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Category Text Publication
Reference Category Journals
DOI 10.1111/gwat.12898
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Title (Primary) Collected rain water as cost‐efficient source for aquifer tracer testing
Author Tritschler, F.; Binder, M.; Händel, F.; Burghardt, D.; Dietrich, P. ORCID logo ; Liedl, R.
Source Titel Groundwater
Year 2020
Department MET
Volume 58
Issue 1
Page From 125
Page To 131
Language englisch
Abstract Locally collected precipitation water can be actively used as a groundwater tracer solution based on four inherent tracer signals: electrical conductivity, stable isotopic signatures of deuterium [δ2H], oxygen‐18 [δ18O], and heat, which all may strongly differ from the corresponding background values in the tested groundwater. In hydrogeological practice, a tracer test is one of the most important methods for determining subsurface connections or field parameters, such as porosity, dispersivity, diffusion coefficient, groundwater flow velocity, or flow direction. A common problem is the choice of tracer and the corresponding permission by the appropriate authorities. This problem intensifies where tracer tests are conducted in vulnerable conservation or water protection areas (e.g., around drinking water wells). The use of (if required treated) precipitation as an elemental groundwater tracer is a practical solution for this problem, as it does not introduce foreign matters into the aquifer system, which may contribute positively to the permission delivery. Before tracer application, the natural variations of the participating end members' tracer signals have to be evaluated locally. To obtain a sufficient volume of tracer solution, precipitation can be collected as rain using a detached, large‐scale rain collector, which will be independent from possibly existing surfaces like roofs or drained areas. The collected precipitation is then stored prior to a tracer experiment.
Persistent UFZ Identifier
Tritschler, F., Binder, M., Händel, F., Burghardt, D., Dietrich, P., Liedl, R. (2020):
Collected rain water as cost‐efficient source for aquifer tracer testing
Groundwater 58 (1), 125 - 131 10.1111/gwat.12898