Tracer hydrology of the data-scarce and heterogeneous Central American Isthmus

Numerous socio-economic activities depend on the seasonal rainfall and groundwater recharge cycle across the Central American Isthmus. Population growth and unregulated land use changes resulted in extensive surface water pollution and a large dependency on groundwater resources. This work combines...

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Main Authors:	Sánchez-Murrillo, Ricardo, Esquivel-Hernández, Germain, Corrales-Salazar, José L., Castro-Chacón, Laura, Durán-Quesada, Ana M., Guerrero-Hernández, Manuel, Delgado, Valeria, Barbereba, Javier, Montenegro-Rayo, Katia, Calderón, Heyddy, 10 autores más.
Format:	Artículo
Language:	Inglés
Published:	2021
Subjects:	HIDROLOGIA SOCIOECONÓMICO AGUAS SUBTERRANEAS CONTAMINACION RECURSOS HIDRICOS ISOTOPOS AGUA SUPERFICIAL HUMEDAD SOSTENIBILIDAD AMERICA CENTRAL
Online Access:	https://repositorio.catie.ac.cr/handle/11554/10320

id	RepoCATIE10320
record_format	dspace
spelling	RepoCATIE103202022-08-05T18:51:06Z Tracer hydrology of the data-scarce and heterogeneous Central American Isthmus Sánchez-Murrillo, Ricardo Esquivel-Hernández, Germain Corrales-Salazar, José L. Castro-Chacón, Laura Durán-Quesada, Ana M. Guerrero-Hernández, Manuel Delgado, Valeria Barbereba, Javier Montenegro-Rayo, Katia Calderón, Heyddy 10 autores más. HIDROLOGIA SOCIOECONÓMICO AGUAS SUBTERRANEAS CONTAMINACION RECURSOS HIDRICOS ISOTOPOS AGUA SUPERFICIAL HUMEDAD SOSTENIBILIDAD AMERICA CENTRAL Numerous socio-economic activities depend on the seasonal rainfall and groundwater recharge cycle across the Central American Isthmus. Population growth and unregulated land use changes resulted in extensive surface water pollution and a large dependency on groundwater resources. This work combines stable isotope variations in rainfall, surface water, and groundwater of Costa Rica, Nicaragua, El Salvador, and Honduras to develop a regionalized rainfall isoscape, isotopic lapse rates, spatial–temporal isotopic variations, and air mass back trajectories determining potential mean recharge elevations, moisture circulation patterns, and surface water– groundwater interactions. Intra-seasonal rainfall modes resulted in two isotopically depleted incursions (W-shaped isotopic pattern) during the wet season and two enriched pulses during the mid-summer drought and the months of the strongest trade winds. Notable isotopic sub-cloud fractionation and near-surface secondary evaporation were identified as common denominators within the Central American Dry Corridor. Groundwater and surface water isotope ratios depicted the strong orographic separation into the Caribbean and Pacific domains, mainly induced by the governing moisture transport from the Caribbean Sea, complex rainfall producing systems across the N-S mountain range, and the subsequent mixing with local evapotranspiration, and, to a lesser degree, the eastern Pacific Ocean fluxes. Groundwater recharge was characterized by (a) depleted recharge in highland areas (72.3%), (b) rapid recharge via preferential flow paths (13.1%), and enriched recharge due to near-surface secondary fractionation (14.6%). Median recharge elevation ranged from 1,104 to 1,979 m a.s.l. 2021-02-18T03:06:50Z 2021-02-18T03:06:50Z 2020 Artículo DOI: 10.1002/hyp.13758 https://repositorio.catie.ac.cr/handle/11554/10320 en Hydrological Processes, (2020), pages 1–16. info:eu-repo/semantics/openAccess application/pdf
institution	Centro Agronómico Tropical de Investigación y Enseñanza
collection	Repositorio CATIE
language	Inglés
topic	HIDROLOGIA SOCIOECONÓMICO AGUAS SUBTERRANEAS CONTAMINACION RECURSOS HIDRICOS ISOTOPOS AGUA SUPERFICIAL HUMEDAD SOSTENIBILIDAD AMERICA CENTRAL
spellingShingle	HIDROLOGIA SOCIOECONÓMICO AGUAS SUBTERRANEAS CONTAMINACION RECURSOS HIDRICOS ISOTOPOS AGUA SUPERFICIAL HUMEDAD SOSTENIBILIDAD AMERICA CENTRAL Sánchez-Murrillo, Ricardo Esquivel-Hernández, Germain Corrales-Salazar, José L. Castro-Chacón, Laura Durán-Quesada, Ana M. Guerrero-Hernández, Manuel Delgado, Valeria Barbereba, Javier Montenegro-Rayo, Katia Calderón, Heyddy 10 autores más. Tracer hydrology of the data-scarce and heterogeneous Central American Isthmus
description	Numerous socio-economic activities depend on the seasonal rainfall and groundwater recharge cycle across the Central American Isthmus. Population growth and unregulated land use changes resulted in extensive surface water pollution and a large dependency on groundwater resources. This work combines stable isotope variations in rainfall, surface water, and groundwater of Costa Rica, Nicaragua, El Salvador, and Honduras to develop a regionalized rainfall isoscape, isotopic lapse rates, spatial–temporal isotopic variations, and air mass back trajectories determining potential mean recharge elevations, moisture circulation patterns, and surface water– groundwater interactions. Intra-seasonal rainfall modes resulted in two isotopically depleted incursions (W-shaped isotopic pattern) during the wet season and two enriched pulses during the mid-summer drought and the months of the strongest trade winds. Notable isotopic sub-cloud fractionation and near-surface secondary evaporation were identified as common denominators within the Central American Dry Corridor. Groundwater and surface water isotope ratios depicted the strong orographic separation into the Caribbean and Pacific domains, mainly induced by the governing moisture transport from the Caribbean Sea, complex rainfall producing systems across the N-S mountain range, and the subsequent mixing with local evapotranspiration, and, to a lesser degree, the eastern Pacific Ocean fluxes. Groundwater recharge was characterized by (a) depleted recharge in highland areas (72.3%), (b) rapid recharge via preferential flow paths (13.1%), and enriched recharge due to near-surface secondary fractionation (14.6%). Median recharge elevation ranged from 1,104 to 1,979 m a.s.l.
format	Artículo
author	Sánchez-Murrillo, Ricardo Esquivel-Hernández, Germain Corrales-Salazar, José L. Castro-Chacón, Laura Durán-Quesada, Ana M. Guerrero-Hernández, Manuel Delgado, Valeria Barbereba, Javier Montenegro-Rayo, Katia Calderón, Heyddy 10 autores más.
author_facet	Sánchez-Murrillo, Ricardo Esquivel-Hernández, Germain Corrales-Salazar, José L. Castro-Chacón, Laura Durán-Quesada, Ana M. Guerrero-Hernández, Manuel Delgado, Valeria Barbereba, Javier Montenegro-Rayo, Katia Calderón, Heyddy 10 autores más.
author_sort	Sánchez-Murrillo, Ricardo
title	Tracer hydrology of the data-scarce and heterogeneous Central American Isthmus
title_short	Tracer hydrology of the data-scarce and heterogeneous Central American Isthmus
title_full	Tracer hydrology of the data-scarce and heterogeneous Central American Isthmus
title_fullStr	Tracer hydrology of the data-scarce and heterogeneous Central American Isthmus
title_full_unstemmed	Tracer hydrology of the data-scarce and heterogeneous Central American Isthmus
title_sort	tracer hydrology of the data-scarce and heterogeneous central american isthmus
publishDate	2021
url	https://repositorio.catie.ac.cr/handle/11554/10320
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Tracer hydrology of the data-scarce and heterogeneous Central American Isthmus

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