2020 Detecting groundwater discharge to a small river channel using ground-based thermal infrared imagery and radon-222

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  • KUL - Katholieke Universiteit Leuven

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Abstract

Understanding river–groundwater interaction is important for assessing the hydrologic, ecologic and biogeochemical processes in the hyporheic zones. Various field methodologies exist to evaluate their interaction, such as direct seepage-metre measurements (Rosenberry, 2008) or streambed temperature profiling (Anibas et al., 2018). Moreover, a number of different environmental tracers (Cook, 2013) are used in this context, for example radon (222Rn), which is generated in the subsurface from uranium-series isotopes and its concentration decreases due to fast decay (half-life of 3.8 days) and gas exchange with the atmosphere.

Details

Original languageEnglish
Article number13839
Pages (from-to)1-3
Number of pages3
JournalHydrological Processes
Volume17
Issue number6
DOIs
Publication statusPublished - 30 Aug 2020

Keywords

  • Groundwater, Radon-222

ID: 6927361