Simulation of a biomass-burning plume: Comparison of model results with observations

摘要: [1] We have simulated the dynamical evolution of plume from a prescribed biomass fire, using active tracer high-resolution atmospheric model (ATHAM). Initialization parameters were set to reflect conditions during fire. The results are compared with airborne remote-sensing and in situ measurements plume. ATHAM reproduces injection height (250–600 m) horizontal extent (∼4 km) good accuracy. aerosol mass concentrations underestimated but still range observations. Remaining differences between attributed limited meteorological fire emission information. Additionally, radiative transfer simulations properties performed. A comparison measured reflected solar flux shows an underestimation by over ocean surface, which is most likely due optical depth model. instantaneous forcing was calculated −36 W m−2 land −58 for zenith angle 47° unity, consistent previous studies. Overall, it appears that valuable tool examination transport processes within biomass-burning plumes and, together chemical microphysical module, suitable studies interaction transport, chemistry, microphysics such plumes.