The Improvement in Model Simulations of the Atmospheric Condition in Beijing with Consideration of Anthropogenic Heat

Anthropogenic heat (AH) was considered in the Weather Research and Forecasting (WRF) model that is coupled with the urban canopy model (UCM) to investigate its effects on model simulations of the atmospheric condition in Beijing. Results indicated that:1) The consideration of AH can significantly improve the simulation of meteorological variables, especially in the simulation of the boundary layer height, which is a key factor that determines the vertical dispersion of pollutants in air quality models; 2) The model can better reproduce the spatial patterns of wind and temperature fields with the consideration of AH; 3) The vertical distribution of pollutants in the model simulation is also improved with the consideration of AH.