Antarctic ozone depletion

Question P9.2.1

The file ozone.csv gives tables for the total ozone column amounts in October in "Dobson units", and the concentrations of two chlorofluorocarbon (CFC) compounds, "F11" and "F12", in parts per trillion by volume (pptv) for the years 1957 – 1984 (The Dobson unit is defined as the thickness, in units of 0.01 mm, that a layer of pure gas would form at standard conditions for temperature and pressure from its total column amount in the atmosphere above a region of the Earth's surface.)

Read in and parse these data, and plot them on a suitable chart.

Data from Farman et al., Nature 315, 207 (1985).


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