Looking at the \(\delta\)\(^2\)H.H\(_2\)O plots for the in-situ data suggests Rayleigh models will not be appropriate. During the dry season the data matches very closely with a mixing line , wet season super-Rayleigh (ie much more depleted than predicted by Rayleigh) \cite{Noone_2012}, and the transitional seasons observe both processes but nothing like a Rayleigh model. These plots could be the justification for using a mixing model to represent the profile in the dry season, a super rayleigh model for the wet, and a threshold which separates these 2 models for transitional periods.
Q’s:
What do the H_2O profiles look like for super-rayleigh?
Do we actually have any TCCON data for super-rayleigh cases?
How the hell do you construct a profile with a super rayleigh model - no relationship between \(\delta\)\(^2\)H and H\(_2\)O??
fit \(\phi\) to the data - see \citet{Noone_2012}
Do models see the same?