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On Environmental Characteristics as a Factor in Modeling California Wildfire Smoke Diffusion

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  • Zhixiong Chen
  • Valarie Yi Ding
  • Keith Lawrence Corpuz

Abstract

In this article, we compare two California wildfires during the COVID-19 pandemic and determine the extent to which environmental characteristics affect the diffusion of wildfire smoke. We model the spread of smoke concentration in the region of the fires using a diffusion-advection-decay equation considering existing particulate matter as a source. We derive the coefficients for the model from Boltzmann calculations, wind speeds, and half-life. We analyze the resulting solution curves and numerical data through a MATLAB program to suggest reforms, modifications, and addenda to policies on the evacuation and return of affected residents. We find return policies can be modified so residents return 2 weeks before or after the recommended time, which we concluded as 3 months after initial ignition.

Suggested Citation

  • Zhixiong Chen & Valarie Yi Ding & Keith Lawrence Corpuz, 2025. "On Environmental Characteristics as a Factor in Modeling California Wildfire Smoke Diffusion," Journal of Applied Mathematics, Hindawi, vol. 2025, pages 1-14, December.
    • Handle: RePEc:hin:jnljam:6667856
    DOI: 10.1155/jama/6667856
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