Analysis of field observations of tracer transport in a fractured till

摘要

We analyze a set of observations from a recently published, field-scale tracer test in a fractured till. Therese observations demonstrate a dominant, underlying non-Fickian behavior, which cannot be quantified using traditional modeling approaches. We use a continuous time random walk (CTRW) approach which thoroughly accounts for the measurement, and which is based on a physical picture of contaminant motion that is consistent with the geometric and hydraulic characterization of the fractured formation.