081333000
197505081455000    197505081910000
197505082128000    197505100430000
197505100600000    197505130140420
197505130333000    197505131950300
197505132120300    197505132140300
197505132306000    197505140056000
197505140240000    197505140536000
197505140720000    197505151750000
197505160130000    197505161005000
197505161305000    197505171610000
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
Gravity Data (s-3-75-eg.161_052)
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
197505060042000    197505112137420
197505120013000    197505162313000
197505162320000    197505171604120
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
Bathymetry Data (s-3-75-eg.305_052)
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
197505060000000    197505061215000
197505061300000    197505061450000
197505061530000    197505071740000
197505071955000    197505080543000
197505080550000    197505080800000
197505080820000    197505090650000
197505090707000    197505100625000
197505100633000    197505102120000
197505102132000    197505120335000
197505120350000    197505130950000
197505131010000    197505131010000
197505131020000    197505131025000
197505131035000    197505131040000
197505131050000    197505131055000
197505131105000    197505131110000
197505131120000    197505131125000
197505131135000    197505131140000
197505131150000    197505140240000
197505140305000    197505142138000
197505142147000    197505142147000
197505142200000    197505151815000
197505151835000    197505151845000
197505160105000    197505161040000
197505161100000    197505161225000
197505161330000    197505170345000
197505170355000    197505171610000
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 S-3-75-EG data set <http://walrus.wr.usgs.gov/infobank/s/s375eg/html/s-3-75-eg.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: 0.0
Network links: <http://walrus.wr.usgs.gov/infobank/s/s375eg/html/s-3-75-eg.nav.html>

Data format: ASCII Size: 1.4
Network links: <http://walrus.wr.usgs.gov/infobank/s/s375eg/html/s-3-75-eg.grav.html>

Data format: ASCII Size: 0.2
Network links: <http://walrus.wr.usgs.gov/infobank/s/s375eg/html/s-3-75-eg.bath.html>

  • Cost to order the data: None

    • Who wrote the metadata?

    Dates:
    Last modified: 06-Jan-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 Jan 6 07:23:23 2013