Modeling the Contribution of Aerosols to Fog Evolution through Their Influence on Solar Radiation

Aerosols and in particular their black carbon (BC) content influence the atmospheric heating rate fog dissipation. Substantial improvements have been introduced to solar scheme of computational fluid dynamic model code_saturne estimate fluxes rates atmosphere. This is applied a well-documented case that evolves into low stratus cloud. Different sensitivity tests are conducted. They show aerosols major effect with an overestimation direct by 150 W m−2 when not considered reduction layers. lead increase as much 55% infrared (SIR) band 100% Ultra-Violet visible (UV-vis) band. Taking account fraction BC cloud droplets also accentuates layers at top layer where water liquid maximum. When equal 8.6 × 10−6, there approximately 7.3 °C/day Increasing leads this layer, especially UV-vis