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A new approach for mapping landslide hazar … A new approach for mapping landslide hazard is developed by combining probabilities of landslide probability derived from a data-driven statistical approach and process-based model of shallow landsliding. Our statistical approach integrates the influence of seven site attributes on observed landslides using a frequency ratio method. Influential attributes and resulting susceptibility maps depend on the observations of landslides considered: all types of landslides, debris avalanches only, or source areas of debris avalanches. For each landslide type the frequency ration (FR) classification is converted into a Stability Index (SI), mapped across our study domain in the North Cascades National Park, WA. Using distributed landslide observations a continuous function is developed to relate local SI values to landslide probability. This probability is combined with spatially distributed probability of landsliding obtained from Landlab using a two-dimensional binning method that employs empirical and modeled based probabilities as indices and calculates empirical probability of landsliding at the intersections of bin ranges of the empirical and process-based probability domains. Based on this we developed a probabilistic correction factor to modeled local landslide probability. Improvements in distinguishing potantially unstable domain with the proposed model is quantified statistically.roposed model is quantified statistically. +
A new approach to mapping landslide hazards: a probabilistic integration of empirical and process-based models +
Seattle +
United States +
erkani@uw.edu +
Erkan +
University of Washington +
Istanbulluoglu +
4026130912 +
Image: +
2) BMI Live! +
4) Model Calibration with Dakota +
5) Will not attend a clinic +
Washington +
United States +
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01:04:08, 3 April 2019 +
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05:57:28, 3 April 2019 +
