A Case Study of Ozone Diurnal Variation in the Convective Boundary Layer in the Southeastern United States Using Multiple Observations and Large-Eddy Simulation

摘要: We investigated the diurnal ozone variation on 6 September 2013 in a midsize urban environment using multiple situ and remote-sensing measurements along with Dutch atmospheric large-eddy simulation (DALES) model coupled chemical module dry deposition that we added for this study. Our study area was Huntsville, Alabama, USA, typical city Southeastern United States. The convective boundary layer (CBL) resulted mainly from local emissions photochemical production stemming weather conditions controlled by an anticyclonic system day. Local contributes approximately two thirds of enhancement CBL and, case, dynamical processes including transport free troposphere (FT) to through entrainment contributed remainder. numerical experiments performed (LES) showed acceptable agreement TOLNet (The tropospheric lidar network)/RO3QET (Rocket-city quality evaluation troposphere) DIAL (differential absorption lidar) observations. This indicated need fine-scale, three-dimensional observations high temporal spatial resolution air studies at scale smaller.