Stephen edited Figure_ref_fig_TimeSeries_shows__.tex  over 8 years ago

Commit id: dc707e020a655bca1e44a587cc1ce60105b3fdf2

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Figure \ref{fig:TimeSeries} shows the daily average time series. The daily averages were only calculated from coincident TCCON and in-situ measurements. The plot shows that the TCCON and CFSv2 water vapour columns are in good agreement, as are surface in-situ and the bottom level of the CFSv2 data. The correlation shown in figure  \ref{fig:H2oCorrelation}, shows that the TCCON columns a are  dry relative to the CFSv2 data and has a lower span. The in-situ data is wet compared to CFSv2 data, but with a similar span. \\  \\  As with all previous comparisons, the TCCON $\delta$^2H are too enriched compared to the in-situ measurements, which represent the best case scenario. The mixing models are similar to the in-situ measurements, probably due to how dry the top of the atmosphere is, so has almost no impact on the overall column. Figure \ref{fig:dD_Correlation} shows that correlation between the TCCON $\delta$^2H column and the different modeled columns. The mixing models show the best agreement but this probably depends on the selection of the dry end member $\delta$^2H and H_2O mixing ratio (basically it is the same as the in-situ correlation). It would be expected that the column $\delta$^2H would be more depleted than the surface, so I have probably selected a dry mixing ratio that is too low to apply a mixing model. The $\delta$^2H profiles shown in \ref{fig:DryProfiles} show a constant value until high in the atmosphere (>500mbar) even though there is clear boundary layer. All in-situ measurements within the free troposphere when a clear planetary boundary layer has developed show that $\delta$^2H is depleted \cite{Herman_2014, Dryoff_2015, Worden_2011}.  Both rayleigh models show that the TCCON measurements are enriched