Project

Back to overview

SedyMONT - Analysis and modelling framework for sediment production and yield in mountain basins under climate change (IP6)

English title SedyMONT - Analysis and modelling framework for sediment production and yield in mountain basins under climate change (IP6)
Applicant Molnar Peter
Number 120467
Funding scheme Project funding (special)
Research institution Institut für Umweltingenieurwissenschaften ETH Zürich
Institution of higher education ETH Zurich - ETHZ
Main discipline Geology
Start/End 01.10.2009 - 30.09.2012
Approved amount 161'843.00
Show all

Keywords (15)

sediment production; sediment transport; sediment yield; sediment delivery; rainfall; linear system modelling; terrain analysis; hillslope-channel coupling; erosion; mountain basins; hydrology; geomorphology; Sediment production and transfer; Mountain basins; Landslides and rockfalls

Lay Summary (English)

Lead
Lay summary

This research project aims to quantitatively assess the variability in sediment yields in mountain basins across a range of timescales. There are two main aims:

(1) A data-driven conceptual modelling framework for sediment production, transfer, yield and their interactions is being developed. A systematic modelling framework will allow us to develop testable hypotheses about sediment dynamics in mountain basins, to objectively evaluate the sensitivity of different components of the system, and to analyse possible scenarios in climatic driving forces. Within this framework we will be able to address questions of space and time scales in sediment delivery and the role of landscape connectivity.

(2) The modelling framework is applied to the Illgraben basin, where a multidecadal scale dataset of over 2500 slope failures (landslides and rockfalls) has been developed within this project by digital photogrammetry. Hillslope and channel sediment resident times have been estimated and a dataset of debris flows elaborated. We aim to show that the stochastic nature of precipitation and other climatic variables together with the state of sediment stored in the system determine the debris flow dynamics in the basin and may be able to explain long-memory effects and complex response which are not obvious from observations of sediment yield alone.

Direct link to Lay Summary Last update: 21.02.2013

Responsible applicant and co-applicants

Employees

Associated projects

Number Title Start Funding scheme
165979 Forecast and warning concept for landslides in Switzerland based on rainfall triggering thresholds and multiscale hydrological modelling 01.10.2016 Project funding (Div. I-III)
140488 Step formation in steep mountain streams by blocking and self-organization of coarse grains in transport 01.10.2012 Project funding (Div. I-III)
144515 Analysis and modelling framework for sediment production and yield in mountain basins 01.10.2012 Project funding (Div. I-III)
144515 Analysis and modelling framework for sediment production and yield in mountain basins 01.10.2012 Project funding (Div. I-III)
147689 SEDFATE:Sediment fate in a changing watershed during the Anthropocene 01.02.2014 Sinergia

-