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Optical parameters of contrails from lidar measurements: Linear depolarization
Author(s) -
Freudenthaler V.,
Homburg F.,
Jäger H.
Publication year - 1996
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/96gl03646
Subject(s) - lidar , depolarization , backscatter (email) , atmosphere (unit) , environmental science , depolarization ratio , atmospheric sciences , aerosol , remote sensing , meteorology , materials science , physics , geology , medicine , endocrinology , telecommunications , computer science , wireless
By means of a scanning backscatter and depolarization lidar, contrails have been investigated for ages between a few seconds and 60 min. At environmental temperatures ≤−60°C the depolarization measured in the contrails rises from about 0.1 to 0.5 with time, whereas at higher temperatures around −50°C already the youngest contrails exhibit depolarization values of about 0.5. This indicates a strong dependence of the aerosol formation and growth on the environmental temperature which might influence their behavior in the atmosphere.