Articles | Volume 19, issue 6
https://doi.org/10.5194/gmd-19-2257-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-19-2257-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Development and technical paper
| 
19 Mar 2026
Development and technical paper |
| 19 Mar 2026
| 19 Mar 2026
EcoTWIN 1.0: a fully distributed tracer-aided ecohydrological model tracking water, isotopes, and nutrients
Department of Ecohydrology and Biogeochemistry, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
Doerthe Tetzlaff
Department of Ecohydrology and Biogeochemistry, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
Geography Institute and IRI THESys, Humboldt University of Berlin, Berlin, Germany
School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, China
Chris Soulsby
Northern Rivers Institute, School of Geosciences, University of Aberdeen, Aberdeen, UK
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Short summary
We developed EcoTWIN v1.0, a new fully distributed tracer-aided ecohydrological model that tracks water, isotopes, and nutrients fluxes. The model was successfully tested in 17 large European catchments across diverse geological and climatic backgrounds. As a tracer-aided model, EcoTWIN not only captures flow paths but also estimates water ages/travel times, thus bridging hydrology with water quality. This opens new possibilities for understanding the synergy between water and nitrogen cycles.
We developed EcoTWIN v1.0, a new fully distributed tracer-aided ecohydrological model that...
