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What does this data set describe?

Title:
Geophysical data of field activity W-27-81-CS in Chukchi Sea from 01/01/1981 to 03/31/1981
Abstract:
WesternGeco. Geophysical data (navigation, seismic) of field activity W-27-81-CS in Chukchi Sea from 01/01/1981 to 03/31/1981, <http://walrus.wr.usgs.gov/infobank/w/w2781cs/html/w-27-81-cs.meta.html>.
Supplemental_Information:

Equipment Used -
navigation data directory exists
seismic data directory exists
Notes -
Description of Survey Area 00027: Chukchi Sea 1981<br> <p>
Client Name WesternGeco Multiclient<br>
Coordinate Location Vessel Locations<br>
Spheroid Definition-Survey Clarke 1866 6378206.400 294.978698<br>
Spheroid Def. - Post Plot Clarke 1866 6378206.400 294.978698<br>
Geodetic Datum - Survey NAD 27<br>
Geodetic Datum - Post Plot NAD 27<br>
<p>
Datum Shifts<br>
Projection Type Transverse Mercator<br>
Grid System UTM Zone 3<br>
Grid Units Meters<br>
Central Meridian 165 0 0.000W<br>
Grid Origin 0 0 0.000N165 0 0.000W<br>
Grid Coordinates at Origin 500000.00E 0.00N<br>
Scale Factor 0.9996000000<br>
Scale Factor Defined at 0 0 0.000N165 0 0.000W<br>
<p>

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/>, 20131101, Geophysical data of field activity W-27-81-CS in Chukchi Sea from 01/01/1981 to 03/31/1981: 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: -169.25879
    East_Bounding_Coordinate: -155.43444
    North_Bounding_Coordinate: 72.30981
    South_Bounding_Coordinate: 67.35142

  3. What does it look like?

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

    Beginning_Date: 01-Jan-1981
    Ending_Date: 31-Mar-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: Chukchi Sea
      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:
    Navigation with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/nav.html>
    Entity_and_Attribute_Overview:
    Seismic Shots with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/seis.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: 08-Jul-2004 (process 1 of 1)
    Navigation Data
    07/08/2004 mosier name change to w-27-81-cs.051
    
    03/05/2004 clint w-27-81-cs.062
    /infobank/programs/time/lines2times/l2t
    Global positioning system (GPS) data
    Times are faked.
    
    Input was...
    02/02/2004 clint /infobank/w/w2781cs/nav/w-27-81-cs.061
    /infobank/programs/time/lines2times/lines2times
    Global positioning system (GPS) data
    times are fake
    
    year,day,hr,min,sec,tenths,lat,long,line,shot,easting,northing,depth
    

    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 (w-27-81-cs.051 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198101010000001    198101030004564
    198101040000001    198101060007229
    198101070000001    198101070015042
    198101080000001    198101100018135
    198101110000001    198101110006169
    198101120000001    198101140003072
    198101150000001    198101150006200
    198101160000001    198101170000176
    198101180000001    198101180005507
    198101190000001    198102020000097
    198102030000001    198102030007296
    198102040000001    198102060022365
    198102070000001    198102070008357
    198102080000001    198102090000151
    198102100000001    198102100009528
    198102110000001    198102130017075
    198102140000001    198102140009100
    198102150000001    198102170006202
    198102180000001    198102210017077
    198102220000001    198102220005268
    198102230000001    198102230008288
    198102240000001    198102240005091
    198102250000001    198102250007351
    198102260000001    198102280008431
    198103010000001    198103010008003
    198103020000001    198103030000092
    198103040000001    198103040007234
    198103050000001    198103050013030
    198103060000001    198103060008023
    198103070000001    198103070006095
    198103080000001    198103100005015
    198103110000001    198103110005076
    198103120000001    198103140000414
    198103150000001    198103150007321
    198103160000001    198103160003229
    198103170000001    198103170003520
    198103180000001    198103180003196
    198103190000001    198103190001062
    198103200000001    198103200004226
    198103210000001    198103210008201
    198103220000001    198103240002312
    198103250000001    198103250007351
    198103260000001    198103260004446
    198103270000001    198103290004414
    198103300000001    198103300003347
    198103310000001    198103310004458
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Seismic Shots Data (w-27-81-cs.420_051)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198101010000001    198101010010462
    198101020000001    198101020000162
    198101030000001    198101030004564
    198101040000001    198101040012442
    198101050000001    198101050000005
    198101060000001    198101060007229
    198101070000001    198101070015042
    198101080000001    198101080003431
    198101090000001    198101090000156
    198101100000001    198101100018135
    198101110000001    198101110006169
    198101120000001    198101120018565
    198101130000001    198101130000100
    198101140000001    198101140003072
    198101150000001    198101150006200
    198101160000001    198101160022007
    198101170000001    198101170000176
    198101180000001    198101180005507
    198101190000001    198101190000296
    198101200000001    198101200000296
    198101210000001    198101210000178
    198101220000001    198101220000075
    198101230000001    198101230007366
    198101240000001    198101240000086
    198101250000001    198101260000001
    198101270000001    198101270000159
    198101280000001    198101280013080
    198101290000001    198101290002030
    198101300000001    198101300000075
    198101310000001    198101310000103
    198102010000001    198102020000097
    198102030000001    198102030007296
    198102040000001    198102040000326
    198102050000001    198102050000326
    198102060000001    198102060022365
    198102070000001    198102070008357
    198102080000001    198102080022263
    198102090000001    198102090000151
    198102100000001    198102100009528
    198102110000001    198102110005426
    198102120000001    198102120000151
    198102130000001    198102130017075
    198102140000001    198102140009100
    198102150000001    198102150014398
    198102160000001    198102160000151
    198102170000001    198102170006202
    198102180000001    198102180000097
    198102190000001    198102190000001
    198102200000001    198102200000002
    198102210000001    198102210017077
    198102220000001    198102220005268
    198102230000001    198102230008288
    198102240000001    198102240005091
    198102250000001    198102250007351
    198102260000001    198102260005375
    198102270000001    198102270000159
    198102280000001    198102280008431
    198103010000001    198103010008003
    198103020000001    198103020018101
    198103030000001    198103030000092
    198103040000001    198103040007234
    198103050000001    198103050013030
    198103060000001    198103060008023
    198103070000001    198103070006095
    198103080000001    198103080002237
    198103090000001    198103090000215
    198103100000001    198103100005015
    198103110000001    198103110005076
    198103120000001    198103120006395
    198103130000001    198103130000076
    198103140000001    198103140000414
    198103150000001    198103150007321
    198103160000001    198103160003229
    198103170000001    198103170003520
    198103180000001    198103180003196
    198103190000001    198103190001062
    198103200000001    198103200004226
    198103210000001    198103210008201
    198103220000001    198103220001511
    198103230000001    198103230000074
    198103240000001    198103240002312
    198103250000001    198103250007351
    198103260000001    198103260004446
    198103270000001    198103270001123
    198103280000001    198103280000071
    198103290000001    198103290004414
    198103300000001    198103300003347
    198103310000001    198103310004458
    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 W-27-81-CS data set <http://walrus.wr.usgs.gov/infobank/w/w2781cs/html/w-27-81-cs.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: 2.9
Network links: <http://walrus.wr.usgs.gov/infobank/w/w2781cs/html/w-27-81-cs.nav.html>

Data format: ASCII Size: 2.9
Network links: <http://walrus.wr.usgs.gov/infobank/w/w2781cs/html/w-27-81-cs.seis.html>

  • Cost to order the data: None


  • Who wrote the metadata?

    Dates:
    Last modified: 01-Nov-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 Fri Nov 1 14:11:32 2013