dc.contributor.advisor | Sauter, Martin Prof. Dr. | de |
dc.contributor.author | Doummar, Joanna Jean | de |
dc.date.accessioned | 2012-07-26T15:54:13Z | de |
dc.date.accessioned | 2013-01-18T11:29:10Z | de |
dc.date.available | 2013-01-30T23:50:15Z | de |
dc.date.issued | 2012-07-26 | de |
dc.identifier.uri | http://hdl.handle.net/11858/00-1735-0000-000D-F07C-8 | de |
dc.identifier.uri | http://dx.doi.org/10.53846/goediss-2413 | |
dc.format.mimetype | application/pdf | de |
dc.language.iso | eng | de |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/ | de |
dc.title | Identification of indicator parameters for the quantitative assessment of vulnerability in karst aquifers | de |
dc.type | doctoralThesis | de |
dc.title.translated | Bestimmung von quantitativen Parameter für die Charakterisierung der Schadstoffanfälligkeit eines Karstgrundwasserleiters | de |
dc.contributor.referee | Sauter, Martin Prof. Dr. | de |
dc.date.examination | 2012-07-02 | de |
dc.subject.dnb | 500 Naturwissenschaften | de |
dc.subject.gok | VB 000 | de |
dc.description.abstracteng | Prediction of contaminant transport in
karst aquifers is therefore challenging and requires the knowledge
of flow characteristics and transport processes in these systems.
Based in this information, quantitative vulnerability concepts can
be established, which are a prerequisite for management of karst
water resources and conservation of their quality. The present
thesis investigates indicator parameters of intrinsic and specific
vulnerability in karst aquifers through the characterization of
karst systems based on spring responses and integrated numerical
Modelling at a catchment scale. Spring responses include discharge
and chemographs and reflect the integrated response of all the flow
and transport processes occurring in a system. For this purpose
flow in a well investigated karst system was first numerically
simulated using the Mike She software (DHI). The spatially
distributed model accounts for all the physical processes taking
place in the hydrological cycle, and therefore considers all the
compartments of a karst system (atmosphere, unsaturated zone, and
saturated zone). The physical or empirical parameters involved in
the model, which play a role in the shape of the flow response and
its transmission, were delineated through an extensive sensitivity
analysis. This work shows that all the compartments within a karst
system strongly influence the discharge; consequently they have to
be accounted for in intrinsic vulnerability assessment. The
significance of the physical processes and parameters in the
numerical flow model were quantified using two objective functions:
the Root Mean Square Error (RMSE) and the percentage error in the
annual volume over the modeled period. In the second part of this
work, an extensive campaign of about 30 artificial tracer
experiments were evaluated for different compartments of a mature
karst system. The tracer breakthrough curves (TBCs) were modeled
using the Two Region Non Equilibrium Model (2RNEM) to account for
irregularities and tailing in the observed TBCs. The conservative
transport parameters including tracer transit times, longitudinal
dispersivity as well as the portion of the mobile region ( | de |
dc.contributor.coReferee | Himmelsbach, Thomas Prof. Dr. | de |
dc.contributor.thirdReferee | Geyer, Tobias Dr. | de |
dc.subject.topic | Geosciences and Geography | de |
dc.subject.ger | Karst | de |
dc.subject.ger | Grundwasservulnerabilität | de |
dc.subject.ger | numerische Modellierung | de |
dc.subject.ger | Tracerversuch | de |
dc.subject.ger | Wassertransport | de |
dc.subject.ger | sensitivitätsanalyse | de |
dc.subject.ger | Wasserwirtschaft | de |
dc.subject.ger | Spurenstoffe. | de |
dc.subject.eng | Karst | de |
dc.subject.eng | ground water vulnerability | de |
dc.subject.eng | numerical modelling | de |
dc.subject.eng | artificial tracer experiments | de |
dc.subject.eng | ground water transport | de |
dc.subject.eng | sensitivity analysis | de |
dc.subject.eng | groundwater management | de |
dc.subject.eng | micropollutants. | de |
dc.subject.bk | 38.86 | de |
dc.identifier.urn | urn:nbn:de:gbv:7-webdoc-3634-1 | de |
dc.identifier.purl | webdoc-3634 | de |
dc.affiliation.institute | Fakultät für Geowissenschaften und Geographie | de |
dc.identifier.ppn | 730580202 | de |