Lidar observations of the El Chichon cloud at λ = 10.6 µm

Coherent CO2 lidar observations of the El Chichon stratospheric event were made in the Boulder‐Denver area and are reported for a two year period, together with supportive Mie calculations and ruby lidar comparisons. The data, after proper filtering and statistical analysis, show properties that should help modelers test hypotheses and assumptions on the larger particles that produce 10.6 µm backscatter.