The 22nd Northern Research Basins Symposium/Workshop was held in Yellowknife, Canada (by the Great Slave lake, one of the 10 largest fresh water lakes on the planet), from August 18th to August 24th 2019. There, Oddbjørn (project leader) and Adina (work package 2) presented their research regarding hydrology and hydraulics of flash floods in steep rivers.
A pannel of discussion was organized on the last two days, which led to very enriching and insightful discussion regarding how to better collaborate and achieve synergies among local field knowledge and the scientific community. Attendees were indigenous experts, the scientists presenting during the conference and the local pannelists invited.
The conference agenda included social activities, such as a boat trip to visit the indigenous Dene community nearby, learn about their traditions and how to use natural and forest resources and appreciate what nature has to offer. We got the chance to go on a guided tour around artsy Yellowknife, always accompanied by live fiddle music. Lastly, a banquet was held and a visit to Scotty creek closed the conference on Saturday.
Oddbjørn’s presentation is titled “How extreme can specific runoff become in steep Norwegian catchments?” and covers the complex hydrology around the flood event that affected his hometown, Utvik, exactly two years ago, in July 2017. This data has been used to simulate the hydraulics and morphodynamics of the affected rivers both in Utvik and the neighbour village, Innvik, in the poster Michal and Oddbjørn presented at EGU in April this year.
Adina’s presentation is titled “River idealization for identification of critical locations in steep rivers using 2D hydrodynamic modelling and GIS” and tackles the characterization of any named steep river’s susceptibility to changing conditions, such as extreme rainfalls. The preliminary idealization of scenarios allows to detect parameters and sensitive areas worth focusing on during more detailed studies (such as channel bends) without the interference of case-specific hydrologic and topographic conditions. The study is time and cost-saving oriented, aiming at optimizing flood risk analysis.
Both presentations will take place on the first day of the conference, Monday 18th of August. We will update with anecdotes on this event; stay tuned!
Besides the different laboratory sessions (i.e. Particle Tracking Velocimetry, Particle Image Velocimetry, Acoustic Doppler Velocimetry, Laser Doppler Anemometry, Ultrasonic Pulse Velocimetry, Wave Gauges Pressure Transducers) held at the Laboratory of Hydraulic Engineering (LIDR-DICAM), a field trip to River Po Interregional Agency (AIPO, Boretto) was organized. There, measurements velocity profiles and river bed topography were taken by means of a UAV (Unmanned Aquatic Vehicle) with mounted ADCP (Acoustic Doppler Current Profiler), as well as a survey boat tour. Different scale hydraulic laboratory experiments were also visited.
Adina and Michal had the opportunity to present their research during the peer-2-peer session. Adina talked about the Optimization of hydrodynamic simulations in steep rivers, whereas Michal focused on Erosion protection in steep rivers.
The feedback received during their presentation, as well as the knowledge acquired regarding the different techniques, are of great value to the World of Wild Waters. For instance, fieldwork campaigns and laboratory experiments will be implemented for data gathering, callibration of hydromorphodynamic simulations and further flood risk analysis of selected study cases at different spatio-temporal scales. Getting to know new methodology has extended Work Package 2’s perspective on both optical and acoustic state-of-the-art laboratory and field measurement equipment.