0.08 m/a from 2014 to 2016 surpassing rates in deeply weathered bedrock reaches by an order of magnitude (approx. Torrent reaches in instable glaciofluvial sediments of the last glaciation show high average erosion rates of ca. To explain seasonal variations we evaluate precipitation and discharge data from a dense station network as storm precipitation and runoff events are the main triggers of torrent sediment mobilization. These measurements are interpreted based on the geomorphic map to derive a catchment-wide seasonal sediment budget. We apply modern near-range measuring techniques (TLS, Structure from Motion) to monitor erosion rates from representative erosion sites and sediment delivery rates at the outlet since 2014. Geomorphic mapping is used to identify primary bedload sources on slope as well as patterns of lithology, slope-channel coupling and vegetation conditioning erosion intensity. We present a concept to quantify the sediment cascade's components and influencing factors for the Schöttlbach torrent - a 71 km2 non-glaciated catchment in the Niedere Tauern mountain Range in Styria, Austria. It is important to understand where critical sediments are mobilized, how much bedload is delivered to the outlet and what controls the variability. They frequently pose serious risks and damage in the densely populated East Alpine Region. Steep alpine headwater torrents are characterized by episodic heavy floods and bedload pulses triggered by local high-intensity mountain rainstorms. Lutzmann, Silke Stangl, Johannes Sass, Oliver This paper will present the procedure and the method of torrent classification.Ī mountain river sediment cascade and its controls: the Schöttlbach torrent, Styria The above torrent classification is the base on which a set of optimisation calculations is developed for the required scope of erosion- control works and measures, the application of which enables the management of significantly larger erosion and torrential regions compared to the previous period. The method makes it possible for each torrent, regardless of its magnitude, to be simply and recognizably described by the 'Formula of torrentially'. The module enables the identification of hydro graphic, climate and erosion characteristics. One of the modules of that complex method was focused on torrent classification. Gavrilovic, Zoran Stefanovic, Milutin Milovanovic, Irina Cotric, Jelena Milojevic, Mileta, E-mail: complex methodology for torrents and erosion and the associated calculations was developed during the second half of the twentieth century in Serbia. This paper will present the procedure and the method of torrent classification.Įnergy Technology Data Exchange (ETDEWEB) Gavrilovic, Zoran Stefanovic, Milutin Milovanovic, Irina Cotric, Jelena Milojevic, MiletaĪ complex methodology for torrents and erosion and the associated calculations was developed during the second half of the twentieth century in Serbia. International Nuclear Information System (INIS) Torrent classification - Base of rational management of erosive regions
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