Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Computer assisted avalanche prediction using electronic weather sensor data
AbstractA nearest neighbour model was used to predict avalanches in two highway corridors in British Columbia, Canada. The model accepts hourly electronic weather sensor data dynamically to produce automated predictions of the probability that avalanches will occur in the next 12h. Output includes a list of nearest neighbours calculated by a Euclidian metric which provides information on patterns of avalanche activity in similar situations in the past. New variables are automatically generated from the hourly interval sensor measurements, including information about accumulated precipitation and maximum and minimum temperatures. A jackknife cross-validation routine generates fitness statistics by selecting test cases that are not temporally autocorrelated. The avalanche prediction system described here was applied operationally in Kootenay Pass, near Salmo, BC, and also at Bear Pass, near Stewart, BC, where accuracies of 76 and 72% were achieved respectively.
Computer assisted avalanche prediction using electronic weather sensor data
AbstractA nearest neighbour model was used to predict avalanches in two highway corridors in British Columbia, Canada. The model accepts hourly electronic weather sensor data dynamically to produce automated predictions of the probability that avalanches will occur in the next 12h. Output includes a list of nearest neighbours calculated by a Euclidian metric which provides information on patterns of avalanche activity in similar situations in the past. New variables are automatically generated from the hourly interval sensor measurements, including information about accumulated precipitation and maximum and minimum temperatures. A jackknife cross-validation routine generates fitness statistics by selecting test cases that are not temporally autocorrelated. The avalanche prediction system described here was applied operationally in Kootenay Pass, near Salmo, BC, and also at Bear Pass, near Stewart, BC, where accuracies of 76 and 72% were achieved respectively.
Computer assisted avalanche prediction using electronic weather sensor data
Cordy, P. (Autor:in) / McClung, D.M. (Autor:in) / Hawkins, C.J. (Autor:in) / Tweedy, J. (Autor:in) / Weick, T. (Autor:in)
Cold Regions, Science and Technology ; 59 ; 227-233
27.07.2009
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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