Figure 3
From: Intercomparison of in-situ aircraft and satellite aerosol measurements in the stratosphere
Ratios between the IAGOS-CARIBIC and monthly mean CALIOP aerosol scattering from Fig. 1 for all years combined related to the altitude above the tropopause. Data from months more affected by volcanism have been excluded (compare Fig. 2). Mean values together with double-sided 95% confidence intervals, calculated on the logarithm of ratios using Student’s t-distribution and then transformed back, for the mean ratio and altitude have been calculated for each month in three altitude intervals, 0.3–1 km, 1–2 km and above 2 km above the tropopause.
