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Introduction
Current institution
GEOCHANGE Consulting
Current position
- CEO
Publications
Publications (72)
The "ONR 24810: Technical Rockfall Protection – Terms, Impacts, Design and Structural Development, Monitoring, and Maintenance" provides a comprehensive technical guideline for planning and dimensioning of technical rockfall protection measures in Austria. This standard encompasses all steps in mitigation planning, from site assessment and impact a...
Hundreds of gravitational mass movements were triggered in Carinthia (Austria) in the course of a four-day heavy precipitation event. This extreme precipitation event were preceded by a period of rainfall over several weeks, which led to a high degree of soil soaking. In addition to floods and mudflows, the dominant gravitational mass movements wer...
Rockfall data and statistics are used on rockfall hazard zonation. The poster summarizes lessons learned by analyzing different datasets with respect to collection methods.
Historical rockfall catalogues are important data sources for the investigation of the temporal occurrence of rockfalls, which is crucial information for rockfall hazard and risk assessments. However, such catalogues are rare and often incomplete. Here, we selected and analysed seven catalogues of historical rockfalls in Austria, Italy, and the USA...
This contribution summarizes existing challenges in the implementation of a standardised procedure for natural hazard risk analysis and zoning in the Alps. The discussion focuses on (i) the impact of data acquisition strategies on the quality of input data, (ii) the applicability of different 3D rock fall simulation models for hazard zoning in diff...
Historical rockfall catalogues are important data sources for the investigation of the temporal occurrence of rockfalls, which is a crucial information for rockfall hazard and risk assessments. However, such catalogues are rare and often incomplete. Here, we analyse seven catalogues of historical rockfalls in Austria, Italy, and the USA to highligh...
In mountain areas, wildfires are among the most important natural disturbances. In addition to the disruption of the vegetation cover or the impairment of the protective forest function, the high temperatures also have considerable physical and chemical effects on the soil and rockmass structure. This results in an increased susceptibility to geohy...
On 11 and 12 October 2022, the first interdisciplinary expert meeting on the geohydrological consequences of wildfires in the Alpine region took place in Klagenfurt (Austria). The meeting included various presentations (see programme) and an excursion to verify the impacts of the forest fire of July 2022 along the railway corridor in the karst area...
Das Laserscanning und die Photogrammmetrie haben sich in den letzten 20 Jahren einen festen Platz im Vermessungswesen erarbeitet. Obwohl das zu Grunde liegende technologische und geometrische Prinzip den heute üblichen Tachymetern teilweise sehr ähnlich ist, unterscheidet sich die grundsätzliche Aufnahme und Datencharakteristik sehr deutlich von de...
La distribuzione delle dimensioni delle cadute massi è utilizzata in Austria per la progettazione di opere di mitigazione per la protezione contro le cadute massi. I dati sulle dimensioni delle cadute massi sono spesso incompleti. Ciò è dovuto principalmente al fatto che la raccolta di dati in prossimità delle pareti rocciose soggette a fenomeni di...
Rockfall frequency size distributions are used in Austria for the definition of a design block for the planning of technical rockfall protection. Rockfall size datasets are often incomplete. Here, we study fifteen catalogues of rockfall size in Austria, Italy, and the USA to analyse the impact of the data collection and mapping methods on the repre...
In the eastern Alps, no previous research focused on the impact of wildfires on the occurrence of rockfalls. The investigation of wildfires and post-wildfire rockfalls gains new importance with respect to changes in weather extremes and rapid social developments such as population growth and tourism. The present work describes a wildfire that occur...
Within the framework of the research project "Hazard modeling of fall processes in Lower Austria" (NoeTALUS) different remote sensing techniques have been
(Fig.1) used for structural geological mapping and compared with each other. In order to ensure the highest possible quality of the remote sensing data, the data collection was carried out in coo...
Remote sensing methods, such as Laser Scanning, have established a solid position in geological surveying over the past 12 years. Although the underlying technological and geometric principle is very similar to today's tachymeters, the basic recording and data characteristics are very different from traditional geodetic surveying. This opens up are...
This contribution summarizes challenges in the implementation of a standardised procedure for rock fall hazard zoning in Austria. The discussion focuses on the impact of mapping strategy applied to rock size distributions and the frequency of rock fall, the applicability of different 3D rock fall simulation models for hazard zoning in different top...
Mount Plassen is situated west of the Hallstatt village (Upper Austria), and is composed of Jurassic limestone, which overlies Permotriassic fine-grained clastic rocks and evaporates (mainly part of the so-called Haselgebirge). This geotechnical predisposition causes rock spreading of the harder and rigid limestone on the weak, mainly clayey rocks....
In times of decreasing financial resources, the demand for the investment in protection measures with a positive return on investment is of high importance. Hazard and risk assessments are essential tools in order to ensure an economically justifiable application of money in the implementation of preventive measures. Many areas in the Eastern Alps...
The central Tauern Window and the adjacent Austroalpine Unit are characterized by complex tectonic, geological and geomorphologic settings that result in a variety of different hillslope processes. Most scientific studies in the literature about slope instabilities in the Tauern Window focus on single slopes only. The present work is a first attemp...
The Alps are among one of the most beautiful but also most dangerous natural landscapes of Europe. Approximate 70 percent of the Austrian territory are situated in the young and slowly ascending Eastern Alps, where the impact of geomorphological processes, such as gravitational mass movements, often result in catastrophies , causing considerable ec...
The Alps are among one of the most beautiful but also most dangerous natural landscapes of
Europe. Approximate 70 percent of the Austrian territory are situated in the young and slowly
ascending Eastern Alps, where the impact of geomorphological processes, such as
gravitational mass movements, often result in catastrophies , causing considerable ec...
The Alps are among one of the most beautiful but also most dangerous natural landscapes of
Europe. Approximate 70 percent of the Austrian territory are situated in the young and slowly
ascending Eastern Alps, where the impact of geomorphological processes, such as
gravitational mass movements, often result in catastrophies , causing considerable ec...
A structural geological assessment of cliffs in terms of rock fall susceptibility is expensive and time-consuming particularly in remote areas (exposed cliffs) where it may even be impossible. Hence it is important to develop methods and strategies that can be used to extrapolate the acquired knowledge from representative sub-regions to the whole s...
An important step in rockfall hazard analysis is the delineation of potential maximum runout distances. Different approaches exist to determine the runout zones of rock falls varying from empirical models to 2D and 3D process- based models. Depending on the research goal, spacial scale, and quality of available input data, the appropriate model app...
Die genaue Erfassung und nachvollziehbare Bewertung des Gefahrenpotentials von
Sturzprozessen anhand von standardisierten Methoden und Techniken ist im Hinblick auf eine nachhaltige Entwicklung des Siedlungs- und Nutzungsraums und der Planung bestmöglicher Schutzmaßnahmen im alpinen Bereich von hoher Bedeutung. Im Rahmen des Projektes “Naturgefahre...
A rock fall prone area in Carinthia (Austria) was chosen to develop a methodological, easy to apply strategy to identify potential rock fall source areas and run-out zones. On the basis of an evaluation method, the study area could be classified according its susceptibility towards potential rock fall occurrence. Method development included continu...
The present study for the "Bucklige Welt- Wechselland" area, a mountainous region of about 1300 km² in the eastern part of Austria, was conducted under the authority of the Austrian Service for Torrent and Avalanche Control (WLV). The ultimate ambition of this study was directed towards the improvement of regional expertise by developing susceptibi...
In Germany, currently there is a risk of energy shortages due to insufficient domestic resources and hence import dependency. The focus of this paper is on whether biofuels as part of the Risk Management Strategy are able to contribute to the security of fuel-supply for the German society and whether they are able to minimise the risk of shortages...
A presentation to 15 decision Fijian decision makers
