Articles | Volume 27, issue 15
https://doi.org/10.5194/hess-27-2883-2023
© Author(s) 2023. 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-27-2883-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
02 Aug 2023
Research article |
| 02 Aug 2023
| 02 Aug 2023
Isotope-derived young water fractions in streamflow across the tropical Andes mountains and Amazon floodplain
Department of Earth Sciences, University of Southern California, Los
Angeles, California 90089, USA
now at: Schmid College of Science and Technology, Chapman University, Orange, California 92866, USA
Daxs Herson Coayla Rimachi
Escuela profesional de Ingenieria Forestal y Medio Ambiente, Universidad Nacional San Antonio Abad del Cusco (UNSAAC), Cusco, Peru
Escuela de posgrado de Ingenieria Ambiental, Universidad Científica del Sur, Lima, Peru
Adan Julian Ccahuana Quispe
Facultad de Ciencias Biologicas Universidad Nacional San Antonio Abad del Cusco (UNSAAC), Cusco, Peru
Abra Atwood
Department of Earth Sciences, University of Southern California, Los
Angeles, California 90089, USA
A. Joshua West
Department of Earth Sciences, University of Southern California, Los
Angeles, California 90089, USA
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Short summary
Mountains store and release water, serving as water towers for downstream regions and affecting global sediment and carbon fluxes. We use stream and rain chemistry to calculate how much streamflow comes from recent rainfall across seven sites in the Andes mountains and the nearby Amazon lowlands. We find that the type of rock and the intensity of rainfall control water retention and release, challenging assumptions that mountain topography exerts the primary effect on watershed hydrology.
Mountains store and release water, serving as water towers for downstream regions and affecting...
