The NOAA Earth System Research Laboratory has an ozone depleting gas index (ODGI) data set from 1992 to 2018. This dataset summarizes Table 1 and Table 2 from its website in a tidy/long format. The primary interest here (for my purposes) is the ODGI indices (including the new 2012 measure). The data set includes constituent greenhouse gases/chlorines as well in parts per trillion. The primary use here is for in-class illustration.
A data frame with 756 observations on the following 4 variables.
the year of observation
categorical for Antarctic or Mid-latitudes
categorical, whether for the particular greenhouse gas (e.g. CFC-11, CFC-12, CH3Cl) or the ODGI measures of interest to me.
a numeric vector
I'm working under the assumption that the constituent gases in
Value is measured in parts per trillion while the ODGI measures are a separate index measure. Use with caution.
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