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Uncertainty in predictions from air quality models

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Abstract

This paper examines the role of the definition of the ensemble in determining the uncertainty in air quality model predictions. We difine the ensemble in terms of the variables included in the model input set. Because observations are also governed by variables not included in this set, we can have an infinitely large set of observations associated with a single model prediction. The variation of these observations about the model prediction corresponds to all possible values of the unknown variables, and it represents the uncertainty in the model prediction. This concept is illustrated by estimating the uncertainty related to model predictions for two dispersion problems.

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References

  1. Chatwin, P. C.: 1982, ‘The Use of Statistics in Describing and Predicting the Effects of Dispersing Gas Clouds’, J. Hazardous Materials 6, 213–230.

  2. Chatwin, P. C. and Sullivan, P. J.: 1979, ‘The Basic Structure of Diffusing Contaminant’, in Mathematical Modeling of Turbulent Diffusion in the Environment, Academic Press, N.Y., pp. 3–32.

  3. Csanady, G. T.: 1973, Turbulent Diffusion in thé Environment, D. Reidel Publ. Co., Dordrecht, Holland.

  4. Durbin, P. A.: 1980, ‘A Stochastic Model of Two-Particle Dispersion and Concentration Fluctuations in Homogeneous Turbulence’, J. Fluid Mech. 100, 279–302.

  5. Kaimal, J. C., Wyngaard, J. C., Haugen, D. A., Coté, O. R., Izumi, Y., Caughey, S. J., and Readings, C. J.: 1976, ‘Turbulence Structure in the Convective Boundary Layer’, J. Atmos. Sci. 33, 2152–2169.

  6. Lamb, R. G.: 1982, ‘Diffusion in the Convective Boundary Layer’, in Atmospheric Turbulence and Air Pollution Modelling, D. Reidel Publ. Co., Dordrecht, Holland, pp. 159–230.

  7. Lumley, J. L. and Panofsky, H. A.: 1964, The Structure of Atmospheric Turbulence. Interscience Publishers, John Wiley and Sons, New York.

  8. Panofsky, H. A.: 1978, ‘Matching in the Convective Boundary Layer’, J. Atmos. Sci. 35, 272–276.

  9. Venkatram, A.: 1979, ‘The Expected Deviation of Observed Concentrations from Predicted Ensemble Means’, Atmos. Env. 13, 1547–1549.

  10. Venkatram, A.: 1983, ‘On Dispersion in the Convective Boundary Layer’, Atmos. Env. 17, 529–533.

  11. Venkatram, A.: 1983, ‘The Uncertainty in Estimating Dispersion in the Convective Boundary Layer’, Atmos. Env. (in press).

  12. Weil, J. C. and Brower, R. P.: 1982, ‘The Maryland PPSP Dispersion Model for Tall Stacks’, Martin Marietta Report No. PPSP-MP-36.

  13. Willis, G. E. and Deardorff, J. W.: 1978, ‘A Laboratory Study of Dispersion from an Elevated Source within a Modeled Convective Planetary Boundary Layer’, Atmos. Env. 12, 1305–1311.

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Venkatram, A. Uncertainty in predictions from air quality models. Boundary-Layer Meteorol 27, 185–196 (1983). https://doi.org/10.1007/BF00239614

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Keywords

  • Model Prediction
  • Model Input
  • Quality Model
  • Single Model
  • Unknown Variable