Michael H. Wimmer

Michael H. Wimmer
Bundesamt für Eich- und Vermessungswesen | BEV · Abteilung Fernerkundung

Master of Science

About

13
Publications
3,066
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34
Citations

Publications

Publications (13)
Article
Full-text available
This paper deals with the simulation of inundated areas for a region of 84,000 km² from estimated flood discharges at a resolution of 2 m. We develop a modeling framework that enables efficient parallel processing of the project region by splitting it into simulation tiles. For each simulation tile, the framework automatically calculates all input...
Article
Zusammenfassung Der vorliegende Beitrag beschreibt die Konzeption und die methodischen Schritte des Projekts HORA 3.0, in dem Hochwasserrisikoflächen für ganz Österreich berechnet wurden. Die Analyseschritte umfassen: Qualitätskontrolle und Korrektur des Gewässernetzes und der Einzugsgebietsgrenzen; Berechnung der Abflussscheitel und Frachten gegeb...
Article
Full-text available
Permafrost is being degraded worldwide due to the change in external forcing caused by climate change. This has also been shown to affect the morphodynamics of active rock glaciers. We studied these changes, depending on the analysis, on nine or eight active rock glaciers, respectively, with different characteristics in multiple epochs between 1953...
Article
Full-text available
Satellite-based long-term observations of vegetation cover development in combination with recent in-situ observations provide a basis to better understand the spatio-temporal changes of vegetation patterns, their sensitivity to climate drivers and thus climatic impact on proglacial landscape development. In this study we combined field investigati...
Article
Full-text available
Increasing river floods and infrastructure development in many parts of the world have created an urgent need for accurate high-resolution flood hazard mapping for more efficient flood risk management. Mapping accuracy hinges on the quality of the underlying Digital Terrain Model (DTM) and other spatial datasets. This article presents a processing...
Preprint
Full-text available
Abstract. Permafrost is being degraded worldwide due to the change in external forcing caused by climate change. This has also been shown to affect the morphodynamics of active rock glaciers. We studied these changes, depending on the analysis, on nine or eight active rock glaciers with different characteristics in multiple epochs between 1953 and...
Article
Full-text available
Despite the important role of fungi for ecosystems, relatively little is known about the factors underlying the dynamics of their diversity. Moreover, studies do not typically consider their dark diversity: the species absent from an otherwise suitable site. Here,we examined potential drivers of local fungal dark diversity in temperate woodland and...
Preprint
Full-text available
Despite the important role of fungi for ecosystems, relatively little is known about the factors underlying the dynamics of their diversity. Moreover, studies do not typically consider their dark diversity: the species absent from an otherwise suitable site. Here, we examined potential drivers of local fungal dark diversity in temperate woodland an...
Article
Full-text available
The interdisciplinary project "Between Land and Sea" combines geological, geomorphological and paleo-environmental approaches to identify archaeological remains of the Chekka region (Lebanon). In order to record the topography of this area, the first ever scientific airborne LiDAR data acquisition in Lebanon was conducted in autumn 2018. This work...
Article
In this paper, we present a real‐time technique to visualize large‐scale adaptive height fields with C ‐continuous surface reconstruction. Grid‐based shallow water simulation is an indispensable tool for interactive flood management applications. Height fields defined on adaptive grids are often the only viable option to store and process the massi...
Article
Full-text available
Structural measures for retaining and distributing water—i.e.; reservoirs, flood retentionand power plants—play a key role to protect and feed a growing world population in a rapidlychanging climate. In this work, we introduce an automated method to detect potential reservoir orretention area locations in digital terrain models. In this context, a...
Thesis
Full-text available
Optical methods for high resolution shallow water depth estimation are currently in a phase of rapid development driven by technical progress and growing interest in several scientific fields. Throughout the last years a diversity of potential applications has driven the creation of evolved methods and sensors. However, this trend primarily concern...

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Projects

Project (1)
Project
Visdom is a software that combines visualization, simulation, and analysis techniques to assist decision making. The most prominent application concerns flood management, where a fruitful collaboration with several involved organizations has been established. The software is being developed in a number of research projects headed by the VRVis Vienna, the Institute of Hydraulic Engineering and Water Resources Management at the University of Technology in Vienna.