DUBATHG - ArcInfo GRID format of the 2001 multibeam echo-sounder data collected in the Duwamish River Delta, Puget Sound (Seattle), Washington from Field Activity: R-1-01-WA

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Frequently anticipated questions:


What does this data set describe?

Title:
DUBATHG - ArcInfo GRID format of the 2001 multibeam echo-sounder data collected in the Duwamish River Delta, Puget Sound (Seattle), Washington from Field Activity: R-1-01-WA
Abstract:
ArcInfo GRID format bathymetry data generated from the 2001 multibeam sonar survey the major deltas of southern Puget Sound, WA., including Nisqually, Puyallup, and Duwamish Deltas. This is meatadata for the Duwamish Delta multibeam bathymetry data.
Supplemental_Information:
A magnitude 6.8 earthquake struck southern Puget Sound, Washington, USA on February 28, 2001 causing an estimated $0.7 billion to $1.4 billion in damages to the surrounding area. The epicenter was close to the Nisqually delta, one of three major deltas in southern Puget Sound. The Nisqually delta is a wildlife refuge but the other two deltas, the Duwamish delta in Seattle and the Puyallup delta in Tacoma, support extensive infrastructure, including major port facilities at the delta edges. Teams of geologists inspected the area immediately after the earthquake and reported liquefaction features and areas of vertical ground displacement in the Ports of Seattle and Tacoma as well as the presence of "mud plumes" in the waters of Puget Sound. A joint Natinal Oceanic and Atmospheric Administration (NOAA)/U.S. Geological Survey (USGS) cruise was rapidly assembled in March 2001 (3/19/01 to 3/30/01) to map the bathymetry of the delta fronts using the high-resolution multibeam systems of the NOAA Ship Rainier. The mapping discovered a variety of submarine failures on the Puyallup and Duwamish delta fronts that may be related to the earthquake. These data represent the multibeam echosounder data collected during the survey.
Information for USGS Coastal and Marine Geology related activities are online at <http://walrus.wr.usgs.gov/infobank/r/r101wa/html/r-1-01-wa.meta.html>
  1. How might this data set be cited?
    United States Geological Survey (USGS), Coastal and Marine Geology (CMG), and Chief Scientist (James V. Gardner), 2001, DUBATHG - ArcInfo GRID format of the 2001 multibeam echo-sounder data collected in the Duwamish River Delta, Puget Sound (Seattle), Washington from Field Activity: R-1-01-WA: U.S. Geological Survey, Coastal and Marine Geology Program, Western Region Coastal and Marine Geology, Menlo Park, CA.

    Online Links:

    This is part of the following larger work.

    Gardner, James V., E.J. van den Ameele, and Dartnell, Peter, 2001, Multibeam Mapping of the Major Deltas of Southern Puget Sound, Washington: Open-File Report 01-266, U.S. Geological Survey, Coastal and Marine Geology Program, Western Region Coastal and Marine Geology, Menlo Park, CA.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -122.405283
    East_Bounding_Coordinate: -122.339579
    North_Bounding_Coordinate: 47.625951
    South_Bounding_Coordinate: 47.572986
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 19-Mar-2001
    Ending_Date: 30-Mar-2001
    Currentness_Reference:
    ground condition
  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 1463 x 1224 x 1, type Grid Cell
    2. What coordinate system is used to represent geographic features?
      Grid_Coordinate_System_Name: Universal Transverse Mercator
      Universal_Transverse_Mercator:
      UTM_Zone_Number: 10
      Transverse_Mercator:
      Scale_Factor_at_Central_Meridian: 0.999600
      Longitude_of_Central_Meridian: -123.000000
      Latitude_of_Projection_Origin: 0.000000
      False_Easting: 500000.000000
      False_Northing: 0.000000
      Planar coordinates are encoded using row and column
      Abscissae (x-coordinates) are specified to the nearest 3.996729
      Ordinates (y-coordinates) are specified to the nearest 3.996729
      Planar coordinates are specified in meters
      The horizontal datum used is D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257224.
  7. How does the data set describe geographic features?
    Entity_and_Attribute_Overview:
    DUBATHG is an ArcInfo GRID with the following attributes:
    Data Type: Floating
    BOUNDARY (UTM meters)
    Xmin = 544727.721 Xmax = 549619.717 Ymin = 5269052.074 Ymax = 5274899.288
    STATISTICS (grid cell values, elevation in meters)
    Minimum Value = -179.795 Maximum Value = -1.750 Mean = -70.210 Standard Deviation = 38.142
    Entity_and_Attribute_Detail_Citation: none

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • United States Geological Survey (USGS)
    • Coastal and Marine Geology (CMG)
    • Chief Scientist (James V. Gardner)
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    James V. Gardner
    United States Geological Survey (USGS)
    Geologist
    Coastal and Marine Geology Program
    Menlo Park, CA
    USA

    (650) 329-5469 (voice)
    (650) 329-5411 (FAX)
    jvgardner@usgs.gov

Why was the data set created?

These data are intended for science researchers, students, policy makers, and the general public.
The data can be used with geographic information systems (GIS) or other software to display bathymetry data of the major deltas of southern Puget Sound, WA.

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: 30-Mar-2001 (process 1 of 1)
    The bathymetry data were collected along a continuous swathperpendicular to the direction of the ship using a Reson 8101, an Elac 1180, and an Elac 1050D multibeam sonar system. The data are cleaned of bad navigation and depth readings. The depth readings are gridded into a common grid. The gridded data are converted to ArcInfo GRID format using ArcInfo's ASCIIGRID command. Person who carried out this activity:
    James V. Gardner
    United States Geological Survey (USGS)
    Geologist
    Coastal and Marine Geology Program
    Menlo Park, CA
    USA

    (650) 329-5469 (voice)
    (650) 329-5411 (FAX)
    jvgardner@usgs.gov
    Data sources produced in this process:
    • dubath
  3. What similar or related data should the user be aware of?

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

  1. How well have the observations been checked?
    Not applicable for raster data.
  2. How accurate are the geographic locations?
    0.5 meters
  3. How accurate are the heights or depths?
    0.5 percent of the water depth
  4. Where are the gaps in the data? What is missing?
    Complete
  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: None
Use_Constraints:
These data are not intended for navigational purposes.
Please recognize the U.S. Geological Survey (USGS) as the source of this information. USGS-authored or produced data and information are in the public domain.
Users are cautioned to consider carefully the provisional nature of these data and information before using them for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Conclusions drawn from, or actions undertaken on the basis of, such data and information are the sole responsibility of the user.
  1. Who distributes the data set? (Distributor 1 of 2)
    United States Geological Survey (USGS)
    Attn: USGS Information Services (Open-File Report Sales)
    Box 25286
    Denver, CO
    USA

    (888) ASK-USGS (voice)
  2. What's the catalog number I need to order this data set? Downloadable Data R-01-WA data set
  3. What legal disclaimers am I supposed to read?
    Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, these data and information are provided with the understanding that they are not guaranteed to be usable, timely, accurate, or complete.
    Users are cautioned to consider carefully the provisional nature of these data and information before using them for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Conclusions drawn from, or actions undertaken on the basis of, such data and information are the sole responsibility of the user.
    Neither the U.S. Government nor any agency thereof, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any data, software, information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights.
    Trade, firm, or product names and other references to non-USGS products and services are provided for information only and do not constitute endorsement or warranty, express or implied, by the USGS, USDOI, or U.S. Government, as to their suitability, content, usefulness, functioning, completeness, or accuracy.
  4. How can I download or order the data?
    • Availability in digital form:
      Data format: ArcInfo GRID (version 8.0.2) Size: 6.882
      Network links:
    • Cost to order the data: None

  5. What hardware or software do I need in order to use the data set?
    These data are available in Environmental Systems Research Institute (ESRI) ArcInfo GRID format. The user must have software capable of importing and processing the data file.

  1. Who distributes the data set? (Distributor 2 of 2)
    Peter Dartnell
    U.S. Geological Survey
    Physical Scientist
    Coastal and Marine Geology Program
    Menlo Park, CA
    USA

    (650) 329-5460 (voice)
    (650) 329-5411 (FAX)
    pdartnell@usgs.gov
  2. What's the catalog number I need to order this data set? Downloadable Data: Duwamish Delta (dubath.tar)
  3. What legal disclaimers am I supposed to read?
    Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, these data and information are provided with the understanding that they are not guaranteed to be usable, timely, accurate, or complete.
  4. How can I download or order the data?
  5. What hardware or software do I need in order to use the data set?
    These data are available in Environmental Systems Research Institute (ESRI) ArcInfo GRID format. The user must have software capable of importing and processing the data file.

Who wrote the metadata?

Dates:
Last modified: 04-Apr-2005
Metadata author:
Pete Dartnell
United States Geological Survey (USGS)
Physical Scientist
Coastal and Marine Geology Program
Menlo Park, CA
USA

(650) 329-5460 (voice)
(650) 329-5411 (FAX)
pdartnell@usgs.gov
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:

This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/westcoast/washington/pugetsound/dubathg.faq.html>
Generated by mp version 2.9.49 on Fri Sep 13 15:01:18 2019