EXTRUSO - Extreme events in small and medium-sized catchments
The continuous warming of the atmosphere due to climate change leads to an intensification of the water cycle and thus to an increasing variability of the future climate.
Therefore, a higher probability for the occurrence of heavy rain events and resulting hydrological extreme events must be expected in the future. These extremes, which usually occur on a small scale, are difficult to observe. Neither the precipitation measurement network, nor the water level measurement network in Saxony have a sufficient density for recording and predicting such events. Furthermore, data from precipitation radar is associated with too great uncertainties, while satellite remote sensing and numerical weather forecast models have a low resolution, making it equally insufficient for smaller scales. In Saxony, for example, there is no early flood warning system for small-scale extreme events.
This is where the EXTRUSO project comes in: Using examples of small and medium-sized catchments, innovative techniques are developed for the spatially and temporally high-resolution observation and simulation of extreme events occurring in small areas. Within the framework of a cooperation between the Chairs of Hydrology, Meteorology, Photogrammetry and Geoinformatics, new forms of operational monitoring systems are developed. The technical foundation for these are application-specific remote sensing techniques, modern low-cost sensors and geoinformation technologies. At the same time, historical analyses and predictive modelling of small-scale extreme events with different climate scenarios should help to improve the estimation of expected effects of climate change. The resulting information bases serves as a basis for developing early warning systems and future adaptation strategies.
Duration: 2016 - 2019
Funded by: ESF - Europäischer Sozialfonds für Deutschland
