Suchergebnis: Katalogdaten im Frühjahrssemester 2021
|102-0448-00L||Groundwater II||O||6 KP||4G||M. Willmann, J. Jimenez-Martinez|
|Kurzbeschreibung||The course is based on the course 'Groundwater I' and is a prerequisite for a deeper understanding of groundwater flow and contaminant transport problems with a strong emphasis on numerical modeling.|
|Lernziel||The course should enable students to understand advanced concepts of groundwater flow and transport and to apply groundwater flow and transport modelling.|
the student should be able to
a) formulate practical flow and contaminant transport problems.
b) solve steady-state and transient flow and transport problems in 2 and 3 spatial dimensions using numerical codes based on the finite difference method and the finite element methods.
c) solve simple inverse flow problems for parameter estimation given measurements.
d) assess simple multiphase flow problems.
e) assess spatial variability of parameters and use of stochastic techniques in this task.
f) assess simple coupled reactive transport problems.
|Inhalt||Introduction and basic flow and contaminant transport equation.|
Numerical solution of the 3D flow equation using the finite difference method.
Numerical solution to the flow equation using the finite element equation
Numerical solution to the transport equation using the finite difference method.
Alternative methods for transport modeling like method of characteristics and the random walk method.
Two-phase flow and Unsaturated flow problems.
Spatial variability of parameters and its geostatistical representation -geostatistics and stochastic modelling.
Reactive transport modelling.
|Literatur||- Anderson, M. and W. Woessner, Applied Groundwater Modeling, Elsevier Science & Technology Books, 448 p., 2002|
- J. Bear and A. Cheng, Modeling Groundwater Flow and Contaminant Transport, Springer, 2010
- Appelo, C.A.J. and D. Postma, Geochemistry, Groundwater and Pollution, Second Edition, Taylor & Francis, 2005
- Rubin, Y., Applied Stochastic Hydrology, Oxford University Press, 2003
- Chiang und Kinzelbach, 3-D Groundwater Modeling with PMWIN. Springer, 2001.
|Voraussetzungen / Besonderes||Each afternoon will be divided into 2 h of lectures and 2h of exercises. Two thirds of the exercises of the course are organized as a computer workshop to get hands-on experience with groundwater modelling.|
|701-1240-00L||Modelling Environmental Pollutants||O||3 KP||2G||M. Scheringer, C. Bogdal|
|Kurzbeschreibung||Modeling the emissions, transport, partitioning and transformation/degradation of chemical contaminants in air, water and soil.|
|Lernziel||This course is intended for students who are interested in the environmental fate and transport of volatile and semi-volatile organic chemicals and exposure to pollutants in environmental media including air, water, soil and biota. The course focuses on the theory and application of mass-balance models of environmental pollutants. These models are quantitative tools for describing, understanding, and predicting the way pollutants interact with the environment. Important topics include thermodynamic and kinetic descriptions of chemical behavior in environmental systems; mechanisms of chemical degradation in air and other media; novel approaches to modeling chemical fate in a variety of environments, including lakes and rivers, generic regions, and at the global scale, and application of mass balance modeling principles to describe bioaccumulation of pollutants by fish and mammals.|
|Inhalt||Application of mass balance principles to chemicals in a system of coupled environmental media. Measurement and estimation of physico-chemical properties that determine the environmental behavior of chemicals. Thermodynamic and kinetic controls on the behavior of pollutants. Modeling environmental persistence, bioaccumulation and long-range transport potential of chemicals, including a review of available empirical data on various degradation processes. Current issues in multimedia contaminant fate modeling and a case study of the student's choice.|
|Skript||Material to support the lectures will be distributed during the course.|
|Literatur||There is no required text. The following texts are useful for background reading and additional information.|
D. Mackay. Multimedia Environmental Models: The Fugacity Approach, 2nd Ed. 2001. CRC Press.
R. P. Schwarzenbach, P. M. Gschwend, D. M. Imboden. Environmental Organic Chemistry. 2nd Ed. 2003, John Wiley & Sons.
M. Scheringer. Persistence and spatial range of environmental chemicals: New ethical and scientific concepts for risk assessment. 2002. Wiley-VCH.
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