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What does this data set describe?

Title:
Land-based and Multichannel Seismic data of field activity T-1-98-PS in Puget Sound, Washington from 03/10/1998 to 03/24/1998
Abstract:
Chief Scientist: Mike Fisher. Land-based and Multichannel Seismic data (YoNav, airgun, 96channel, GPS, bottomseismometer, integratednavigation) of field activity T-1-98-PS in Puget Sound, Washington from 03/10/1998 to 03/24/1998, <http://walrus.wr.usgs.gov/infobank/t/t198ps/html/t-1-98-ps.meta.html>.
Supplemental_Information:

Equipment Used -
YoNav
airgun
96channel multichannel seismic
GPS
bottomseismometer
integratednavigation
Notes -
See also T-2-98-PS (Tully) & T-3-98-PS (land)


From February 27, 1998 Coastal and Marine Geology Bulletin


SHIPS IS ON ITS WAY!
Late this past week 5 48-foot trucks and some smaller cargo carriers left Marfac
loaded with compressors, generators, airguns, and myriad
other gear, all of which is destined for the SHIPS program in Seattle. Another
truck left Texas with the 50-ton multichannel streamer. If all
goes well, nearly 100 tons of mechanical and electrical equipment will be
installed on the University of Washington's 275-foot research
vessel, Thomas G. Thompson. This ship will be joined by the 240-foot Canadian
research ship, John P. Tully, and the two ships will conduct
intricate seismic experiments in the Puget Sound region. While airguns are
discharged behind the Thompson, the resulting seismic waves
will be recorded by the Tully as well as by 250 temporary seismometers that will
be scattered around the region. About 50 fixed earthquake
seismometers will also record these data. This survey is the most complex ever
mounted by the USGS to investigate earthquake hazards in an
urban setting. Cooperating institutions include the U.S. and Canadian Geological
Surveys and six universities. The US Navy lent us critical
infra-red gear, which was almost diverted to the Iraq conflict, and MMS
contributed funds toward studying marine mammals. Funding comes
almost entirely from within the USGS; the external NEHRP, Urban Hazards, and the
Coastal and Marine Programs all contributed. Coastal and
Marine has the honor of having chipped in the greatest share. Permission to use
airguns in Puget Sound and the Straits of Juan de Fuca and
Georgia, which are home to many marine mammals, took almost a year to obtain.
Part of the stipulations in the permit are that when the
airguns are operating, marine mammal biologists must remain vigilant aboard both
survey ships and aboard an aircraft. Eleven biologists will
work closely with geologists to obtain seismic data while minimizing harm to
marine life. These biologists have responsibility for shutting
off the array whenever a marine mammal enters a specific zone around the airguns
where it might suffer hearing damage. The size of the
protective zone varies with mammal species, hence the need for expert
assistance. With close cooperation, we will obtain three-dimensional
seismic data and information on the behavior of marine mammals in response to
airgun signals. The data about mammals will help us and
other groups plan the next airgun surveys; the seismic data will help city
planners allocate scarce funds for seismic strengthening of
important infrastructure. Crew from Marfac CMG and EQ leave early next week.


Mike Fisher

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, Land-based and Multichannel Seismic data of field activity T-1-98-PS in Puget Sound, Washington from 03/10/1998 to 03/24/1998: 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: -125.04557
    East_Bounding_Coordinate: -122.21873
    North_Bounding_Coordinate: 49.91054
    South_Bounding_Coordinate: 47.11676

  3. What does it look like?

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

    Beginning_Date: 10-Mar-1998
    Ending_Date: 24-Mar-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: Puget Sound, Washington
      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:
    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 Fisher (Chief Scientist, USGS Western Region); Alan Cooper (Geologist, USGS Western Region); Jon Childs (Geophysicist, USGS Western Region); Guy Cochrane (Geophysicist, USGS Western Region); Mike Hamer (Data Technician, USGS Western Region); Kevin O'Toole (Marine Tech, USGS Western Region); Gerry O'Brien (Marine Tech, USGS Western Region); Walt Olsen (Marine Tech, USGS Western Region); Hal Williams (Marine Tech, USGS Western Region); Dave Hogg (Electronic Tech, USGS Western Region); Bill Robinson (Electronic Engineer, USGS Western Region); Darcy Bristow (Unspecified, Cascadia Research); John Calambokidis (Unspecified, Cascadia Research); Satinder Chopra (Unspecified, Geol Survey Of Canada); Annie Douglass (Unspecified, Cascadia Research); R. Michael Grogan (Unspecified, Univ Of Washington); Diane Lambourn (Unspecified, Cascadia Research); William Martin (Unspecified, Univ Of Washington); Jen Quan (Unspecified, Cascadia Research); Lisa Schlenter (Unspecified, Cascadia Research); Steve Osmek (Unspecified); Al McClenaghan (Master)

  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-Jul-2000 (process 1 of 2)
    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>

    Date: 25-Jun-2012 (process 2 of 2)
    Bathymetry Data
    11/03/2008 jpaz /infobank/t/t198ps/bath/t-1-98-ps.300_053
    /infobank/programs/edit/automerge/automerge
    
    Input was...
    time/lat/long style, multi-record, in caps
    temporal-spatial data
    data acquisition systems
    
    On Jun 25, 2012, at 10:01 AM, Fisher, Michael A. explained the two sets of lat/lons:
    Back in 1998 I arrived on the Thompson to begin field operations in Puget Sound and I was
    informed that the ship had just been in dry dock. One of the tasks they achieved was to
    install a new bathy transducer. Unfortunately, no one had remembered to accurately measure
    where the transducer was along the ship's bottom so that the locations of bathy readings
    could be corrected for the 'ducer's offset from the ship's GPS antenna. The ship, I was
    told, might not be in dry dock again for a year or longer. So, I had the crew make two
    lat/long files for the bathy: one is the location of the ship's antenna, the other shows
    the location of the center of the MCS airgun array. To use the bathy data you would start
    with the first set of locations, but these locations are in error by the offset. Maybe
    this is negligible. Undoubtedly, in the time since the '98 survey the transducer-antenna
    offset was measured and can be obtained by calling the folks who manage the Thompson at
    the University of Washington. My focus was on the MCS and wide-angle seismic data, so I
    never got around to attending to this task.
    
           1         2         3
    3456789012345678901234567890123456
    time, lat, long, time(sec) to nearest nav fix, data values
    

    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 (t-1-98-ps.053 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199803101716504    199803240408501
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (t-1-98-ps.300_053)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199803101717000    199803102201120
    199803102247110    199803112243000
    199803120156000    199803140904000
    199803141015000    199803150259000
    199803150439000    199803162319030
    199803162326400    199803170003000
    199803170009000    199803170903500
    199803170938500    199803171131300
    199803171751120    199803171803460
    199803171823000    199803190927400
    199803191046300    199803211136400
    199803211209200    199803211315500
    199803211327400    199803240408500
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Seismic Shots Data (t-1-98-ps.410_053)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199803101924200    199803102259400
    199803111003000    199803111453000
    199803111521000    199803111731400
    199803111923400    199803120505400
    199803120642200    199803122342200
    199803130121000    199803130559400
    199803131427400    199803131841400
    199803131903400    199803141258200
    199803141317000    199803141807000
    199803141824200    199803162350200
    199803170237400    199803171425000
    199803171535400    199803180128200
    199803190033452    199803200850298
    199803200902238    199803202113597
    199803202348456    199803210746517
    199803210755577    199803220619160
    199803220627400    199803231128453
    199803231140293    199803240346000
    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 T-1-98-PS data set <http://walrus.wr.usgs.gov/infobank/t/t198ps/html/t-1-98-ps.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: 4.2
Network links: <http://walrus.wr.usgs.gov/infobank/t/t198ps/html/t-1-98-ps.nav.html>

Data format: ASCII Size: 5.3
Network links: <http://walrus.wr.usgs.gov/infobank/t/t198ps/html/t-1-98-ps.bath.html>

Data format: ASCII Size: 3.4
Network links: <http://walrus.wr.usgs.gov/infobank/t/t198ps/html/t-1-98-ps.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 15:56:42 2013