DOGAMI Open-File Report Series

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Open-File Report O-13-02, Landslide inventory map of the Harbor Hills area, Curry County, Oregon, by William J. Burns, Serin Duplantis, and Cullen B. Jones.

Order publication CD-ROM, $15, from Nature of the Northwest.

This publication includes:

1. O-13-02 folder:

  1. Geodatabase: Landslide_Inventory_HarborHills_10.gdb - ArcGIS version 10.1
    Geodatabase contains data for 1) landslide deposits, 2) head scarps and flanks,
    and 3) scarps.
  2. metadata_*.xml - metadata in XML format for GIS data.
  3. Map plate in PDF format:
    - O-13-02-map.pdf, Landslide Inventory Map of the Harbor Hills Area, Curry County, Oregon, scale 1:14,000, 42 x 34 inches.

2. SP-42 folder: compressed file containing DOGAMI Special Paper 42, Protocol for Inventory Mapping of Landslide Deposits from Light Detection and Ranging (Lidar) Imagery, by William J. Burns and Ian P. Madin -- included to provide background on how the landslide inventory data were prepared. The SP-42 file set consists of:

  1. Text report (print and onscreen versions), 30 p.
  2. "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
  3. Readme.txt file

from the Introduction on the map plate --
This map is an inventory of existing landslides in this area. The landslide inventory is one of the essential data layers used to delineate regional landslide susceptibility. This landslide inventory is not regulatory, and revisions can happen when new information regarding landslides is found or when future (new) landslides occur. Therefore, it is possible that landslides within the mapped area were not identified or occurred after the map was prepared.

This inventory map was prepared by following the Protocol for Inventory Mapping of Landslide Deposits from Light Detection and Ranging (Lidar) Imagery developed by Burns and Madin (2009) [Note: the protocol publication is included with this publication.] The three primary tasks included compilation of previously mapped landslides (including review of the Statewide Landslide Information Layer for Oregon, release 2 [Burns and others, 2011]), lidar-based morphologic mapping of landslide features, and review of aerial photographs. Landslides identified by these methods were digitally compiled into a GIS database at varying scales. Each landslide was also attributed with classifications for activity, depth of failure, movement type, and confidence of interpretation. The landslide data are displayed on top of a base map that consists of an aerial photograph (orthorectified) overlaid on the lidar-derived hillshade image.

This landslide inventory map is intended to provide users with basic information regarding landslides within the area. The geologic, terrain, and climatic conditions that led to landslides in the past may provide clues to the locations and conditions of future landslides, and it is intended that this map will provide useful information to develop regional landslide susceptibility maps, to guide site-specific investigations for future developments, and to assist in regional planning and mitigation of existing landslides.

References

Burns, W. J., and Madin, I. P., 2009, Protocol for inventory mapping of landslide deposits from light detection and ranging (lidar) imagery: Portland, Oreg., Oregon Department of Geology and Mineral Industries Special Paper 42, 30 p.

Burns, W. J., Mickelson, K. A., and Saint-Pierre, E. C., 2011, Statewide landslide information layer for Oregon (SLIDO), release 2: Portland, Oreg., Oregon Department of Geology and Mineral Industries Digital Data Series SLIDO-2, 41 p., 1 pl., scale 1:750,000.

Map plate

Open-File Report O-13-02, Landslide Inventory Map of the Harbor Hills Area, Curry County, Oregon