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What does this data set describe?

Title:
Multi-Channel Seismic and Seismic Refraction data of field activity EW9415 (E-15-94-SC) in Onshore/offshre Mojave Desert-Los Angeles Basin-San Clemente Island from 10/13/1994 to 10/21/1994
Abstract:
Lamont-Doherty Earth Observatory. Chief Scientist: Tom Brocher. Multi-Channel Seismic and Seismic Refraction data (airgun, 24channel) of field activity EW9415 (E-15-94-SC) in Onshore/offshre Mojave Desert-Los Angeles Basin-San Clemente Island from 10/13/1994 to 10/21/1994, <http://walrus.wr.usgs.gov/infobank/e/e1594sc/html/e-15-94-sc.meta.html>.
Supplemental_Information:

Equipment Used -
airgun large air-gun array
24channel multi-channel streamer and acquisition system on ewing
Publications -
Brocher, Thomas M., Clayton, Robert W., Klitgord, Kim D., Bohannon, Robert G., Sliter, Ray W., McRaney, John K., Gardner, James V., and Keene, J.B., 1995,
Multichannel seismic-reflection profiling on the R/V Maurice Ewing during the Los Angeles Region Seismic Experiment (LARSE), California:
U.S. Geological Survey Open-File Report 95-0228, 70 p., 3 sheets, URL:
<A HREF="<http://geopubs.wr.usgs.gov/open-file/of95-228/of95-228.pdf>" target="OF"><http://geopubs.wr.usgs.gov/open-file/of95-228/of95-228.pdf>
&nbsp;&nbsp;
Brocher, T.M., Klitgord, Kim D., Bohannon, R.G., Sliter, R.W., Clayton, Robert W., and ten Brink, Uri S., 1995,
Overview of shipboard work during the Los Angeles Region Seismic Experiment (LARSE):
American Geophysical Union Eos, Transactions, v. 76, no. 46, Supplement, p. 347.

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, Multi-Channel Seismic and Seismic Refraction data of field activity EW9415 (E-15-94-SC) in Onshore/offshre Mojave Desert-Los Angeles Basin-San Clemente Island from 10/13/1994 to 10/21/1994: 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: -119.71742
    East_Bounding_Coordinate: -117.66454
    North_Bounding_Coordinate: 34.01343
    South_Bounding_Coordinate: 32.62936

  3. What does it look like?

    <http://walrus.wr.usgs.gov/infobank/e/e1594sc/html/e-15-94-sc.nav.gif> (GIF)
    Trackline map of E-15-94-SC
    <http://walrus.wr.usgs.gov/infobank/e/e1594sc/html/e-15-94-sc.grav.gif> (GIF)
    Gravity data trackline map of E-15-94-SC
    <http://walrus.wr.usgs.gov/infobank/e/e1594sc/html/e-15-94-sc.mag.gif> (GIF)
    Magnetics data trackline map of E-15-94-SC
    <http://walrus.wr.usgs.gov/infobank/e/e1594sc/html/e-15-94-sc.bath.gif> (GIF)
    Bathymetry data trackline map of E-15-94-SC
    <http://walrus.wr.usgs.gov/infobank/e/e1594sc/html/e-15-94-sc.seis.gif> (GIF)
    Seismic shot point data trackline map of E-15-94-SC

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

    Beginning_Date: 13-Oct-1994
    Ending_Date: 21-Oct-1994
    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:
      Onshore/offshre Mojave Desert-Los Angeles Basin-San Clemente Island
      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 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.
      The flattening of the ellipsoid used is 1/298.257.

      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>
    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?

    Tom Brocher (Chief Scientist)

  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: 11-Oct-2002 (process 1 of 4)
    Navigation Data
    03/12/2002 clint e-15-94-sc.060_n_all
    /infobank/programs/refmt/lamont2daps/lamont2daps
    
    

    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: 12-Mar-2002 (process 2 of 4)
    Gravity Data
    03/12/2002 clint e-15-94-sc.160_060_kss30
    /infobank/programs/refmt/lamont2daps/lamont2daps
    
    

    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 e-15-94-sc.222_060
    
    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...
    03/12/2002 clint e-15-94-sc.220_060
    /infobank/programs/refmt/lamont2daps/lamont2daps
    
    

    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: 12-Mar-2002 (process 4 of 4)
    Bathymetry Data
    03/12/2002 clint e-15-94-sc.320_060
    /infobank/programs/refmt/lamont2daps/lamont2daps
    
    

    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:
    Brocher, Thomas M., Clayton, Robert W., Klitgord, Kim D., Bohannon, Robert G., Sliter, Ray W., McRaney, John K., Gardner, James V., and Keene, J.B., 1995, Multichannel seismic-reflection profiling on the R/V Maurice Ewing during the Los Angeles Region Seismic Experiment (LARSE), California: U.S. Geological Survey Open-File Report 95-0228, 70 p., 3 sheets, URL: <A HREF="<http://geopubs.wr.usgs.gov/open-file/of95-228/of95-228.pdf>" target="OF"><http://geopubs.wr.usgs.gov/open-file/of95-228/of95-228.pdf> &nbsp;&nbsp; Brocher, T.M., Klitgord, Kim D., Bohannon, R.G., Sliter, R.W., Clayton, Robert W., and ten Brink, Uri S., 1995, Overview of shipboard work during the Los Angeles Region Seismic Experiment (LARSE): American Geophysical Union Eos, Transactions, v. 76, no. 46, Supplement, p. 347.



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 (e-15-94-sc.060 [GPS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199410130000000    199410210520000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (e-15-94-sc.160_060_kss30)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199410130000000    199410140539000
    199410140611000    199410140639000
    199410140701000    199410141119000
    199410141151000    199410141519000
    199410141546000    199410141919000
    199410141936000    199410142024000
    199410142056000    199410142139000
    199410142201000    199410142229000
    199410142306000    199410142319000
    199410142351000    199410210518000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Magnetics Data (e-15-94-sc.222_060)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199410132000000    199410181623000
    199410190534000    199410191709000
    199410192004000    199410210439000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (e-15-94-sc.320_060)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199410131522000    199410131911000
    199410131939000    199410142307000
    199410142317000    199410161722000
    199410161752000    199410162012000
    199410162019000    199410180129000
    199410180420000    199410180440000
    199410180449000    199410180454000
    199410180503000    199410180520000
    199410180543000    199410180836000
    199410180857000    199410210520000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Seismic Shots Data (e-15-94-sc.410_060)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199410131849177    199410140541373
    199410141155425    199410151430289
    199410151747107    199410170459094
    199410170517279    199410170517491
    199410170550013    199410181956520
    199410182052555    199410191231414
    199410191329273    199410201644025
    199410201712137    199410201718444
    199410201745128    199410201745128
    199410201828191    199410210431303
    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 EW9415 (E-15-94-SC) data set <http://walrus.wr.usgs.gov/infobank/e/e1594sc/html/e-15-94-sc.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/e/e1594sc/html/e-15-94-sc.nav.html>

Data format: ASCII Size: 2.5
Network links: <http://walrus.wr.usgs.gov/infobank/e/e1594sc/html/e-15-94-sc.grav.html>

Data format: ASCII Size: 0.6
Network links: <http://walrus.wr.usgs.gov/infobank/e/e1594sc/html/e-15-94-sc.mag.html>

Data format: ASCII Size: 1.0
Network links: <http://walrus.wr.usgs.gov/infobank/e/e1594sc/html/e-15-94-sc.bath.html>

Data format: ASCII Size: 3.4
Network links: <http://walrus.wr.usgs.gov/infobank/e/e1594sc/html/e-15-94-sc.seis.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 08:28:36 2013