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What does this data set describe?

Title:
Seismic and Sidescan Sonar and Video data of field activity J-1-99-SF in Central San Francisco Bay, CA from 01/11/1999 to 01/20/1999
Abstract:
Chief Scientists: John Chin, Paul Carlson. Seismic and Sidescan Sonar and Video data (Geopulse, sidescansonar, underwatertelevision, underwatercamera) of field activity J-1-99-SF in Central San Francisco Bay, CA from 01/11/1999 to 01/20/1999, <http://walrus.wr.usgs.gov/infobank/j/j199sf/html/j-1-99-sf.meta.html>.
Supplemental_Information:

Equipment Used -
Geopulse 650j
sidescansonar 100khz w/attached 3.5khz
underwatertelevision video camera (small sled)
underwatercamera
Notes -
San Francisco Bay Pollutant and Sediment Transport.


From "Western Region coastal and Marine Geology Bulletin",
Publisher Mike Carr, Editor: Anne Gartner, February 12, 1999:


CRUISE NEWS: R/V DAVID JOHNSTON
In mid-January 1999, the David Johnston returned to central San
Francisco Bay for follow-up studies of three bedrock knobs that
rise above the unconsolidated sediment to water depths of <39'
(LLW).
The rocks are within the general westbound traffic zone and about
200 m from the Deep Water Traffic Lane where oil tankers and cargo
vessels with drafts of 50' routinely enter the bay; thus a
potential catastrophe awaits.
The rocks have been lowered by blasting in the past (late 1800s and
early 1900s) and the Harbor Safety committee is meeting frequently
to determine how to tackle this problem under present rules and
regulations.
At their invitation, John Chin and Paul Carlson have attended
several of the meetings.
We (Mike Boyle, Paul Carlson, John Chin, and boat skipper Gordon
Smith) ran very successful hi-res seismic lines and a few side-scan
sonar lines across the rocks and over some of the sand shoal areas.


Hank Chezar joined us for one day and we obtained some good video
over two of the rocks and over one of the sand shoals.
Fortunately, we had our camera deployment before the rains came to
muddy up the water.
The accompanying photo shows Hank testing the camera system before
we left Pier 39 in San Francisco.

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, Seismic and Sidescan Sonar and Video data of field activity J-1-99-SF in Central San Francisco Bay, CA from 01/11/1999 to 01/20/1999: 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: -122.47744
    East_Bounding_Coordinate: -122.19342
    North_Bounding_Coordinate: 37.92942
    South_Bounding_Coordinate: 37.50867

  3. What does it look like?

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

    Beginning_Date: 11-Jan-1999
    Ending_Date: 20-Jan-1999
    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: Central San Francisco Bay, CA
      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?

    John Chin (Chief Scientist, USGS Western Region); Paul Carlson (Chief Scientist, USGS Western Region); Mike Boyle (Electronic Tech, USGS Western Region); Hank Chezar (Video Specialist, USGS Western Region); Gordon Smith (Captain, UCSC)

  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: 01-Nov-2000 (process 1 of 1)
    Navigation Data
    time/lat/long style, multi-record, in caps
    temporal-spatial data
    data acquisition systems
    
           1         2         3
    3456789012345678901234567890123456
    

    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 (j-1-99-sf.062 [GPS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199901111545104    199901111616304
    199901111622401    199901111654100
    199901111723403    199901111737104
    199901111752504    199901111831400
    199901111837101    199901111837401
    199901111843101    199901120035300
    199901120040304    199901120043504
    199901121538200    199901121538200
    199901121543500    199901130055002
    199901131556003    199901131600400
    199901131636402    199901131645104
    199901131654404    199901140024201
    199901141601400    199901141607500
    199901141613300    199901141615300
    199901141622201    199901142128406
    199901151531102    199901160003500
    199901191610004    199901200005103
    199901201537301    199901201852302
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Seismic Shots Data (j-1-99-sf.410_geopulse)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199901111948040    199901112156220
    199901112209040    199901112341000
    199901112352030    199901120020020
    199901121627220    199901121810170
    199901121828060    199901121929030
    199901122048070    199901122242590
    199901122306400    199901130040150
    199901151614070    199901152337560
    199901152355020    199901152357040
    199901191703420    199901191727230
    199901191820590    199901191949110
    199901192045090    199901192237140
    199901192302020    199901192358090
    199901201603190    199901201845090
    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 J-1-99-SF data set <http://walrus.wr.usgs.gov/infobank/j/j199sf/html/j-1-99-sf.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: 1.1
Network links: <http://walrus.wr.usgs.gov/infobank/j/j199sf/html/j-1-99-sf.nav.html>

Data format: ASCII Size: 7.0
Network links: <http://walrus.wr.usgs.gov/infobank/j/j199sf/html/j-1-99-sf.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 12:25:03 2013