deletions | additions       diff --git a/section_Water_Vapor_Calibration_The__.tex b/section_Water_Vapor_Calibration_The__.tex  index 589a1aa..e09cd73 100644  --- a/section_Water_Vapor_Calibration_The__.tex  +++ b/section_Water_Vapor_Calibration_The__.tex 
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\[\delta=\bigg[\frac{\chi_i}{\chi}-1\bigg]\]   The minor water vapour isotopologue calibrations for the FTIR are non-linear (\ref{fig:figure1})  \[\delta - \delta_0\ = \bigg[\frac{\alpha\epsilon}{1-\alpha(1-\epsilon)}-1\bigg] \times ln\bigg[\frac{\alpha l_0 + q - \alpha(1-\epsilon)(q - q_0)}{\alpha l_0 + q_0}\bigg]\]