Near-Field Sources for the Seaside, Oregon, Tsunami Pilot Study

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Frequently-anticipated questions:


What does this data set describe?

Title: Near-Field Sources for the Seaside, Oregon, Tsunami Pilot Study
Abstract:
This data set consists of ASCII raster grids representing Cascadia subduction zone source scenarios based on Fluck, et al.
  1. How should this data set be cited?

    Geist, Eric L. , 2006, Near-Field Sources for the Seaside, Oregon, Tsunami Pilot Study: U.S. Geological Survey, Menlo Park, California.

    Online Links:

    This is part of the following larger work.

    Wong, Florence L. , Venturato, Angie J. , and Geist, Eric L. , 2006, Seaside, Oregon Tsunami Pilot Study -- Modernization of FEMA Flood Hazard Maps: GIS Data: U.S. Geological Survey Data Series 236, U.S. Geological Survey, Menlo Park, California.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -130.000000
    East_Bounding_Coordinate: -121.998400
    North_Bounding_Coordinate: 50.002000
    South_Bounding_Coordinate: 40.000000

  3. What does it look like?

    <https://pubs.usgs.gov/ds/2006/236/metadata/nearfield_sources.gif> (GIF)
    Two examples of coseismic vertical displacement field used as initial conditions for local tsunami modeling.

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

    Calendar_Date: 2006
    Currentness_Reference: publication date

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: raster digital data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      This is a Raster data set. It contains the following raster data types:

      • Dimensions 600 x 480 x 1, type Grid Cell

    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 1.000000. Longitudes are given to the nearest 1.000000. 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 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.

  7. How does the data set describe geographic features?


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?

    Fluck et al. (1997), Geist et al. (2006)

  3. To whom should users address questions about the data?

    Florence Wong
    U.S. Geological Survey
    345 Middlefield Rd, MS 999
    Menlo Park, California 94025
    USA

    650-329-5327 (voice)
    650-329-5190 (FAX)
    fwong@usgs.gov


Why was the data set created?

This data set is one of a collection of spatially referenced digital files in a geographic information system related to the Seaside, Oregon, Tsunami Pilot Study.

Federal Emergency Management Agency (FEMA) Federal Insurance Rate Map (FIRM) guidelines do not currently exist for conducting and incorporating tsunami hazard assessments that reflect the substantial advances in tsunami research achieved in the last two decades (Tsunami Pilot Study Working Group, 2006). Therefore, as part of the FEMA Modernization Program, a Tsunami Pilot Study was carried out in the Seaside/Gearhart, Oregon, area to provide information from which tsunami mapping guidelines could be developed. This area was chosen because it is typical of coastal communities in the section of the Pacific Coast from Cape Mendocino to the Strait of Juan de Fuca. There was also considerable interest shown by state agencies and local stakeholders in mapping the tsunami threat to this region. The study was an interagency effort by scientists from the U.S. Geological Survey, the National Oceanic and Atmospheric Administration, the University of Southern California, and the Middle East Technical University. We present the GIS data from that report in this publication.

These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) software to display geologic and oceanographic information.


How was the data set created?

  1. From what previous works were the data drawn?

    run# (source 1 of 1)
    Fluck, P., Hyndman, R.D., and Wang, K., 1997, Three-dimensional dislocation model for great earthquakes of the Cascadia subduction zone.

    Other_Citation_Details: Journal of Geophysical Research, v. 102, p. 20, 539-520, 550
    Type_of_Source_Media: online
    Source_Contribution:
    Near-field source distribution for Cascadia subduction zone scenarios

  2. How were the data generated, processed, and modified?

    Date: 2004 (process 1 of 1)
    Refer to cross references.

    Data sources produced in this process:

    • source15
    • source16
    • source17
    • source18
    • source19
    • source20
    • source21
    • source22
    • source23
    • source24
    • source25
    • source26

  3. What similar or related data should the user be aware of?

    Tsunami Pilot Study Working Group, 2006, Seaside, Oregon Tsunami Pilot Study -- Modernization of FEMA Flood Hazard Maps: U.S. Geological Survey Open-File Report 2006-1234, U.S. Geological Survey, Menlo Park, California.

    Online Links:

    Fluck, P., Hyndman, R.D., and Wang, K., 1997, Three-dimensional dislocation model for great earthquakes of the Cascadia subduction zone.

    Other_Citation_Details: Journal of Geophysical Research, v. 102, p20, 539-520, 550.
    al., Geist et , Unknown, Local Tsunami Hazards in the Pacific Northwest from Cascadia Subduction Zone Earthquakes.

    Other_Citation_Details: USGS Professional Paper 1661B


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

  2. How accurate are the geographic locations?

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    Complete.

  5. How consistent are the relationships among the observations, including topology?

    Refer to cross references.


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: None.
Use_Constraints:
These data were created for the sole purpose of the Seaside, Oregon, Tsunami Pilot Study. It is not meant for navigational means. The National Oceanic and Atmospheric Administration makes no expressed or implied warranty regarding the accuracy of these data.

The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data on any other system.

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 Information Services Box 25286
    Denver, Colorado 80225-0286
    USA

    1-888-275-8747 (voice)
    infoservices@usgs.gov

  2. What's the catalog number I need to order this data set?

    U.S. Geological Survey Data Series 236

  3. What legal disclaimers am I supposed to read?

    The act of distribution shall not constitute any warranty expressed or implied by the U.S. Geological Survey as to the accuracy of these data, and no responsibility is assumed by the U.S. Geological Survey in the use of these data on any other system.

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 18-Jul-2006
Last Reviewed: Jul-2006
Metadata author:
NOAA Center for Tsunami Research
c/o Angie J. Venturato
7600 Sand Point Way NE
Seattle, Washington 98115
USA

206-526-6556 (voice)
Angie.J.Venturato@noaa.gov

Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:


Generated by mp version 2.8.11 on Tue Dec 19 09:15:42 2006