A multi-tracer approach for understanding the functioning of heterogeneous phreatic coastal aquifers in humid tropical zones

Campillo, Ana; Taupin, Jean-Denis; Betancur, Teresita; Patris, Nicolas; Vergnaud, Virginie; Paredes, Vanessa; Villegas, Pedro

doi:10.1080/02626667.2021.1882679

Cited by 5 publications

(2 citation statements)

References 51 publications

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“…Other stable isotope studies focused on groundwater exploitation in Colombia have mainly focused on the identification of recharge areas and residence times in the Eastern Andes (Castrillon et al, 2003; Mariño‐Martinez et al, 2018); the Caribbean region (Campillo et al, 2021; Toro et al, 2009); the Cauca River (Betancur & Palacio, 2007; Medina et al, 2009), and the areas surrounding the Upper Claro River basin (UCRB) (Otálvaro et al, 2009). For instance, Saylor et al (2009) found that the precipitation amount exerts the greatest effect on δ 18 O and δ 2 H at the GNIP stations in the vicinity of Bogotá.…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal variability of stable isotopes in precipitation and stream water in a high elevation tropical catchment in the Central Andes of Colombia

Tangarife-Escobar

Koeniger

López‐Moreno³

et al. 2023

Hydrological Processes

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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 δ 2 H, δ 18 O, 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 δ 2 H = 8.2 δ 18 O + 12.3, R 2 = 0.98. The δ 2 H and δ 18 O values showed more depletion in heavy isotopes, and the d-excess values were more negative during the rainy season. An altitude effect of À0.11‰/100 m and À0.18‰/100 m was estimated for stream water and precipitation δ 18 O 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 δ 18 O 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.

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Section: Introductionmentioning

confidence: 99%

Spatiotemporal variability of stable isotopes in precipitation and stream water in a high elevation tropical catchment in the Central Andes of Colombia

Tangarife-Escobar

Koeniger

López‐Moreno³

et al. 2023

Hydrological Processes

View full text Add to dashboard Cite

show abstract

“…Other stable isotope studies focused on groundwater exploitation in Colombia have mainly focused on the identification of recharge areas and residence times in the Eastern Andes (Castrillon et al, 2003;Mariño-Martinez et al, 2018); the Caribbean region (Campillo et al, 2021;Toro et al, 2009); the Cauca River (Betancur & Palacio, 2007;Medina et al, 2009), and the areas surrounding the Upper Claro River basin (UCRB) (Otálvaro et al, 2009). For instance, Saylor et al (2009) found that the precipitation amount exerts the greatest effect on δ 18 O and δ 2 H at the GNIP stations in the vicinity of Bogotá.…”

Section: Introductionmentioning

confidence: 99%

Spatio-temporal variability of stable isotopes in precipitation and stream water of a high elevation tropical catchment in the Central Andes of Colombia

Tangarife-Escobar

Koeniger

López‐Moreno

et al. 2022

Preprint

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The Colombian Andean Mountains host the headwaters of the main basins of the country. However, the interactions between high-mountain ecosystems and the isotopic composition of water in this region has been poorly studied. Here we present and analyze the first set of stable isotopes data collected in the Central Andes of Colombia. Stable isotopic 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 δ H, δ O and d-excess were identified and compared to daily air temperature and precipitation at seven meteorological stations. A Local Meteoric Water Line was defined as δ²H = 8.13 δ O + 12.5, R =0.98. δ H, δ O and d-excess values of precipitation were more negative during the rainy season and changes were more related to precipitation events and amounts than to temperature. An altitude effect of -0.11 ‰ / 100 m and -0.18 ‰ / 100 m was estimated for stream water and precipitation, respectively, where the latter showed a non-linear behavior. The data set was compared to stations of the Global Network of Isotopes in Precipitation (GNIP) database in Colombia and a back-trajectory analysis of air masses was conducted to compare with d-excess. δ O weighted means changed with respect to the position of the Central Andes and the altitudinal range 2,100 to 3,100 m a.s.l.. High d-excess can be attributed to moisture recycling enhanced by the local ecosystems and the travel of precipitable water from the Amazon basin across the northern Andes. The results showed a high range of variation due to the differences in elevation, seasonality and atmospheric circulation patterns across the year. The present study contributes to fill the gap of spatial and temporal isotopic composition data in the northern Andes as well as to the implementation of the first “National Network for Isotopes” in Colombia.

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Assessing the Physicochemical and Microbiological Condition of Surface Waters in Urabá-Colombia: Impact of Human Activities and Agro-Industry

Aristizabal-Tique,

Gómez-Gallego,

Ramos-Hernández

et al. 2024

Water Air Soil Pollut

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Water resources in the Urabá region of Colombia, one of the most significant banana-producing areas for global consumption, are confronted with substantial challenges due to agro-industrial activities, population growth, untreated wastewater discharge, and excessive groundwater usage. This study aims to comprehensively evaluate the physicochemical and microbiological characteristics of surface waters in Urabá, delving into the influence of agro-industrial activities and human interventions on water quality. The evaluation includes a correlation analysis of multiple water quality parameters measured in ten significant rivers of the region. The findings reveal overall water pollution, potentially associated with the lack of wastewater treatment systems in nearby communities and indicate potential seawater intrusion due to groundwater overexploitation from human and agricultural activities. Among the studied rivers, the Apartadó River exhibits the poorest water quality, while the León River demonstrates better conditions, benefiting from less human interference and natural ecosystems.

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A multi-tracer approach for understanding the functioning of heterogeneous phreatic coastal aquifers in humid tropical zones

Cited by 5 publications

References 51 publications

Spatiotemporal variability of stable isotopes in precipitation and stream water in a high elevation tropical catchment in the Central Andes of Colombia

Spatiotemporal variability of stable isotopes in precipitation and stream water in a high elevation tropical catchment in the Central Andes of Colombia

Spatio-temporal variability of stable isotopes in precipitation and stream water of a high elevation tropical catchment in the Central Andes of Colombia

Assessing the Physicochemical and Microbiological Condition of Surface Waters in Urabá-Colombia: Impact of Human Activities and Agro-Industry

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