Modelling tracer injection for the interpretation of a tracer test in layered fluvial sediments

U. Mohrlok, G. McNeill, T. Elliot, R. Kalin

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

At the Karlsruhe-Knielingen test site a combined tracer test was performed under natural gradient conditions injecting Cl and the noble gas Kr as conservative tracers via a multi-level borehole in the shallow aquifer into a thin upper sand layer and the gravel layer below. The breakthrough of the Kr was detected downstream in the gravel layer as well as in the upper sand layer. Numerical groundwater flow and advective transport modelling of the experimental conditions was applied successfully both to explain the multiple breakthrough according to the layered aquifer and to determine the longitudinal aquifer dispersivities.

Original languageEnglish
Pages (from-to)395-399
Number of pages5
JournalActa Universitatis Carolinae, Geologica
Volume46
Issue number2-3
Publication statusPublished - 1 Dec 2002

Keywords

  • heterogeneous aquifer
  • numerical simulation
  • natural gradient tracer test
  • krypton
  • chloride
  • numerical groundwater flow
  • tracer test

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