On 17th of April there was a big maintenance at the HOAL weather station with repairing and maintaining equipment like humidity, temperatur and wind sensors. Casings of data and power supply cables were checked for damages, which e.g. sometimes can occur by animals. Also the weather conditions in winter can cause broken cables which needs to be repaired.
Professor Thomas Dunne is an expert of fluvial geomorphology and hydrology, working at the University of California, where he is currently conducting his own research in theoretical studies in hillslope evolution, and sediment transport and river-basin sediment budgets. On Monday, the 15th of April, the Institute of Hydraulic Engineering and Water Resources Management (TU Wien) under the direction of Prof. Günter Blöschl, and the Federal Agency of Water Management (BAW) had the pleasure of hosting him for a meeting on the responsibilities of the Hyrological Open Air Laboratory (HOAL), and an introduction of the Vienna doctoral Programme on Water Resource Systems managed by the Vienna Technical University.
In October Geophysics students from TU Wien were operating electromagnetic induction (EMI) measurements at the HOAL.
Two devices with a shallow and a deep range of the signal have been used. There were several profiles on the different fields in the HOAL measured and georeferenced. The goal is to further characterize the soil's spatial heterogenities in the electrical conductivity down to around 5m depth by using this contact-less probes.
For getting information about groundwater new piezometer stations are built. In this case the stations will be used for tracer tests.
Considering building these stations, soil samples were taken for soil characteristics and isotope analyses.