“Plane tracks” in cirrus clouds

Matthias Tesche, University of Hertfordshire, Hatfield, AL10, United Kingdom, Peggy Achtert, University of Leeds, Leeds, LS2, United Kingdom, Paul Glantz, Stockholm University, Department of Environmental Science and Analytical Chemistry (ACES), Stockholm, Sweden; Stockholm University, Stockholm, Sweden and Kevin J Noone, Stockholm University, Environmental Science and Analytical Chemistry (ACES), Stockholm, Sweden