RT Journal Article
T1 Contribution of isotopic research techniques to characterize high-mountain-Mediterranean karst aquifers: The Port del Comte (Eastern Pyrenees) aquifer
A1 Herms, Ignasi
A1 Jódar, Jorge
A1 Soler, Albert
A1 Vadillo-Pérez, Iñaki
A1 Lambán, Javier
A1 Martos-Rosillo, Sergio
A1 Núñez, J.A.
A1 Arnó, Georgina
A1 Jorge, Juan
K1 Isótopos estables
AB Water resources in high mountain karst aquifers are usually characterized by high rainfall, recharge and discharge that lead to the sustainability of the downstream ecosystems. Nevertheless, these hydrological systems are vulnerable to the global change impact. The mean transit time (MTT) is a key parameter to describe the behavior of these hydrologic systems and also to assess their vulnerability. Thiswork is focused on estimating MTT by using environmental tracers in the framework of high-mountain karst systems with a very thick unsaturated zone (USZ).To this end, it is adapted to alpine zones a methodology that combines a semi-distributed rainfall runoff model to estimate recharge time series, and a lumped-parameter model to obtain ΜΤΤ. The methodology has been applied to the Port del Comte Massif (PCM) hydrological system (Southeastern Pyrenees, NE Spain), a karst aquifer system with an overlying 1000 m thick USZ. Six catchment areas corresponding to most important springs of the system are considered. The obtained results show that hydrologically the behavior of the system can be described by an exponential flow model (EM), with MTT ranging between 1.9 and 2.9 years. These ΜΤΤ values are shorter than those obtained by considering a constant recharge rate along time, which is the easiest and most applied aquifer recharge hypothesis when estimating ΜΤΤ through lumped-parameter models.
PB Elsevier
SN 0048-9697
YR 2019
FD 2019
LK https://hdl.handle.net/10630/35804
UL https://hdl.handle.net/10630/35804
LA eng
NO I. Herms, J. Jódar, A. Soler, I. Vadillo, L.J. Lambán, S. Martos-Rosillo, J.A. Núñez, G. Arnó, J. Jorge, Contribution of isotopic research techniques to characterize high-mountain-Mediterranean karst aquifers: The Port del Comte (Eastern Pyrenees) aquifer, Science of The Total Environment, Volume 656, 2019, Pages 209-230, ISSN 0048-9697, https://doi.org/10.1016/j.scitotenv.2018.11.188. (https://www.sciencedirect.com/science/article/pii/S0048969718345467)
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 21 ene 2026