Travel Times From Buried and Surface Infiltration Point Sources

Abstract

Solutions in closed form are found for the travel times of marked particles from buried and surface infiltration point sources. The study is based on the quasi‐linear analysis of steady three‐dimensional unsaturated flow. The results are presented graphically. The mathematical analysis applies to all linear convection‐diffusion processes from continuous point sources in the appropriate infinite and seminfinite regions. In the soil water context a limitation is that travel velocities are based on a mean volumetric moisture content.