Lookup tables used in the publication "On the estimation of stratospheric age of air from correlations of multiple trace gases"

Lookup Tables (LUTs) to convert tracer mixing ratios into mean Age of Air as used in publication:
"On the estimation of stratospheric age of air from correlations of multiple trace gases"
doi: https://doi.org/10.5194/egusphere-2024-2624

file structure: lookup_tables/<date>/<hemisphere>/<lut_file>

<date>         = 01_01_2011, 01_04_2011, 01_07_2011, 01_10_2011, 21_08_2021, 23_08_2022
<hemisphere>     = SH (souther hemisphere), NH (northern hemisphere)
<lut_file>     = lookup_table_<tracer>_<hemisphere>_<date>.csv

<tracer>    =
SF6 (sulfur hexafluoride, unit: pptV),
F11 (CFC-11, trichlorofluoromethane, unit: pptV),
F12 (CFC-12, dichlorodifluoromethane, unit: pptV),
N2O (nitrous oxide, unit: ppbV),
F22 (HCFC-22, chlorodifluoromethane, unit: pptV),
CH4 (Methane, unit: ppmV)

variables in <lut_file> =
vmr: tracer mixing ratio (see <tracer> for unit),
aoa: actual mean age of air of CLaMS model (years), 
meas_err: uncertainty of aoa due to measurement uncertainty estimation (years), 
mod_var: uncertainty of aoa due to variability of the model (years)