Development and Application of the Model MISCAM

The Model

Development of MISCAM startet in the 1980s at the Institute for Atmospheric Physics within the framework of two projects funded by the German Ministry of Education and Research.

As suggested by environmental agencies and consultant, the model was ported from a mainframe to personal computers. That was, MISCAM was established as a useful tool for consultants, leading to more than a hundred implementations in Germany. Additional user interfaces have been developed by external companies.

MISCAM consists of a three-dimensional non-hydrostatic flow model, a two-equation turbulence model and a Eulerian transport model.

The flow model has been successfully validated according to the VDI Guideline 3873/9 "Prognostic microscale wind field models - Evaluation for flow around buildings and obstacles" .


Studies that have been carried out at IPA include

  • Consequences of an enlargement of the university campus
  • Effects of additional business buildings at the western boundary of the city of Mainz
  • Transport of exhaust gases of chemical laboratories
  • Odors in the vicinity of a sewage plant
  • Small scale flow conditions in the surroundigs of holographic measurments
  • Dry deposition of dust on historical facades
Simulation Examples
Flow around isolated obstacles
Pollutant dispersal within an array of shipping containers
Flow and odor dispersal near a sewage plant
Flow around Christuskirche in Mainz
Publications (* peer reviewed)

* Auras, M., Beer, S., Bundschuh, P., Eichhorn, J., Mach, M., Scheuvens, D., Schorling, M., von Schumann, J., Snethlage, R., Weinbruch, S.; 2013: Traffic-related immissions and their impact on historic buildings: implications from a pilot study at two German cities. Environmental Earth Sciences, doi: 10.1007/s12665-013-2276-4

Eichhorn, J., von Schumann, J.; 2011: Numerische Modellierung der Ausbreitung und Deposition von Kfz-Emissionen. In: Wirkung verkehrsbedingter Immissionen auf Baudenkmäler - Eine Pilotstudie zu den Innenstädten von Mainz und München. IFS-Berichte, 37, ISSN 0945-4748, 79-86.

* Belalcazar, L.C., Clappier, A., Blond, N., Flassak, T., Eichhorn, J.; 2010: A critical evaluation to the estimation of road traffic emission factors from tracer studies. Atmosph. Environ., 44/31, 3814-3822.

* Eichhorn, J., Kniffka, A.; 2010: The Numerical Flow Model MISKAM: State of Development and Evaluation of the Basic Version. Meteorol. Zeitschrift, 19/1, 81-90.

Balczó, M., Eichhorn, J.; 2009: Refined MISKAM simulations of the Mock Urban Setting Test. Proceedings of the XXIII. MicroCAD International Scientific Conference, Miskolc / Hungary, pp. 7-12; ISBN 978-963-661-866-7.

Czáder, K., Balczó, M., Eichhorn, J.; 2009: Modelling of flow and dispersion in a street canyon by means of numerical simulation. Proceedings of the XXIII. MicroCAD International Scientific Conference, Miskolc / Hungary, pp. 47-52; ISBN 978-963-661-866-7.

* Ries, K., Eichhorn, J.; 2001: Simulation of effects of vegetation on the dispersion of pollutants in street canyons, Meteorol. Zeitschrift, 10/4, 229 - 233.

Eichhorn, J., Ries, R.; 1997: Einsatzmöglichkeiten numerischer Modelle zur Simulation der Geruchsstoffausbreitung, KTBL-Veröffentlichungen.

Eichhorn, J.; 1996: Validation of a microscale pollution dispersal model, In: Air pollution modeling and its application XI, 539-545. Plenum Press, New York, 708pp.

Eichhorn, J., Jaeschke, R., Ries, R., Beltz, N., Heil, O.; 1995: Naturmessungen verkehrsbedingter Immissionen als Grundlage zur Validierung des mikroskaligen Ausbreitungsmodells MISKAM, VDI-Berichte 1228, 473 - 494.

* Eichhorn, J., Schrodin, R., Zdunkowski, W.; 1988: Three-Dimensional Numerical Simulations of the Urban Climate, Beitr. Phys. Atmosph., 61, 187 - 203.

PhD thesis

Eichhorn, Joachim; 1989: Entwicklung und Anwendung eines dreidimensionalen mikroskaligen Stadtklimamodells

Diploma theses

von Schumann, Jonas (2012): Simulation trockener Deposition in einem mikroskaligen Modell der Atmosphäre

Kniffka, Anke (2002): Implementierung eines diffusionsarmen Advektionsschemas in das numerische Modell MISKAM

Ries, Kai Uwe (2001): Numerische Simulation der Vegetationseinflüsse auf Strömungs- und Ausbreitungsvorgänge

Itzstein, Martina (1997): Verifikation des Stadtklima-Modells MISKAM anhand lufthygienischer Meßdaten

von Kuhlmann, Rolf (1997): Parametrisierung fahrzeuginduzierter Effekte im Stadtklimamodell MISKAM

Früh, Barbara (1996): Untersuchungen zum Nesting meso- und mikroskaliger Strömungsmodelle

Külzer, Stefan (1994): Erweiterung des dreidimensionalen Stadtklimamodells MISKAM auf Unterströmungseffekte

Döring, Torsten (1993): Vergleich verschiedener Advektionsverfahren und Sensitivitätsstudien im urbanen Bereich