University of Natural Resources and Life Sciences, Vienna (BOKU) - Research portal
Gewählte Master / Diploma Thesis:
Mathias Hochschwarzer
(2009):
Vergleich von Simulationsmodellen zur Reichweitenabschätzung alpiner Murgänge am Beispiel südtiroler Ereignisse.
Master / Diploma Thesis - Institut für Alpine Naturgefahren (IAN),
BOKU-Universität für Bodenkultur,
pp 120.
UB BOKU
obvsg
FullText
- Abstract:
- Needs to predict the total travel length and especially the runout of debris flows emerge through requirements of modern natural hazard mapping and planning of other protective measures. The destructive impact caused by torrential processes in alpine regions endangers human lives and facilities, therefore the delineation of endangered areas and impacts of debris-flow events is important to support natural hazard assessment. The aim of this thesis is to apply the new developed two-dimensional prediction models TopRunDF and TopFlowDF and compare them with the more established programs RAMMS and FLATModel, which are based on the Voellmy approach. TopRunDF is based on an empirical relation between debris-flow volume and the planimetric area of the deposits and on a stochastic algorithm, the Monte Carlo simulation. TopFlowDF has additionally involved the approach of Takahashi (1991) to predict the one-dimensional runout of debris flows. Eight well-chosen events are simulated and the best-fit results are compared with each other. Furthermore one-dimensional approaches are applied to the whole data base of debris-flow events in South-Tyrol. The results are compared, analysed and some new relations of certain parameters can be gained.
- Beurteilende(r): Hübl Johannes