Vertically resolved formation mechanisms of fine particulate nitrate in Asian megacities: integrated lidar – aircraft observations and process analysis. - Tian, Yutong; Yang, Ting; Li, Hongyi; Tian, Ping; Song, Yifan; He, Jiancun; Tan, Yining; Sun, Yele; Wang, Zifa (Atmospheric Chemistry & Physics, 2025)