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What does this data set describe?

Title:
Geophysical data of field activity 96030 (W-1-96-NC) in Eureka, CA shelf and slope from 06/29/1996 to 07/08/1996
Abstract:
United States Geological Survey, Menlo Park, California. Chief Scientists: Mike Field, Jim Gardner. Geophysical data (Huntec, SIS1000) of field activity 96030 (W-1-96-NC) in Eureka, CA shelf and slope from 06/29/1996 to 07/08/1996, <http://walrus.wr.usgs.gov/infobank/w/w196nc/html/w-1-96-nc.meta.html>.
Supplemental_Information:

Equipment Used -
Huntec Huntec DTS
SIS1000 SIS-1000 (sidescan)
Notes -
Associated cruises:
<br>
&nbsp;&nbsp;<A HREF="<http://walrus.wr.usgs.gov/infobank/w/w295nc/html/w-2-95-nc.meta.html>">W-2-95-NC</A>
&nbsp;&nbsp;<A HREF="<http://walrus.wr.usgs.gov/infobank/w/w196nc/html/w-1-96-nc.meta.html>">W-1-96-NC</A>
<HR>For raw and intermediate data sets, contact
<a href="<http://walrus.wr.usgs.gov/infobank/programs/html/staff2html/staff/Rani_Nandiwada.html>">Rani Nandiwada</a>
<BR>
From Western Region Marine and Coastal Surveys Bulletin, July 12,
1996...
SUCCESS ON THE HIGH SEAS OFF EUREKA
This week we completed a very successful 9-day survey aboard the RV WECOMA of
the shelf and slope offshore of Eureka in the area designated as the STRATAFORM
area. One of the major goals of the STRATAFORM Project is to gain a better
understanding of how strata are deposited, both in terms of the physical
processes and also in terms of the preserved acoustic signatures, such as
downlap, offlap, and toplap. A complementary goal is to learn how the signatures
combine to form characteristic stratigraphic sequences, such as drapes, aprons,
wedges, and sigmoids. An essential element to gain this understanding is the
analysis and interpretation of geometries of acoustic reflectors in the upper 50
m of the outer shelf and slope. The cruise aboard the WECOMA of Oregon State
University was the second in 10 months devoted to these goals and resulted in
over 1100 km of high-resolution seismic-reflection data using the Huntec DTS and
high-resolution sidescan sonar using the Datasonics SIS-1000 system.
Thanks to an excellent support team from Marfac, and at-sea support
extraodinaire from our John Gann and Tom O'Brien from Woods Hole, we achieved
all of our objectives, despite some LARGE waves and ubiquitous crab pots. The
results are outstanding from our viewpoint, and they should provide lots of new
insights for understanding the late Quaternary development of the shelf and
slope, particularly with regard to channel flows on slopes, the Humboldt
submarine slide, and tectonic deformation of late Quaternary deposits.
The data are being processed and archived at present. If you are interested
in more information, our cruise report, tracklines, and a few images are
available on the web at our marine facility page
---<http://marfac044.wr.usgs.gov>. Look for it to appear in our WUSGS site on
walrus in the very near future. Mike Field amd Jim Gardner
Publications -
W196NC Cruise Report exists at Woods Hole<BR>
Borgeld, J. C., Hughes-Clarke, J. E., Goff, J. A., Mayer, L. A., and Curtis, J.
A, 1999, Acoustic backscatter of the 1995 flood deposit on the Eel shelf, in Nit
trouer, C.A., ed., The Formation of Continental-Margin Strata: Marine Geology, v
. 154, p. 197-210. Retrieved from <http://www.sciencedirect.com/science/journal/>
00253227


Cacchione, D., Wiberg, P., Lynch, J., Irish, J., and Traykovski, P, 1999, Estima
tes of suspended-sediment flux and bedform activity on the inner portion of the
Eel continental shelf, in Nittrouer, C.A., ed., The Formation of Continental-Mar
gin Strata: Marine Geology, v. 154, p. 83-97.


Drake, D. E, 1999, Temporal and spatial variability of the sediment grain-size d
istribution on the Eel shelf; the flood layer of 1995, in Nittrouer, C.A., ed.,
The Formation of Continental-Margin Strata: Marine Geology, v. 154, p. 169-182.
Borgeld, J. C., Hughes-Clarke, J. E., Goff, J. A., Mayer, L. A., and Curtis,
J. A, 1999, Acoustic backscatter of the 1995 flood deposit on the Eel shelf,
in Nittrouer, C.A., ed., The Formation of Continental-Margin Strata: Marine
Geology, v. 154, p. 197-210. Retrieved from
<http://www.sciencedirect.com/science/journal/00253227>


Cacchione, D., Wiberg, P., Lynch, J., Irish, J., and Traykovski, P, 1999,
Estimates of suspended-sediment flux and bedform activity on the inner portion
of the Eel continental shelf, in Nittrouer, C.A., ed., The Formation of
Continental-Margin Strata: Marine Geology, v. 154, p. 83-97.


Drake, D. E, 1999, Temporal and spatial variability of the sediment grain-size
distribution on the Eel shelf; the flood layer of 1995, in Nittrouer, C.A.,
ed., The Formation of Continental-Margin Strata: Marine Geology, v. 154,
p. 169-182.


Field, M. E., Gardner, J. V., and Prior, D. B, 1999, Geometry and significance
of stacked gullies on the northern California slope, in Nittrouer, C.A., ed.,
The Formation of Continental-Margin Strata: Marine Geology, v. 154, p. 271-286.


Gardner, J. V., Prior, D. B., and Field, M. E, 1999, Humboldt slide; a large
shear-dominated retrogressive slope failure, in Nittrouer, C.A., ed., The
Formation of Continental-Margin Strata: Marine Geology, v. 154, p. 323-338.


Goff, J. A., Orange, D. L., Mayer, L. A., and Hughes-Clarke, J. E, 1999,
Detailed investigation of continental shelf morphology using a high-resolution
swath sonar survey; the Eel margin, northern California, in Nittrouer, C.A.,
ed., The Formation of Continental-Margin Strata: Marine Geology, v. 154, p.
255-269. Retrieved from <http://www.sciencedirect.com/science/journal/00253227>


Lee, H., Locat, J., Dartnell, P., Israel, K., and Wong, F. L, 1999, Regional
variability of slope stability; application to the Eel margin, California, in
Nittrouer, C.A., ed., The Formation of Continental-Margin Strata: Marine
Geology, v. 154, p. 305-321.


Nittrouer, Charles A., editor, 1999, The Formation of Continental-Margin
Strata: Marine Geology v. 154, p. 1-420, <http://www.sciencedirect.com/>.
[book volume]

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/>, 20131030, Geophysical data of field activity 96030 (W-1-96-NC) in Eureka, CA shelf and slope from 06/29/1996 to 07/08/1996: 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: -124.77558
    East_Bounding_Coordinate: -124.17098
    North_Bounding_Coordinate: 41.31778
    South_Bounding_Coordinate: 40.55345

  3. What does it look like?

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

    Beginning_Date: 29-Jun-1996
    Ending_Date: 08-Jul-1996
    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: Eureka, CA shelf and slope
      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:
    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?

    Mike Field (Chief Scientist, USGS Western Region); Jim Gardner (Co-chief Scientist, USGS Western Region); John Gann (Elec. Tech, USGS Western Region); Tom O'Brien (Elec. Tech, USGS Woods Hole); Pete Dartnell (Watchstander, USGS Western Region); Ian Wallace (Watchstander, USGS Western Region); Stuart Sides (Watchstander, USGS Western Region); Graham Dundee (Elec Tech, Geoforce)

  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: 10-Jul-1996 (process 1 of 1)
    Navigation Data
    07/10/96 clint w-1-96-nc.060
    /bear/programs/refmt/vms2unix/vms2uni
    Global positioning system (GPS) data
    removed blatantly wrong nav fixes (about 24) and 2 inconsistant records.
    
    

    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:
    W196NC Cruise Report exists at Woods Hole Borgeld, J. C., Hughes-Clarke, J. E., Goff, J. A., Mayer, L. A., and Curtis, J. A, 1999, Acoustic backscatter of the 1995 flood deposit on the Eel shelf, in Nit trouer, C.A., ed., The Formation of Continental-Margin Strata: Marine Geology, v . 154, p. 197-210. Retrieved from <http://www.sciencedirect.com/science/journal/> 00253227
    Cacchione, D., Wiberg, P., Lynch, J., Irish, J., and Traykovski, P, 1999, Estima tes of suspended-sediment flux and bedform activity on the inner portion of the Eel continental shelf, in Nittrouer, C.A., ed., The Formation of Continental-Mar gin Strata: Marine Geology, v. 154, p. 83-97.
    Drake, D. E, 1999, Temporal and spatial variability of the sediment grain-size d istribution on the Eel shelf; the flood layer of 1995, in Nittrouer, C.A., ed., The Formation of Continental-Margin Strata: Marine Geology, v. 154, p. 169-182. Borgeld, J. C., Hughes-Clarke, J. E., Goff, J. A., Mayer, L. A., and Curtis, J. A, 1999, Acoustic backscatter of the 1995 flood deposit on the Eel shelf, in Nittrouer, C.A., ed., The Formation of Continental-Margin Strata: Marine Geology, v. 154, p. 197-210. Retrieved from <http://www.sciencedirect.com/science/journal/00253227>
    Cacchione, D., Wiberg, P., Lynch, J., Irish, J., and Traykovski, P, 1999, Estimates of suspended-sediment flux and bedform activity on the inner portion of the Eel continental shelf, in Nittrouer, C.A., ed., The Formation of Continental-Margin Strata: Marine Geology, v. 154, p. 83-97.
    Drake, D. E, 1999, Temporal and spatial variability of the sediment grain-size distribution on the Eel shelf; the flood layer of 1995, in Nittrouer, C.A., ed., The Formation of Continental-Margin Strata: Marine Geology, v. 154, p. 169-182.
    Field, M. E., Gardner, J. V., and Prior, D. B, 1999, Geometry and significance of stacked gullies on the northern California slope, in Nittrouer, C.A., ed., The Formation of Continental-Margin Strata: Marine Geology, v. 154, p. 271-286.
    Gardner, J. V., Prior, D. B., and Field, M. E, 1999, Humboldt slide; a large shear-dominated retrogressive slope failure, in Nittrouer, C.A., ed., The Formation of Continental-Margin Strata: Marine Geology, v. 154, p. 323-338.
    Goff, J. A., Orange, D. L., Mayer, L. A., and Hughes-Clarke, J. E, 1999, Detailed investigation of continental shelf morphology using a high-resolution swath sonar survey; the Eel margin, northern California, in Nittrouer, C.A., ed., The Formation of Continental-Margin Strata: Marine Geology, v. 154, p. 255-269. Retrieved from <http://www.sciencedirect.com/science/journal/00253227>
    Lee, H., Locat, J., Dartnell, P., Israel, K., and Wong, F. L, 1999, Regional variability of slope stability; application to the Eel margin, California, in Nittrouer, C.A., ed., The Formation of Continental-Margin Strata: Marine Geology, v. 154, p. 305-321.
    Nittrouer, Charles A., editor, 1999, The Formation of Continental-Margin Strata: Marine Geology v. 154, p. 1-420, <http://www.sciencedirect.com/>. [book volume]



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-1-96-nc.060 [GPS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199606290034044    199606290127154
    199606291415532    199607022347270
    199607022353300    199607041040370
    199607041048060    199607042244180
    199607042251185    199607050037245
    199607050048240    199607050448440
    199607050513220    199607061438410
    199607061446250    199607061526240
    199607061533500    199607061659250
    199607061706550    199607061707350
    199607061715120    199607062035040
    199607062041030    199607070033290
    199607070038420    199607080407570
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Seismic Shots Data (w-1-96-nc.410_060)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199607061025540    199607061120580
    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 96030 (W-1-96-NC) data set <http://walrus.wr.usgs.gov/infobank/w/w196nc/html/w-1-96-nc.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: 4.3
Network links: <http://walrus.wr.usgs.gov/infobank/w/w196nc/html/w-1-96-nc.nav.html>

Data format: ASCII Size: 0.1
Network links: <http://walrus.wr.usgs.gov/infobank/w/w196nc/html/w-1-96-nc.seis.html>

  • Cost to order the data: None


  • Who wrote the metadata?

    Dates:
    Last modified: 30-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 Wed Oct 30 08:53:34 2013