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https://en.wikipedia.org/wiki/Atmospheric_dispersion_modeling
copied from Atmospheric dispersion modeling
The article does not include equations for the atmospheric dispersion parameters, σy and σz. They are dependent on the Pasquill Stability Class and equations[1] [2]for them are below:
σy(x) = exp(Iy + Jyln(x) + Ky[ln(x)]2)
σz(x) = exp(Iz + Jzln(x) + Kz[ln(x)]2)
units of σy, σz, and x are in meters.
| Coefficient | A | B | C | D | E | F |
|---|---|---|---|---|---|---|
| Ry | 0.443 | 0.324 | 0.216 | 0.141 | 0.105 | 0.071 |
| ry | 0.894 | 0.894 | 0.894 | 0.894 | 0.894 | 0.894 |
| Iy | -1.104 | -1.634 | -2.054 | -2.555 | -2.754 | -3.143 |
| Jy | 0.9878 | 1.0350 | 1.0231 | 1.0423 | 1.0106 | 1.0148 |
| Ky | -0.0076 | -0.0096 | -0.0076 | -0.0087 | -0.0064 | -0.0070 |
| Iz | 4.679 | -1.999 | -2.341 | -3.186 | -3.783 | -4.490 |
| Jz | -1.7172 | 0.8752 | 0.9477 | 1.1737 | 1.3010 | 1.4024 |
| Kz | 0.2770 | 0.0136 | -0.0020 | -0.0316 | -0.0450 | -0.0540 |
- ^ Seinfeld, John H. (2006). Atmospheric chemistry and physics: from air pollution to climate change. Chapter 18: Wiley. ISBN 9780471720171.
{{cite book}}: CS1 maint: location (link) - ^ Hanna, S.R. (1982). "Handbook on Atmospheric Diffusion, U.S. Department of Energy Report".
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