Sitka debris flow hazards
Project Details
Project ID:
1553Nickname/Abbreviation:
Sitka landslideParent Project:
Unstable slopesStatus:
ActiveDescription:
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 EaProject Date(s):
2015 - presentPrimary Contact:
Wolken, Gabriel J.DGGS section:
Geologic HazardsAlternate 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. HerbstActive Related Sub-Projects:
Publications
- 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
Posters and Presentations
- Hubbard, T.D. and Daanen, R.P., 2025
- Hubbard, T.D., and Daanen, R.P., 2025, Debris flow hazard evaluation in Sitka, Alaska (poster): American Geophysical Union Conference, December 9-13, 2024: Alaska Division of Geological & Geophysical Surveys, 1 sheet. https://doi.org/10.14509/31474
