Travel time based approach for the assessment of vulnerability of karst groundwater: the Transit Time Method
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- Permanent Link:
- https://digital.lib.usf.edu/SFS0069953/00001
Material Information
- Title:
- Travel time based approach for the assessment of vulnerability of karst groundwater: the Transit Time Method
- Series Title:
- Environmental Geology
- Creator:
- Brosig, Karolin
Geyer, Tobias
Subah, Ali
Sauter, Martin
- Publication Date:
- 2007-07-17
- Language:
- English
Subjects
- Subjects / Keywords:
- Groundwater Vulnerability ( local )
Karst ( local )
Transit Time Method ( local )
- Genre:
- serial ( sobekcm )
Notes
- Abstract:
- Karst aquifers represent important water resources in many parts of the world. Unfortunately, karst aquifers are characterised by high contamination risks. This paper presents a travel time based method for the estimation of karst groundwater vulnerability. It considers (1) physics-based lateral flow within the uppermost weathered zone (epikarst) in a limestone-dominated region and (2) high velocities of vertical infiltration at discrete infiltration points (e.g. sinkholes) or lines (e.g. dry valleys, faults). Consequently, the Transit Time Method honours the actual flow path within the unsaturated zone of a karst aquifer system. A test site in Northern Jordan was chosen for the demonstration of the assessment technique, i.e. the catchment area of the Qunayyah Spring north of the capital Amman. The results demonstrate that zones of highest vulnerability lie within valleys and nearby main fault zones. It also reveals that regions, categorised as protected areas by other methods due to thick unsaturated zones, contribute to a major degree to the total risk.
- Original Version:
- Environmental Geology, Vol. 54 (2007-07-17).
Record Information
- Source Institution:
- University of South Florida Library
- Holding Location:
- University of South Florida
- Rights Management:
- This object is protected by copyright, and is made available here for research and educational purposes. Permission to reuse, publish, or reproduce the object beyond the bounds of Fair Use or other exemptions to copyright law must be obtained from the copyright holder.
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- Format:
- serial
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