Using high-precision bathymetric data from airborne hydromapping in hydraulic and habitat modeling | Einsatz hochauflösender Bathymetriedaten aus luftgestützter Vermessung in der Abfluss- und Habitatmodellierung
2014
Jocham, Stefan | Dobler, Wolfgang | Baran, Ramona | Aufleger, Markus | Steinbacher, Frank
Bathymetric surveys are an essential basis for investigations in river hydraulics. In this context, ecohydraulic studies represent an interpretation of the hydraulic situation in running waters with regard to the living conditions for their flora and fauna. With increasing computational performance and powerful models for describing the hydraulic situation, the expectations for basic surveys are rising. Against this backdrop and further reinforced by the stipulations of the European Water Framework Directive, the technology of Airborne Hydromapping (surveying with a water-penetrating laser system) was developed.With this technology it is possible to survey water bodies and riparian strips comprehensively and in high resolution (10–40 points/m²). The data generated can in turn be used to create detailed, high-resolution calculation meshes and therefore to accurately describe the hydraulic conditions in large river reaches. It can be used in both small-scale and large-scale contexts (e.g. habitat modeling or structural analysis), and also opens new avenues for monitoring applications.
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