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A risk index for characterising flow pattern in soils using dye tracer distributions

Title data

Schlather, Martin ; Huwe, Bernd:
A risk index for characterising flow pattern in soils using dye tracer distributions.
In: Journal of Contaminant Hydrology. Vol. 79 (2005) Issue 1-2 . - pp. 25-44.
ISSN 0169-7722
DOI: https://doi.org/10.1016/j.jconhyd.2005.05.005

Abstract in another language

A novel risk index for the vulnerability of groundwater by pollutants is defined as the form parameter of the Pareto distribution and estimated from dye tracer experiments. The Pareto distribution appears as the limit distribution of the extreme value theory, which has been applied to an idealised model of drops that run along a path. The properties of the risk index are investigated by a Monte Carlo study, where the paths are modelled by means of Gaussian random fields. The method is applied to three profiles obtained from Brilliant Blue tracer experiments of the soil physics group at ETH Zurich. It is shown that a single profile can be rather well characterised by the risk index. However, due to the high variability of the dye tracer profiles, an estimated number of at least 15 profile pictures are necessary to characterise a soil.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER33859
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil Physics
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 14 Jul 2015 06:22
Last Modified: 14 Jul 2015 06:22
URI: https://eref.uni-bayreuth.de/id/eprint/16480