dc.creator | Escauriaza-Mesa, Cristián Rodrigo | |
dc.creator | Contreras, María Teresa | |
dc.creator | Muellendorff, Daniel | |
dc.creator | Pastén, Pablo | |
dc.creator | Pizarro, Gonzalo E | |
dc.date | 2018-09-03T12:56:31Z | |
dc.date | 2022-06-18T22:00:42Z | |
dc.date | 2018-09-03T12:56:31Z | |
dc.date | 2022-06-18T22:00:42Z | |
dc.date | 2014-12-19 | |
dc.date | 2014 | |
dc.date | 2014-12-15 | |
dc.date.accessioned | 2023-08-21T22:53:48Z | |
dc.date.available | 2023-08-21T22:53:48Z | |
dc.identifier | 1130940 | |
dc.identifier | https://hdl.handle.net/10533/219715 | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8292390 | |
dc.description | Rapid changes due to anthropic interventions in high-altitude environments, such as the Altiplano
region in South America, require new approaches to understand the connections between
physical and biogeochemical processes. Alterations of the water quality linked to the river
morphology can affect the ecosystems and human development in the long-term.
The future construction of a reservoir in the Lluta river, located in northern Chile, will change the
spatial distribution of arsenic-rich sediments, which can have significant effects on the lower parts
of the watershed.
In this investigation we develop a coupled numerical model to predict and evaluate the
interactions between morphodynamic changes in the Lluta reservoir, and conditions that can
potentially desorb arsenic from the sediments. Assuming that contaminants are mobilized under
anaerobic conditions, we calculate the oxygen concentration within the sediments to study the
interactions of the delta progradation with the potential arsenic release.
This work provides a framework for future studies aimed to analyze the complex connections
between morphodynamics and water quality, when contaminant-rich sediments accumulate in a
reservoir. The tool can also help to design effective risk management and remediation strategies
in these extreme environments. | |
dc.language | eng | |
dc.relation | instname: Conicyt | |
dc.relation | reponame: Repositorio Digital RI2.0 | |
dc.relation | AGU (American Geophysical Union) Fall Meeting | |
dc.relation | info:eu-repo/grantAgreement//1130940 | |
dc.relation | info:eu-repo/semantics/dataset/hdl.handle.net/10533/93486 | |
dc.rights | info:eu-repo/semantics/openAccess | |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Chile | |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Chile | |
dc.rights | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | |
dc.rights | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | |
dc.title | Reservoir and contaminated sediments impacts in high-Andean environments: Morphodynamic interactions with biogeochemical processes | |
dc.type | Ponencia | |
dc.type | info:eu-repo/semantics/lecture | |
dc.coverage | San Francisco | |