Our new article dealing with dendrogeomorphic methods, hydraulic simulations and large grains located in channel bed of a steep headwater stream was published by Water journal. We focused on the role of a high-magnitude flash flood event (perhaps 100y recurrence interval) and related morphological changes in the channel. Namely, we used an integrated approach that included the dendrogeomorphic reconstruction of past flood activity, hydraulic modelling of the 2014 flash flood parameters using a two-dimensional IBER model, and evaluation of the channel stability using sedimentological parameters. Based on this approach, we observed that the excess critical unit stream power had occurred at only one-quarter of the studied cross-sections. It implies that despite local damage during the last flood, our results suggest relatively stable geomorphic conditions and gradual development of stream channels under discharges similar to that in 2014.
The article is ready for download here.
Tichavský, R., Ruman, S., Galia, T. (2020): Hydrogeomorphic impacts of floods in a first-order catchment: Integrated approach based on dendrogeomorphic palaeostage indicators, 2D hydraulic modelling and sedimentological parameters. Water 12(1), 212. https://doi.org/10.3390/w12010212
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| Results of 2D hydraulic simulations |
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