Spatiotemporal variability of stable isotopes in precipitation and stream water in a high elevation tropical catchment in the Central Andes of Colombia
The Colombian Andean Mountains include the headwaters of the main basins of the country. However, the isotope composition of water in these high mountain ecosystems has been poorly studied. In this study, we analysed the first set of stable isotope data collected along a wide elevation range (2600–4...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:dnet:digitalcsic_::5ca835db2a00c641488bee3d4a87af1a |
| Acceso en línea: | http://hdl.handle.net/10261/345450 |
| Access Level: | acceso abierto |
| Palabra clave: | Air mass back-trajectory Altitude effect Colombian Andes d-excess Northern Andes Seasonal effect Stable isotopes |
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Spatiotemporal variability of stable isotopes in precipitation and stream water in a high elevation tropical catchment in the Central Andes of Colombia |
| title |
Spatiotemporal variability of stable isotopes in precipitation and stream water in a high elevation tropical catchment in the Central Andes of Colombia |
| spellingShingle |
Spatiotemporal variability of stable isotopes in precipitation and stream water in a high elevation tropical catchment in the Central Andes of Colombia Tangarife-Escobar, Andrés Air mass back-trajectory Altitude effect Colombian Andes d-excess Northern Andes Seasonal effect Stable isotopes |
| title_short |
Spatiotemporal variability of stable isotopes in precipitation and stream water in a high elevation tropical catchment in the Central Andes of Colombia |
| title_full |
Spatiotemporal variability of stable isotopes in precipitation and stream water in a high elevation tropical catchment in the Central Andes of Colombia |
| title_fullStr |
Spatiotemporal variability of stable isotopes in precipitation and stream water in a high elevation tropical catchment in the Central Andes of Colombia |
| title_full_unstemmed |
Spatiotemporal variability of stable isotopes in precipitation and stream water in a high elevation tropical catchment in the Central Andes of Colombia |
| title_sort |
Spatiotemporal variability of stable isotopes in precipitation and stream water in a high elevation tropical catchment in the Central Andes of Colombia |
| dc.creator.none.fl_str_mv |
Tangarife-Escobar, Andrés Koeniger, Paul López-Moreno, Juan I. Botía, Santiago Ceballos-Liévano, Jorge Luis |
| author |
Tangarife-Escobar, Andrés |
| author_facet |
Tangarife-Escobar, Andrés Koeniger, Paul López-Moreno, Juan I. Botía, Santiago Ceballos-Liévano, Jorge Luis |
| author_role |
author |
| author2 |
Koeniger, Paul López-Moreno, Juan I. Botía, Santiago Ceballos-Liévano, Jorge Luis |
| author2_role |
author author author author |
| dc.contributor.none.fl_str_mv |
German Academic Exchange Service Ministerio de Ciencia e Innovación (España) Agencia Estatal de Investigación (España) Max Planck Institute for Biogeochemistry López-Moreno, Juan I. [0000-0002-7270-9313] Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Air mass back-trajectory Altitude effect Colombian Andes d-excess Northern Andes Seasonal effect Stable isotopes |
| topic |
Air mass back-trajectory Altitude effect Colombian Andes d-excess Northern Andes Seasonal effect Stable isotopes |
| description |
The Colombian Andean Mountains include the headwaters of the main basins of the country. However, the isotope composition of water in these high mountain ecosystems has been poorly studied. In this study, we analysed the first set of stable isotope data collected along a wide elevation range (2600–4950 m a.s.l.) in the Central Andes of Colombia. The stable isotope composition of stream water and precipitation was determined for a period between 2017 and 2018 in the Upper Claro River basin. The driving factors influencing the spatial and temporal variability of δ2H, δ18O, and d-excess were identified, and compared with daily air temperature and precipitation data from seven meteorological stations. The local regression line was described by δ2H = 8.2 δ18O + 12.3, R2 = 0.98. The δ2H and δ18O values showed more depletion in heavy isotopes, and the d-excess values were more negative during the rainy season. An altitude effect of −0.11‰/100 m and −0.18‰/100 m was estimated for stream water and precipitation δ18O values, respectively, with the latter showing non-linear behaviour. The dataset was compared with Colombian stations of the Global Network of Isotopes in Precipitation database, and a back-trajectory analysis of air masses was conducted and compared with the d-excess values. The δ18O weighted mean values changed with respect to the position in the Central Andes, indicating contrasting altitude effects depending on the moisture sources. The most positive d-excess values were attributed to moisture recycling enhanced by local ecosystem conditions and the origin of precipitation from the Amazon basin, which change during the year and across the northern Andes. The results showed a high level of variation because of differences in elevation, seasonality, and atmospheric circulation patterns during the year. This study contributes to knowledge of spatial and temporal isotope composition data in the northern Andes, delineation of water supply basins, and to the definition of ecosystem boundaries in the high mountains of Colombia. |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023 2024 2024 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 Publisher's version info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10261/345450 |
| url |
http://hdl.handle.net/10261/345450 |
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Inglés |
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Inglés |
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#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-124220OB-I00 Tangarife-Escobar, Andrés; Koeniger, Paul; López-Moreno, Juan I.; Botía, Santiago; Ceballos-Liévano, Jorge Luis. Spatiotemporal variability of stable isotopes in precipitation and stream water in a high elevation tropical catchment in the Central Andes of Colombia. https://doi.org/10.1002/hyp.14873. http://hdl.handle.net/10261/345450 https://doi.org/10.1002/hyp.14873 Sí |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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John Wiley & Sons |
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John Wiley & Sons |
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reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC) |
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Spatiotemporal variability of stable isotopes in precipitation and stream water in a high elevation tropical catchment in the Central Andes of ColombiaTangarife-Escobar, AndrésKoeniger, PaulLópez-Moreno, Juan I.Botía, SantiagoCeballos-Liévano, Jorge LuisAir mass back-trajectoryAltitude effectColombian Andesd-excessNorthern AndesSeasonal effectStable isotopesThe Colombian Andean Mountains include the headwaters of the main basins of the country. However, the isotope composition of water in these high mountain ecosystems has been poorly studied. In this study, we analysed the first set of stable isotope data collected along a wide elevation range (2600–4950 m a.s.l.) in the Central Andes of Colombia. The stable isotope composition of stream water and precipitation was determined for a period between 2017 and 2018 in the Upper Claro River basin. The driving factors influencing the spatial and temporal variability of δ2H, δ18O, and d-excess were identified, and compared with daily air temperature and precipitation data from seven meteorological stations. The local regression line was described by δ2H = 8.2 δ18O + 12.3, R2 = 0.98. The δ2H and δ18O values showed more depletion in heavy isotopes, and the d-excess values were more negative during the rainy season. An altitude effect of −0.11‰/100 m and −0.18‰/100 m was estimated for stream water and precipitation δ18O values, respectively, with the latter showing non-linear behaviour. The dataset was compared with Colombian stations of the Global Network of Isotopes in Precipitation database, and a back-trajectory analysis of air masses was conducted and compared with the d-excess values. The δ18O weighted mean values changed with respect to the position in the Central Andes, indicating contrasting altitude effects depending on the moisture sources. The most positive d-excess values were attributed to moisture recycling enhanced by local ecosystem conditions and the origin of precipitation from the Amazon basin, which change during the year and across the northern Andes. The results showed a high level of variation because of differences in elevation, seasonality, and atmospheric circulation patterns during the year. This study contributes to knowledge of spatial and temporal isotope composition data in the northern Andes, delineation of water supply basins, and to the definition of ecosystem boundaries in the high mountains of Colombia.This work was developed with the technical advice of the Instituto de Hidrología, Meteorología y Estudios Ambientales (IDEAM) in Colombia and partially sponsored by the German Academic Exchange Service (DAAD) of Germany within the framework of the development-related postgraduate course (EPOS) program and the project MARGISNOW (PID2021-124220OB-100) (Spanish Ministry of Science and Innovation).Open Access funding enabled and organized by Projekt DEAL through the Max Planck Institute for Biogeochemistry.Peer reviewedJohn Wiley & SonsGerman Academic Exchange ServiceMinisterio de Ciencia e Innovación (España)Agencia Estatal de Investigación (España)Max Planck Institute for BiogeochemistryLópez-Moreno, Juan I. [0000-0002-7270-9313]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/345450reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-124220OB-I00Tangarife-Escobar, Andrés; Koeniger, Paul; López-Moreno, Juan I.; Botía, Santiago; Ceballos-Liévano, Jorge Luis. Spatiotemporal variability of stable isotopes in precipitation and stream water in a high elevation tropical catchment in the Central Andes of Colombia. https://doi.org/10.1002/hyp.14873. http://hdl.handle.net/10261/345450https://doi.org/10.1002/hyp.14873Síinfo:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::5ca835db2a00c641488bee3d4a87af1a2026-05-22T06:33:51Z |
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15,81155 |