Peter Molnar: Catalogue data in Autumn Semester 2020

Award: The Golden Owl
Name Prof. Dr. Peter Molnar
Institut für Umweltingenieurwiss.
ETH Zürich, HIF D 20.1
Laura-Hezner-Weg 7
8093 Zürich
Telephone+41 44 633 29 58
DepartmentCivil, Environmental and Geomatic Engineering
RelationshipAdjunct Professor

102-0237-00LHydrology II Information Restricted registration - show details 3 credits2GP. Molnar
AbstractThe course presents advanced hydrological analyses of rainfall-runoff processes. The course is given in English.
ObjectiveTools for hydrological modelling are discussed at the event and continuous scale. The focus is on the description of physical processes and their modelisation with practical examples.
ContentMonitoring of hydrological systems (point and space monitoring, remote sensing). The use of GIS in hydrology (practical applications). General concepts of watershed modelling. Infiltration. IUH models. Event based rainfall-runoff modelling. Continuous rainfall-runoff models (components and prrocesses). Example of modelling with the PRMS model. Calibration and validation of models. Flood routing (unsteady flow, hydrologic routing, examples). The course contains an extensive semester project.
Lecture notesParts of the script for "Hydrology I" are used. Also available are the overhead transparencies used in the lectures. The semester project consists of a two part instruction manual.
LiteratureAdditional literature is presented during the course.
102-0287-00LFluvial Systems Information 3 credits2GP. Molnar
AbstractThe course presents a view of the catchment processes of sediment production and transport that shape the landscape. Focus is on sediment fluxes from sources on hillslopes to the river network. Students learn about how a fluvial system functions, how to identify sediment sources and sinks, how to make predictions with numerical models, develop sediment budgets, and quantify geomorphic change.
ObjectiveThe course has two fundamental aims: (1) The first aim is to provide environmental engineers with the physical process basis needed to understand fluvial system change, using the right language and terminology to describe landforms. We will cover the main geomorphic concepts of landscape change, e.g. thresholds, equilibrium, criticality, to describe change. Students will learn about the importance of the concepts of connectivity and timescales of change. (2) The second aim is to provide quantitative skills in making simple and more complex predictions of change and the data and models required. We will learn about typical landscape evolution models, and about hillslope erosion model concepts like RUSLE. We will learn how to identify sediment sources and sinks, and develop simple sediment budgets with the right data needed for this purpose. Finally we will learn about methods to describe the topology of river networks as conduits of sediment through the fluvial system.
ContentThe course consists of four sections: (1) Introduction to fluvial forms and processes and geomorphic concepts of landscape change, including climatic and human activities acting on the system. Concepts like thresholds, equilibrium, self-organised criticality, etc. are presented. (2) Landscape evolution modelling as a tool for describing the shape of the land surface. Soil formation and sediment production at long timescales. (3) The processes of sediment production, upland sheet-rill-gully erosion, basin sediment yield, rainfall-triggered landsliding, sediment budgets, and the modelling of the individual processes involved. Here we combine model concepts with field observations and look at many examples. (4) Processes in the river, floodplain and riparian zone, including river network topology, channel geometry, aquatic habitat, role of riparian vegetation, including basics of fluvial system management. The main focus of the course is on the hydrology-sediment connections at the field and catchment scale.
Lecture notesThere is no script.
LiteratureThe course materials consist of a series of 13 lecture presentations and notes to each lecture. The lectures were developed from textbooks, professional papers, and ongoing research activities of the instructor. All material is on the course webpage.
Prerequisites / NoticePrerequisites: Basic Hydrology and Watershed Modelling (or contact instructor).
102-0468-00LWatershed Modelling Information 3 credits2GP. Molnar
AbstractIntroduction to watershed modelling with applications of GIS in hydrology, the use of semi- and fully-distributed continuous watershed models, and their calibration and validation. The course contains substantive practical modelling experience in several assignments.
ObjectiveWatershed Modelling is a course in the Master of Science in Environmental Engineering Programme. It is a practical course in which the students learn to (a) use GIS in hydrological applications, (b) calibrate and validate models, (c) apply and interpret semi- and fully- distributed continuous watershed models, and (d) discuss several modelling case studies. This course is a follow up of Hydrology 2 and requires solid computer skills.
Content- Introduction to watershed modelling
- GIS in watershed modelling (ArcGIS exercise)
- Calibration and validation of models
- Semi-distributed modelling with PRMS (model description, application)
- Distributed watershed modelling with TOPKAPI (model description, application)
- Modelling applications and case studies (climate change scenarios, land use change, basin erosion)
Literature- Lecture presentations
- Exercise documentation
- Relevant scientific papers
all posted on the course website
Prerequisites / Notice102-0468-00 Watershed Modelling (3CP) and 102-0237-00 Hydrology II (3CP) for the last time in HS20 and only for students in exceptional cases.
102-0468-10LWatershed Modelling Information 6 credits4GP. Molnar, N. Peleg
AbstractWatershed Modelling is a practical course on numerical water balance models for a range of catchment-scale water resource applications. The course covers GIS use in watershed analysis, models types from conceptual to physically-based, parameter calibration and model validation, and analysis of uncertainty. The course combines theory (lectures) with a series of practical tasks (exercises).
ObjectiveThe main aim of the course is to provide practical training with watershed models for environmental engineers. The course is built on thematic lectures (2 hrs a week) and practical exercises (2 hrs a week). Theory and concepts in the lectures are underpinned by many examples from scientific studies. A comprehensive exercise block builds on the lectures with a series of 5 practical tasks to be conducted during the semester in group work. Exercise hours during the week focus on explanation of the tasks. The course is evaluated 50% by performance in the graded exercises and 50% by a semester-end oral examination (30 mins) on watershed modelling concepts.
ContentThe first part (A) of the course is on watershed properties analysed from DEMs, and on global sources of hydrological data for modelling applications. Here students learn about GIS applications (ArcGIS, Q-GIS) in hydrology - flow direction routines, catchment morphometry, extracting river networks, and defining hydrological response units. In the second part (B) of the course on conceptual watershed models students build their own simple bucket model (Matlab, Python), they learn about performance measures in modelling, how to calibrate the parameters and how to validate models, about methods to simulate stochastic climate to drive models, uncertainty analysis. The third part (C) of the course is focussed on physically-based model components. Here students learn about components for soil water fluxes and evapotranspiration, they practice with a fully-distributed physically-based model Topkapi-ETH, and learn about other similar models. They apply Topkapi-ETH to an alpine catchment and study simulated discharge, snow, soil moisture and evapotranspiration spatial patterns. The final part (D) of the course provides open classroom discussion and simulation of a round-table discussion between modellers and clients about using watershed models in a case study.
Lecture notesThere is no textbook. Learning materials consist of (a) video-recording of lectures; (b) lecture presentations; and (c) exercise task documents that allow independent work.
LiteratureLiterature consist of collections from standard hydrological textbooks and research papers, collected by the instructors on the course moodle page.
Prerequisites / NoticeBasic Hydrology in Bachelor Studies (engineering, environmental sciences, earth sciences). Basic knowledge of Matlab (Python), ArcGIS (Q-GIS).
102-0515-01LEnvironmental Engineering Seminars Restricted registration - show details 3 credits3SE. Secchi, P. Burlando, I. Hajnsek, M. Holzner, M. Maurer, P. Molnar, E. Morgenroth, N. Peleg, S. Pfister, R. Stocker, J. Wang
AbstractThe course is organized in the form of seminars held by the students. Topics selected from the core disciplines of the curriculum (water resources, urban water engineering, material fluxes, waste technology, air polution, earth observation) are discussed in the class on the basis of scientific papers that are illustrated and critically reviewed by the students.
ObjectiveLearn about recent research results in environmental engineering and analyse practical applications in environmental engineering.