Ozone density at 35 km, 30 km and 25 km altitude was high in summer and autumn, and low in winter.

• 不同高度的臭氧数密度具有明显的季节特征, 35km、30 m和25km高度的臭氧数密度变化特征表现为夏季数密度高,冬季数密度低。