Data interpretation & comparison

Still busy comparing and interpreting my measurement data with 3rd party measurements – very interesting, but tedious as well. I have obtained ground ozone data from Alert that was recorded during my own measurement campaign and the data confirm the trend that I already observed with column ozone data:

There is a correlation between the depletion event that I observed for the measured VOC species in air and snow and sharply increasing ozone concentrations near ground: Another indicator that VOC in near surface snow contribute to atmospheric processes.