Beaverton_SW_LSdeposits

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Frequently-anticipated questions:


What does this data set describe?

Title: Beaverton_SW_LSdeposits
Abstract:
DOGAMI performed a regional landslide hazard evaluation of the West Bull Mountain Planning Area (WBMPA).
Deliverables of this study include the following:
1. LIDAR-based landslide inventory map 2. GIS files
DOGAMI Special Paper 42, Protocol for Inventory Mapping of Landslide Deposits from Light Detection and Ranging (Lidar) Imagery (Burns and Madin, 2009) was used to create a landslide inventory of the southwest quarter of the Beaverton quadrangle. Ninety-eight landslide deposits were located. Forty-seven of these are within the WBMPA. Eighty-three of these were classified as shallow, nine as deep, and six as debris flow deposits. The average prefailure slope angle is 28 degrees. The average landslide area is roughly 20,000 square feet, which is approximately the size of a football field. The average depth of failure for the shallow-seated landslides is 8.5 feet, and the average depth of failure for the deep-seated landslides is 26 feet. The landslide inventory map was developed with input from many sources, along with years of experience; however, several limitations underscore that these maps are designed for regional applications and should not be used as an alternative to site-specific studies in critical areas. These limitations are described in detail on the map plate and in Special Paper 42 (Burns and Madin, 2009).
This map is intended to provide users with basic information regarding landslides within the mapped area. The map contains useful information to guide site-specific investigations for future development, assist in regional planning and development, to mitigate existing landslides and slopes, and to prepare for emergency situations, such as storm events and earthquakes. While we reiterate that this database is not appropriate for site-specific evaluations, it is valuable for regional screening for landslides and the selection of appropriate areas on which to focus further site-specific studies. The database is particularly suitable for incorporation and consideration into regional GIS databases for a multitude of purposes. These include but are not limited to city and county hillside development ordinances, issuance of building permit conditions, public works planning and operations, and environmental and sustainability issues.
  1. How should this data set be cited?

    Oregon Department of Geology and Mineral Industries, Unknown, Beaverton_SW_LSdeposits: IMS 27, Oregon Department of Geology and Mineral Industries, Portland, Oregon.

    Online Links:

    • \\VISTAPC12008\C$\Publications-in-progress\IMS-27 LS SW Q Beaverton\for CD\GIS\Beaverton_SW_LSdeposits.shp

    Other_Citation_Details: Public domain.
    This is part of the following larger work.

    REQUIRED - wite out series name: Open-File Report, etc. REQUIRED - use IMS, OFR, GMS, etc., Oregon Department of Geology and Mineral Industries, Portland, Oregon.

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -122.869956
    East_Bounding_Coordinate: -122.813190
    North_Bounding_Coordinate: 45.429628
    South_Bounding_Coordinate: 45.375577

  3. What does it look like?

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

    Calendar_Date: 2009
    Currentness_Reference: publication date

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

    Geospatial_Data_Presentation_Form: vector digital data

  6. How does the data set represent geographic features?

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

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • G-polygon (98)

    2. What coordinate system is used to represent geographic features?

      The map projection used is Lambert Conformal Conic.

      Projection parameters:
      Standard_Parallel: 44.333333
      Standard_Parallel: 46.000000
      Longitude_of_Central_Meridian: -120.500000
      Latitude_of_Projection_Origin: 43.666667
      False_Easting: 8202099.737533
      False_Northing: 0.000000

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.000000
      Ordinates (y-coordinates) are specified to the nearest 0.000000
      Planar coordinates are specified in international feet

      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?

    Beaverton_SW_LSdeposits

    FID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    Area

    ID

    QUADNAME

    UNIQUE_ID

    TYPE_MOVE

    MOVE_CLASS

    CLASS_CODE

    CERTAINTY

    AGE

    DATE_MOVE

    NAME

    GEOL

    SLOPE

    HSHEIGHT

    FAIL_DEPTH

    DEEP_SHAL

    HS_IS1

    IS1_IS2

    IS2_IS3

    IS3_IS4

    HDAVE

    DIRECT

    AREA
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    VOL

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    Id

    FAN_DEPTH

    Entity_and_Attribute_Overview: Detailed summary of the information contained in a data set.
    Entity_and_Attribute_Detail_Citation:
    Reference to the complete description of the entity types, attributes, and attribute values for the data set.


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?

    William J. Burns

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

    William J. Burns
    Oregon Department of Geology and Mineral Industries
    Engineering Geologist
    800 NE Oregon Street #28, Suite 965
    Portland, Oregon 97232-2162
    USA

    971-673-1538 (voice)
    971-673-1562 (FAX)
    bill.burns@dogami.state.or.us

    Hours_of_Service: 8am - 5pm


Why was the data set created?

This map is intended to provide users with basic information regarding landslides and the susceptibility to landslides within the mapped area. This map contains useful information to guide site-specific investigations for future development, assist in regional planning and development, to mitigate existing landslides and slopes, and to prepare for emergency situations, such as storm events and earthquakes. While we reiterate that this database is not appropriate for site-specific evaluations, it is valuable for regional screening for landslides and the selection of appropriate areas on which to focus further site-specific studies. The database is particularly suitable for incorporation and consideration into regional GIS databases for a multitude of purposes. These include but are not limited to city and county hillside development ordinances, issuance of building permit conditions, public works planning and operations, and environmental and sustainability issues.


How was the data set created?

  1. From what previous works were the data drawn?

    (source 1 of 1)
    Oregon Department of Geology and Mineral Industries, 2009, Landslide Inventory Map of the Southwest Quarter of the Beaverton quadrangle, Washington County, Oregon: DOGAMI Interpretive Map Series 27, Oregon Department of Geology and Mineral Industries, Portland, Oregon.

    Source_Contribution:
    The inventory was created following the protocol defined by Burns and Madin (2009).

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

    (process 1 of 5)
    The inventory was created following the protocol defined by Burns and Madin (2009).

    (process 2 of 5)
    Metadata imported.

    Data sources used in this process:

    • C:\Documents and Settings\deb schueller\Desktop\metadata-how-to\DOGAMI_General_Metadata_Template.xml

    (process 3 of 5)
    Metadata imported.

    Data sources used in this process:

    • E:\Bill_DOGAMI_General_Metadata.xml

    (process 4 of 5)
    Metadata imported.

    Data sources used in this process:

    • E:\Current Projects\Bull Mountain - WA County Landslide\Report\Open File Report\GIS Files\metadata.xml

    Date: 20-Mar-2009 (process 5 of 5)
    Dataset copied.

    Data sources used in this process:

    • C:\Shared\4_Current_Projects\USGS Landslide\Landslide Mapping Protocol\Report\Final Draft Revisions from External\IMS-27_SW_Beaverton\Beaverton_SW_LSdeposits

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

    Oregon Department of Geology and Mineral Industries, 2009, DOGAMI Special Paper 42, Protocol for Inventory Mapping of Landslide Deposits from Light Detection and Ranging (Lidar) Imagery: Interpretive Map Series 27, Oregon Department of Geology and Mineral Industries, Portland, Oregon.

    Other_Citation_Details:
    by William J. Burns and Ian P. Madin. The SP-42 file set consists of: a. Text report (print and onscreen versions), 30 pp. b. "geodatabase_template" folder: - Landslide_Inventory_Template-ArcInfo.gdb - includes relationship classes between the feature classes - Landslide_Inventory_Template-ArcView.gdb - sr_Toolbox.tbx - additional tools: Find Unmatched Features and Unjoin Layers c. Readme.txt file


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

  1. How well have the observations been checked?

    The inventory was created following the protocol defined by Burns and Madin (2009).

  2. How accurate are the geographic locations?

    The inventory was created following the protocol defined by Burns and Madin (2009).

  3. How accurate are the heights or depths?

    The inventory was created following the protocol defined by Burns and Madin (2009).

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

    Protocol for Inventory Mapping of Landslide Deposits from Light Detection and Ranging (Lidar) Imagery was used to create a landslide inventory of the southwest quarter of the Beaverton quadrangle

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

    DOGAMI SP-42, Protocol for Inventory Mapping of Landslide Deposits from Light Detection and Ranging (Lidar) Imagery was used to create a landslide inventory of the southwest quarter of the Beaverton quadrangle


How can someone get a copy of the data set?

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

Access_Constraints:
DOGAMI makes no warranty as to the currency, completeness, accuracy or utility of any specific data. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with these data.
Use_Constraints:
Restrictions and legal prerequisites for using the data set after use is granted. These include any access constraints applied to assure the protection of privacy or intellectual property, and any special restrictions or limitations on using the data set. For example: Maps in this publication depict landslides and landslide hazards. The maps cannot serve as a substitute for site-specific investigations by qualified practitioners. Site-specific data may give results that differ from those shown on the maps.

  1. Who distributes the data set? (Distributor 1 of 1)

    Nature of the Northwest Information Center
    c/o Donald Haines
    Manager
    800 N.E. Oregon Street, Suite 177
    Portland, OR 97232
    USA

    503-872-2750 (voice)
    971-673-1562 (FAX)
    don.haines@dogami.state.or.us

    Hours_of_Service: 9 am to 5 pm PST
  2. What's the catalog number I need to order this data set?

    Spatial data files available in shape file (.shp) format (ESRI).

  3. What legal disclaimers am I supposed to read?

    Although these data have been processed successfully on a computer system at the Oregon Department of Geology and Mineral Industries (DOGAMI), no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data are directly acquired from DOGAMI, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The Oregon Department of Geology and Mineral Industries shall not be held liable for improper or incorrect use of the data described and/or contained herein.

  4. How can I download or order the data?

  5. What hardware or software do I need in order to use the data set?

    Geographic Information System software


Who wrote the metadata?

Dates:
Last modified: 21-Mar-2009
Metadata author:
William J. Burns
Oregon Department of Geology and Mineral Industries
Engineering Geologist

971-673-1538 (voice)
971-673-1562 (FAX)
bill.burns@dogami.state.or.us

Hours_of_Service: 8:30 am to 4:30 pm PST
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:


Generated by mp version 2.9.6 on Sat Mar 21 09:37:38 2009