Fig 1. (a) The difference of deuterium isotopologue between liquid and vapor (ΔD= δDliquid- δDvapor) plotted against the saturation index (Si) for experiments undertaken at Ahmedabad. (b) Similar plot for 18O.
Fig 2. Demonstrates the development of the concentration gradient from initial time (to) to final time (tf). The region (S) shaded in gray denotes the micron thin supersaturated boundary layer near the surface of the metallic cone used for condensation. Here we have ev2>ev1>ev’ and ei2>ei1>ei’ where ev and ei are ambient and saturation vapor pressure over water.
Fig 3. (a) The predicted δD values are plotted and are found to be in good agreement with the observed vapour values for Ahmedabad; (b) The predicted δ18O values are plotted and are found to be in good agreement with the observed vapour values for Ahmedabad.
Fig 4. (a) The predicted δ18O values are plotted and are found to be in good agreement with the observed vapour values for Hyderabad; (b) The predicted δ18O values are plotted and are found to be in good agreement with the observed vapour values for Roorkee.