The Simulation of Atmospheric Ozone Distribution with a 2-D Model and Validation against UARS and TOMS Data

摘要

A two-dimensional model of radiative, dynamical and photochemical processes in the atmosphere has been developed and used for the simulation of ozone distribution. The results of numerical simulations are compared with UARS and TOMS measurements. The comparison shows that the overall agreement between simulated and UARS stratospheric ozone data is within 5-15% for almost all of the stratosphere except for the high latitudes of the winter hemisphere. This kind of disagreement is a common problem for all 2-D models, which cannot resonably reproduce planetary and gravity wave breaking processes over high latitudes. Validation of the simulated total ozone against TOMS data also shows a good overall agreement. The total ozone difference between the 2-D model results and TOMS measurements is within 5-10% in both Northern and Southern hemispheres during all seasons except 40 deg S-60 deg S from June to October. In this region, the difference between simulated and TOMS total ozone is 30%.