Landslide susceptibility maps – Dominica, 2025
Description
Science Case Name |
Multi-hazards in the Caribbean SIDS |
Dataset Name/Title |
Landslide susceptibility maps – Dominica, 2025 |
Dataset Description |
Landslide susceptibility maps |
Key Methodologies |
As the basis for the landslide susceptibility assessment a data layer was generated that represents homogeneous terrain units. Initially an attempt was made to generate these automatically, using the r.slopeunits application, which generates Terrain Units using a set of parameters from a Digital Elevation Model. To compute the susceptibility, we opted for a terrain unit partition and for the implementation of statistical models, in combination with expert-based mapping. These models learn from past events (and specifically from past landslide occurrences) to find patterns with respect to a set of predisposing factors. On the basis of these patterns a prediction is then made on the expected unstable locations in the future. To assess the susceptibility, we used a statistical model known as binomial Generalized Linear Model or Logistic Regression. |
Temporal Domain |
The maps are generated for the current situation (2025). |
Spatial Domain |
The maps cover the country of Dominica. |
Key indicators |
Landslide susceptibility classes (Very low, Low, Moderate, High, Very high). |
Data format |
GeoTIF |
Source data |
The maps were generated by the University of Twente |
Accessibility |
|
Stakeholder Relevance |
Identifying area affected by landslide and expected unstable area for future planning of landuse and mitigation measures |
Limitations/Assumptions |
The maps does not provide information on the actual landslide runout, and focuses on the initiation zones, based on the Geomorphological units |
Additional Output/Information |
NA |
Contact Information |
University of Twente, Cees van Westen & Luigi Lombardo |
Files
Landslide Inventory and susceptibility maps_Dominica_2025.zip
Files
(2.5 MB)
Name | Size | Download all |
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md5:20193440ce05e863318272e20c6c5005
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2.5 MB | Preview Download |
Additional details
Funding
- European Space Research Institute
- EO4Multihazards (Earth Observation for High-Impact Multi-Hazards Science), funded by the European Space Agency and launched as part of the joint ESA-European Commission Earth System Science Initiative