Sitka debris flow hazards

Project Details

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• Project ID:

  1553

• Nickname/Abbreviation:

  Sitka landslide

• Parent Project:

  Unstable slopes

• Status:

  Active

• Description:

  Response to August 18, 2015, Kramer (Harbor Mountain) landslides, Sitka, Alaska. Subsequent work to coordinate initial lidar data collection by the Army Corps of Engineers Cold Regions Research and Engineering Laboratory (CRREL) in Sitka, and conduct subsequent DGGS lidar data collection. Lidar imagery and field data are being used to evaluate potential landslide hazards. CRREL lidar data collection funded by the National Park Service (Grant # P15AC01879) and DGGS lidar data collection was funded by State of Alaska General Fund and National Park Service (Grant #P17AS00903); lidar analysis and landslide evaluation funded by FEMA (2016 CTP Grant # EMS-2016-CA-0006).
  This study aims to develop a debris flow hazard map for the City of Sitka. We use lidar, field observations, and computer modeling to understand where debris flows could happen in the future. Follow-on work funded by RAND Corporation to collaborate with Sitka Sound Science Center and other partners to develop Landslide Ea

• Project Date(s):

  2015 - present

• Primary Contact:

  Wolken, Gabriel J.

• DGGS section:

  Geologic Hazards

• Alternate Url:

  Find out more...

• Project Participants:

  De Anne S. P. Stevens, Trent D. Hubbard, Gabriel J. Wolken, Alex I. Gould, Erin N. Whorton, Ronnie P. Daanen, Katreen M. Wikstrom Jones, Andrew M. Herbst

• Active Related Sub-Projects:

  • • Sitka early warning system development - (2019)

Publications

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RDF 2020-13

Daanen, R.P., Wolken, G.J., and Herbst, A.M., 2020, Lidar-derived elevation data for Sitka, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2020-13, 11 p. https://doi.org/10.14509/30531