Process based modelling of mesoscale pre-alpine catchments

Lecturer (assistant)
Number0000000603
TypeLecture
Duration4 SWS
TermWintersemester 2023/24
Language of instructionEnglish
Position within curriculaSee TUMonline
DatesSee TUMonline

Dates

Admission information

Objectives

At the end of the module, students are able to understand the main processes in pre-alpine catchments like snow processes as well as runoff generation, runoff concentration and flood routing processes. Additionally, they are able to understand different methods for the calculation of these processes. Moreover, students are able to use a physically based hydrological model and a 2d hydrodynamic-numerical model to simulate the rainfall runoff process in pre-alpine catchments and its influencing parameters caused by the special circumstances of these regions in a widely realistic and transparent way. The students are able to generate event based scenarios as well as land use scenarios and based on this to evaluate different flood mitigation strategies for such regions.

Description

1) Dominant hydrological processes in pre-alpine catchments: Precipitation types and snow processes; runoff generation, concentration and flood routing 2) Data in small alpine catchments: availability, quality, acquisition and analysis 3) Types of hydrological and hydraulic models and applicability in pre-alpine catchments 4) Generation, parameterization and calibration of the process based hydrological model WaSiM 5) Model sensitivity analyses with focus on interpolation of the meteorological input, snow processes and runoff concentration 6) Process based modeling of the flood routing processes using the 2D-hydrodynamic-numerical model HYDRO_AS-2D 7) Analysis of the water balance influenced by different land use and climatic boundaries 8) Quantification of the effectiveness of flood mitigation measures using the (coupled) modeling approach

Prerequisites

Basic knowledge in hydrology and hydraulics

Teaching and learning methods

Lectures, block seminar and exercises

Examination

The exam consists of two evenly weighted parts: The first part is a written group report on the theoretical background and the application of the two presented models including preprocessing, model generation and results. The results have to be presented to the class (ca. 5 minutes per person in the group). The second part is an oral exam of 20 minutes about all lecture topics with questions regarding the theory of the models and calculation methods. Auxiliary means are not allowed.

Recommended literature

DeWalle, D.R. & Rango, A. (2008): Principles of snow hydrology. Cambridge University Press, Cambridge and UK and New York. Hydrotec Ingenieurgesellschaft mbH & M. Nujić (2014): Benutzerhandbuch HYDRO_AS-2D - 2D-Strömungsmodell für die wasserwirtschaftliche Praxis. Aachen, November 2014 Schmocker-Fackel, P., Naef, F. & Scherrer, S. (2007). Identifying runoff processes on the plot and catchment scale, Hydrol. Earth Syst. Sci., 11, 891 - 906. www.hydrol-earthsyst-sci.net/11/891/2007/. Schulla, J. (2014): Model Description WaSiM: Water balance Simulation Model. Zürich. Warscher, M., Strasser, U., Kraller, G., Marke, T., Franz, H. & Kunstmann, H. (2013): Performance of complex snow cover descriptions in a distributed hydrological model system: A case study for the high Alpine terrain of the Berchtesgaden Alps. In: Water resources research 49 (5), pp. 2619-2637.

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