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Research project (§ 26 & § 27)
Duration : 2020-01-15 - 2020-09-14

The catchment of the torrent Naarn shows a high degree of forsted area and therefore a huge amount of woody debris can be mobilized during floods. Further downstream this material can cause clogging effects at culverts and bridges, as it could be seen during the flood of 2002 in the municipality of Perg. The goal of the study is to test a new filtering structure that has been developped by students within the lecture of structural exercises.
Research project (§ 26 & § 27)
Duration : 2019-12-01 - 2020-11-30

Among other things, the implementation of this research contract serves to expand the core competencies of the BOKU and the Institute for Alpine Natural Hazards in the field of vulnerability research and investigations of dynamic risk systems. Following this goal, the following research questions arise as motives for the development of the project: By using various data available to the BMNT, the current practice of the KNU could be operationalised, which scientific challenges exist with regard to (a) the analysis of the damage potential, and (b) the question of the susceptibility of different damage potential categories to damage. In addition, it will be examined how investments in protective measures can be scientifically correctly mapped in the current low-interest period. The following steps are planned: Evaluation of the previous approach of the KNU of the Department of Water Resources Management and - based on a scientific desktop review - proposal of adaptations; in particular with regard to an automated evaluation of endangered objects, relevant damage functions as well as the question of the level of discounting. Further work includes the analysis of endangered objects with regard to number and type on the basis of geodatabases, as well as the sensitivity of the results obtained with regard to general and specific uncertainties, which have an immanent influence on the cost-benefit ratio.
Research project (§ 26 & § 27)
Duration : 2019-11-01 - 2022-10-31

Processes like fluvial flows and debris flows can represent extreme events in torrential catchments, causing regularly loss of lives and substantial damage to settlements and infrastructure in mountain regions. There are two major shortcomings of current approaches that limit a more reliable assessment of climatic and topographic controls on torrential events in Austria: (1) the factors influencing sediment availability are poorly understood, and (2) most approaches neglect the actual initiation mechanism and its connection to hydro-meteorological trigger conditions. In this follow-up project we aim to improve both aspects. Building on an exceptional rich time-series of torrential events in Austria and on the outcomes of the DEUCALION II project (ACRP 7th call) on hydro-meteorological trigger conditions over long time scales, we want to investigate the missing geomorphological component and develop a coupled hydro-meteorological / geomorphological framework for the assessment of torrential flows in Austria.

Supervised Theses and Dissertations