Universität Wien FIND
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280385 VO PM-MetNawi: Modelling of transport and dispersion of atmospheric trace substances (NPI) (2014S)

Modelling of transport and dispersion of atmospheric trace substances (NPI)

Begin: Wed 5 March, 11:45 - 13:45, Room 2E206

At the moment, the time 11.30 - 13.30 is officially foreseen, but we can discuss on the first day whether the course should be shifted, either by 15 to 30 min, or to the afternoon.

Details

max. 20 participants
Language: English

Examination dates

Lecturers

Classes

Currently no class schedule is known.

Information

Aims, contents and method of the course

1. Introduction
1.1. Applications of atmospheric transport modelling
1.2. Limitations (what is a "passive tracer", radiative flux divergence, dense gas dispersion, nonlinear
chemistry, tritium, . . . )
1.3. Introduction to atmospheric trace substances
1.4. Literature overview
2. Theoretical foundations
2.1. Brief review of some key topics in boundary-layer meteorology
2.2. Eulerian transport equation for passive substances
2.3. Taylor’s Lagrangian theory of diffusion
2.4. Relative diffusion and concentration fluctuations
2.5. Gaussian model
2.6. Plume rise
3. Sources and sinks
3.1. Types of sources (point, line, . . . )
3.2. Gravitational settling
3.3. Dry deposition
3.4. Wet deposition
3.5. Resuspension
3.6. Radioactive decay and chemical reactions
4. Specific atmospheric features and conditions
4.1. Warm conveyor belts
4.2. Convection
4.3. Fumigation
4.4. Recirculation
4.5. Low-wind-speed conditions and meandering
4.6. Inversions
4.7. Polar environments
4.8. Valleys and basins
4.9. Mountain tops
4.10. Coastal effects
5. Practical dispersion models and related topics
5.1. Tracer experiments
5.2. Gaussian plume models (dispersion categories, wind profile, mixing height)
5.3. Gaussian puff models
5.4. Non-Gaussian analytical models
5.5. Box models (various kinds)
5.6. Eulerian models
5.7. Trajectory models
5.8. Lagrangian particle dispersion models
6. Inverse modelling and related topics
6.1. Source-receptor relationship
6.2. Adjoint transport models
6.3. The inverse problem for sources of trace substances
6.4. Practical solutions to the inverse problem

Assessment and permitted materials

Oral exam after the end of the course

Minimum requirements and assessment criteria

Knowledge about
- typical applications
- theoretical foundations of atmospheric transport and diffusion modelling
- specific atmospheric conditions relevant to transport and diffusion
- most relevant types of models in use
Ability to select and correctly apply atmospheric transport and diffusion models for practical purposes.
Preparation for contributing to scientific developments in this field.

Examination topics

Presentation, possibility to ask questions

Reading list

Literature list will be distributed in the first lecture

Association in the course directory

Last modified: Mo 07.09.2020 15:42