科研之友
微信
新浪微博
Facebook
分享链接
摘要
A rare occurrence of stratospheric cirrus at 18.6 km height persisting for about 5 days during 37 March 2014 is inferred from the ground-based Mie lidar observations over Gadanki (13.5 degrees N, 79.2 degrees E) and space-borne observations. Due to the vertical transport by large up-drafts on 3 March in the troposphere, triggered by a potential vorticity intrusion, the water vapour mixing ratio shows an increase around the height of 18.6 km. Relative humidity with respect to ice is similar to 150 %, indicating that the cirrus cloud may be formed though homogeneous nucleation of sulfuric acid. The cirrus cloud persists due to the cold anomaly associated with the presence of a 4-day wave.
- 出版日期2015
