Articles | Volume 28, issue 8
https://doi.org/10.5194/hess-28-1915-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-28-1915-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Technical note
| 
02 May 2024
Technical note |
| 02 May 2024
| 02 May 2024
Technical note: Two-component electrical-conductivity-based hydrograph separation employing an exponential mixing model (EXPECT) provides reliable high-temporal-resolution young water fraction estimates in three small Swiss catchments
Alessio Gentile
CORRESPONDING AUTHOR
Interuniversity Department of Regional and Urban Studies and Planning (DIST), Polytechnic University of Turin, 10125 Turin, Italy
Interuniversity Department of Regional and Urban Studies and Planning (DIST), University of Turin, 10125 Turin, Italy
Jana von Freyberg
School of Architecture, Civil and Environmental Engineering, EPFL, 1015 Lausanne, Switzerland
Mountain Hydrology and Mass Movements, Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), 8903 Birmensdorf, Switzerland
Davide Gisolo
Interuniversity Department of Regional and Urban Studies and Planning (DIST), Polytechnic University of Turin, 10125 Turin, Italy
Interuniversity Department of Regional and Urban Studies and Planning (DIST), University of Turin, 10125 Turin, Italy
Davide Canone
Interuniversity Department of Regional and Urban Studies and Planning (DIST), Polytechnic University of Turin, 10125 Turin, Italy
Interuniversity Department of Regional and Urban Studies and Planning (DIST), University of Turin, 10125 Turin, Italy
Stefano Ferraris
Interuniversity Department of Regional and Urban Studies and Planning (DIST), Polytechnic University of Turin, 10125 Turin, Italy
Interuniversity Department of Regional and Urban Studies and Planning (DIST), University of Turin, 10125 Turin, Italy
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Short summary
Can we leverage high-resolution and low-cost EC measurements and biweekly δ18O data to estimate the young water fraction at higher temporal resolution? Here, we present the EXPECT method that combines two widespread techniques: EC-based hydrograph separation and sine-wave models of the seasonal isotope cycles. The method is not without its limitations, but its application in three small Swiss catchments is promising for future applications in catchments with different characteristics.
Can we leverage high-resolution and low-cost EC measurements and biweekly δ18O data to estimate...
