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Title (Primary) Wie Flussbett-Temperaturdaten zur Ermittlung der Aquifer-Heterogenität beitragen können (How streambed temperatures can contribute to the determination of aquifer heterogeneity)
Author Kalbus, E.; Schmidt, C.; Reinstorf, F.; Krieg, R.; Schirmer, M.;
Journal Grundwasser
Year 2008
Department ENVINF; HDG;
Volume 13
Issue 2
Language deutsch;
Keywords heterogeneity; streambed temperatures; thermal modelling; groundwater-surface water interactions; direct-push; injection log
Abstract Groundwater discharge to a stream may show small-scale heterogeneities caused by the structure of the connected aquifer. The spatial pattern of the groundwater discharge can be investigated by temperature measurements in the streambed. Thus, the heterogeneity of the hydraulic conductivity (K) of an aquifer can be inferred from measured streambed temperatures. A flow and heat transport model of a stream-aquifer system was set up including stochastic K fields generated from the mean and variance of K data obtained from direct-push measurements. However, the simulated streambed temperatures did not cover the range of measured temperatures. Therefore, the relation between the distribution of streambed temperatures and the variance of K was used to calibrate the variance of K such that the distribution of measured temperatures could be reproduced in the model. This study showed that methods based on heat as a parameter for measuring and calibration constitute a valuable supplement to traditional investigation techniques.
ID 1081
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=1081
Kalbus, E., Schmidt, C., Reinstorf, F., Krieg, R., Schirmer, M. (2008):
Wie Flussbett-Temperaturdaten zur Ermittlung der Aquifer-Heterogenität beitragen können (How streambed temperatures can contribute to the determination of aquifer heterogeneity)
Grundwasser 13 (2), 91 - 100