High-resolution information on the depth conditions of the Wiese estuary near Basel was required as part of hydraulic engineering measures to estimate bedload dynamics and for modeling purposes. eQcharta GmbH carried out recordings with an Acoustic Doppler Current Profiler (ADCP) in two consecutive years. This enabled the assessment of the bathymetry and water depths and the resulting erosion and deposition patterns in high resolution.
At two points in time before and after the floods, detailed recordings of the depth distribution (one measurement point per second) along several longitudinal and transverse transects were carried out with dGPS coupled ADCP mounted on a boat, including the measurement of the water level line with RTK GPS. The data was interpolated in the GIS for the entire section in order to obtain the bathymetry. In comparison with a so-called difference model, the erosion and deposition surfaces were derived to determine the bedload displacement and to calibrate and validate a bedload transport model.
In his many years of work in applied ecosystem research, spatial analysis, remote sensing and risk management in science and practice, Michael has implemented a wide range of projects, especially in restoration and the rehabilitation of hydropower. This resulted in the foundation of eQcharta GmbH as an Eawag spin-off in 2013 and since 2014 in his work as a lecturer in ecohydrology at the ZHAW.
Diego has many years of scientific and practical experience in applied ecosystem research, spatial analysis, method development and consulting, which he has successfully implemented in various projects on ecological restoration, hydropower rehabilitation and impact monitoring. He has also been a lecturer in ecohydrology at the ZHAW since 2015.
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