Abstract
There is increased concern about surface pollution associated with stratospheric ozone intrusion events. By using NASA's AQUA/AIRS, in combination with the European Center for Medium-Range Weather Forecasts (ECMWF) high resolution reanalysis data and the ground sites of excessive ozone, the ozone concentration, relative humidity and carbon monoxide (CO) concentration in the vertical profile data were obtained, and their spatial-temporal variations and stratospheric ozone intrusion were preliminarily investigated over China. Meanwhile, the intrusion of air downward towards the surface were analyzed by HYSPLIT model. The results indicated that three typical regions, Chaoyang, Shijiazhuang and Hangzhou, experienced stratospheric ozone intrusion events in the spring and summer of 2019. The ozone concentration has clear negative relation with the relative humidity and CO concentration, which their vertical profiles can be used as an auxiliary basis for judging stratospheric ozone intrusion. Further work needs to be done to evaluate the quantitative effects of stratospheric ozone intrusion on ground ozone concentration.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
