Landslide Hazard Modeling in the Skagit Basin

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Created: Feb 16, 2018 at 9:56 p.m.
Last updated: Aug 19, 2020 at 10:08 p.m.
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Content types: Geographic Feature Content  Geographic Raster Content 
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A study of landslide probability in Skagit Basin as a collaboration (MOA) between University of Washington and Seattle City Light (SCL). The project's objective is to better understand landslides in the watersheds containing the electrical transmission lines and facilities of SCL's Skagit Hydroelectric Project. A recently completed landslide model (Strauch et al. 2018) will be run using subsurface flow derived from a basin calibrated hydrologic model (Distributed Hydrology Soil and Vegetation Model - DHSVM) at 150-m grid resolution. The modeling will estimate contemporary and future probability of landslide initiation and create landslide hazard maps at a 30-m resolution. Future hydrology will be generated from running DHSVM with future climatology from two different Global Climate Models (GCMs) with two different representative concentration pathways (RCPs) emission scenarios for two future time periods. The analysis will also evaluate the sensitivity of the landslide model to subsurface flow and reduced cohesion simulating a fire.

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Resource Level Coverage


Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
North Cascades - Skagit River Watershed
North Latitude
East Longitude
South Latitude
West Longitude


Data Services

The following Open Geospatial Consortium Web Services are available for this resource. The links below can be copied and pasted into Geographic Information Systems software programs to access geospatial data included within this resource.


Related Resources

The content of this resource serves as the data for:
The content of this resource is part of: Slippery Future Landlab Landslide Code
The content of this resource is part of: Slippery Future Landlab Landslide Data
The content of this resource is part of: Skagit River Basin DHSVM model instance 2020
This resource is described by: Skagit River Basin DHSVM Data Sharing Agreement


Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
Seattle City Light A131426

How to Cite

Strauch, R., C. Bandaragoda, C. Raymond, N. Cristea (2020). Landslide Hazard Modeling in the Skagit Basin, HydroShare,

This resource is shared under the Creative Commons Attribution CC BY.


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