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Chapter 3: Vapor Transport Processes
45
3
movement of H in the vapor phase (Scanlon, 1992). The difference in moisture
fluxes between the two tracers suggests a vapor flux of ∼6mm/year. Unsaturated-
zone nonisothermal liquid- and vapor-flow modeling was used to simulate these
processes, and enhanced vapor diffusion was required in the vapor-transport models
to obtain the observed results. Additional details of these studies can be found in
Scanlon (1992) and Scanlon and Milly (1994).
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