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Steering smog prediction

  • Robert van Liere
  • Jarke J. van Wijk
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1225)

Abstract

The use of computational steering for smog prediction is described. This application is representative for many underlying issues found in steering high performance applications: high computing times, large data sets, and many different input parameters.

After a short description of the smog prediction model, its visualization and steering are described. The amount of computation needed to solve the governing transport equations is alarmingly high. The user has a large number of options for the display of various aspects of the simulation, and also for the interactive control of its input data.

Smooth animation is very important to monitor the evolution of pollutants and for a responsive feedback to parameter changes. Here a performance of least 15 frames per second is required. We discuss techniques that allow the user to steer the numerical solver, such that an optimal tradeoff between computation speed and accuracy can be made.

Keywords

scientific visualization computational steering interactive 3D-graphics atmospheric simulation 

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References

  1. 1.
    H. Jetske van Rheineck Leyssius, F. de Leeuw, and B. Kesseboom. A regional scale model for the calculation of episodic concentrations and despositions of acidifying components. Water, Air and Soil Pollution, 51:327–344, 1990.Google Scholar
  2. 2.
    M. van Loon. Numerical Methods in Smog Prediction. PhD thesis, University of Amsterdam, June 1996.Google Scholar
  3. 3.
    R. van Liere and J.J. van Wijk. Computational Steering. In H. Liddell, A. Colbrook, B. Hertzberger, and P. Sloot, editors, High-Performance Computing and Networking, pages 696–702, Brussels, April 1996. Springer-Verlag.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • Robert van Liere
    • 1
  • Jarke J. van Wijk
    • 2
  1. 1.Center for Mathematics and Computer Science CWIGB AmsterdamNetherlands
  2. 2.Netherlands Energy Research Foundation ECNZG PettenNetherlands

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