Recently the homepage of the European network of hydrological observatories - short 'ENOHA' was launched. The aims of ENOHA are to create a network of well-instrumented and monitored hydrological observatories and to ensure a close cooperation between several European research institutions.
The linked catchments are the TERENO catchments in Germany, the HOBE catchment in Denmark, and the HOAL catchment in Austria. Data series of key hydrological fluxes and states in high quality based on a common data policy from these catchments will be provided within this project.
For more information visit https://www.enoha.eu/.
Recently Lovrenc Pavlin, new doctoral student from Slovenia in our DK programme, was operating a sampling from the groundwater wells from the deep boreholes in the HOAL catchment.
In total at 6 wells samples have been taken which will be analysed for chemical parameters but also for stable isotopes and age dating.
Nives Balenovic, doctoral student from Croatia working in a cooperation project from IKT Petzenkirchen, BOKU Vienna and CTU Prague, started recently her PhD about 'Kinetic energy of rainfall as driving force of soil detachment and transport' (also known as splash erosion).
She is doing her field experiments in the HOAL catchment, where she installed so called splash cups for analysing the kinetic energy of rainfall. Due to the installations in the HOAL she can also take use of the data of the climate station and the present weather sensor, which is measuring raindrop and rainfall characteristics (size, velocity, distribution and intensity).
If heavy rainfall occurs it hits the soil in the soil cups and erodes the soil. The eroded soil is collected in the outer bucket and quantitative determined. Also the surface changes of the soil cups and the soil loss in the cups are analysed via photogrammetry.
Rasmiaditya Silasari recently published her paper in the journal 'Hydrological Processes'. The paper is about the potential of high temporal resolution time‐lapse photography for mapping the dynamics of saturation areas on the hillslope scale during natural rainfall. This link leads you to the paper.
Giorgio Nicchi and Tommaso Picciafuoco, guests students from University of Perugia, Italy are continuing with infiltrometer measurements in the HOAL. Since now most of the parts of the catchment have been harvested recently, they can cover a large percentage of the catchment with the planned measurements (see map). The measurements will happen in the next weeks and per spot 9 repetitions in a 3x3 raster are planned.