1. Heat as a hydrological tracer
- Author
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Krause, S., Hannah, D.M., Grimm, N.B., Schmidt, Christian, Lewandowski, J., Galloway, J.N., Chalari, A., Ciocca, F., Pfister, L., Antonelli, M., Krause, S., Hannah, D.M., Grimm, N.B., Schmidt, Christian, Lewandowski, J., Galloway, J.N., Chalari, A., Ciocca, F., Pfister, L., and Antonelli, M.
- Abstract
Ecohydrological interfaces comprise liquid–solid interfaces such as the stream–sediment interface, gas–solid interfaces such as the soil–atmosphere interface, liquid–liquid interfaces such as a thermocline in a lake, or gas–liquid interfaces such as the lake–atmosphere interface. The interface at which heat as a tracer is mostly applied is the sediment–water interface at streams, lakes, and seas. It is important to note the underlying difference between heat transport and solute transport in porous media. Temperature differences can be used to identify patterns of groundwater exfiltration over large areas. Thermal infrared imaging reveals the temperature distribution of surfaces and allows the determination of the skin temperature of water bodies but not temperatures in a water body itself. Similar to streambed temperature mapping, the thermal patterns observed along the cable can provide a qualitative indicator of groundwater discharge.
- Published
- 2024