Free Access
Fig. 4
Vertical variation of the ratio between the extinction coefficients at 3.33 and 3.38 μm, which is proportional to the ratio between the aromatic and aliphatic components in the haze material. The altitude limits correspond to the onset of the forced aging, spontaneous aging and coating processes.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.