Fig. 4

Detail of the LIDAR time series compared to OPTAIR counts for the two most prominent aerosol peaks of the series. (a) LIDAR (top panel) backscattered depolarised data and OPTAIR (bottom panel) counts for days 152 (1 June) and 153 (2 June). (b) Same as in (a), showing the days around the spike event affecting 24 June.