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What does this data set describe?

Title:
High-Resolution Seismic data of field activity J-2-98-SF in San Francisco Bay, CA from 04/05/1998 to 04/10/1998
Abstract:
Chief Scientist: Jon Childs. High-Resolution Seismic data (YoNav, 48channel, 200khz, Geopulse, uniboom, Seistecprofiler, minisparker) of field activity J-2-98-SF in San Francisco Bay, CA from 04/05/1998 to 04/10/1998, <http://walrus.wr.usgs.gov/infobank/j/j298sf/html/j-2-98-sf.meta.html>.
Supplemental_Information:

Equipment Used -
YoNav
48channel
200khz
Geopulse
uniboom
Seistecprofiler
minisparker
Notes -
J-2-98-SF System Calibration and Test Cruise
6-10 April, 1998
Monday, 4/6
Meet to discuss objectives for the week;
finish mobilization at Yerba Buena Island;
establish data acquisition signal strategy, including Lookout system;
acquire Geopulse profiles with 3-element and short ITI streamers;
calibrate (Corps of Engineers method) Geopulse system.


Tuesday, 4/7
Acquire Seistec and minisparker profiles;
calibrate Seistec and minisparker systems;
test multichannel acquisition with Geopulse.


Wednesday, 4/8
Exchange Uniboom and Geopulse sleds;
acquire Uniboom profile with 3-element and short ITI streamers;
calibrate Uniboom system;
acquire multi-offset data with Uniboom source;
test remote acquisition of Uniboom data with radio trigger.


Thursday, 4/9
Measure radiation and attenuation of Uniboom and minisparker systems;
return to Redwood City.


Friday, 4/10
Test watergun from Redwood City pier;
measure radiation and attenuation of watergun via remote acquisition;
demobilize.


Equipment notes: yonav dgps w/ shot control
2channel: mudseis 2-channel, 16-bit, 51.2 khz
48channel: geometrics 48-channel strataview w/ marine controller
4channel: lookout 4-channel,16-bit, 200 khz
geopulse: geopulse source (single-plate), geopulse amplifier/filter
uniboom: uniboom source (single plate)
seistec: ikb seistec source
minisparker: minisparker source, 1 kj power supply
receiver: 3-element streamer; 15-element streamer; 12-element iti streamer;
48-meter, 36-channel iti streamer; model f42b calibrated hydrophone w/ 30 m
cable signal conditioning kron-hite bandpass filter; tektronix amplifiers;
bandpass filter; _____ amplifier test equipment storage oscilloscope;
precision voltmeters (2); hp spectrum analyzer

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, High-Resolution Seismic data of field activity J-2-98-SF in San Francisco Bay, CA from 04/05/1998 to 04/10/1998: 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: -122.37599
    East_Bounding_Coordinate: -122.33084
    North_Bounding_Coordinate: 37.86158
    South_Bounding_Coordinate: 37.73403

  3. What does it look like?

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

    Beginning_Date: 05-Apr-1998
    Ending_Date: 10-Apr-1998
    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: 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>


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?

    Jon Childs (Chief Scientist, USGS Western Region); Alan Cooper (Unspecified, USGS Western Region); Pat Hart (Unspecified, USGS Western Region); Larry Kooker (Unspecified, USGS Western Region); Tom McGee (Unspecified, MMS); Vaughn Goebel (Unspecified, Lookout Geophysical); Craig Lippus (Unspecified, Geometrics); Gordon Smith (Captain)

  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: 21-Apr-1998 (process 1 of 1)
    Navigation Data
    Removed ^p^p's    Clint Steele   4/21/98
    Input was...
     NODUPTIMES  input j-2-98-sf.060, output j-2-98-sf.061  Clint Steele  4/21/98
    
    

    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-2-98-sf.062 [GPS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199804051724202    199804051947501
    199804061948003    199804062217400
    199804071600200    199804072219302
    199804081628502    199804081628502
    199804081643202    199804082327103
    199804091655005    199804091713400
    199804091722200    199804092105304
    199804092111504    199804100001201
    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-2-98-SF data set <http://walrus.wr.usgs.gov/infobank/j/j298sf/html/j-2-98-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: 0.5
Network links: <http://walrus.wr.usgs.gov/infobank/j/j298sf/html/j-2-98-sf.nav.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 12:25:06 2013