A. Kristensson et al., In situ observations of a reduction in effective crystal diameter in cirrus clouds near flight corridors, GEOPHYS R L, 27(5), 2000, pp. 681-684
Measurements of the crystal size distribution performed over Southern Germa
ny show that the effective diameter decrease 10-30% in cirrus clouds pertur
bed by aircraft. The reduction is more pronounced at higher cloud water con
tent and is not observed at temperatures warmer than -30 degrees C.