Articles | Volume 385
https://doi.org/10.5194/piahs-385-17-2024
https://doi.org/10.5194/piahs-385-17-2024
Post-conference publication
 | 
18 Apr 2024
Post-conference publication |  | 18 Apr 2024

Isotopic signature of precipitation in the semi-arid region of Ceará, Northeastern Brazil

Marjorie B. Kreis, Jean-Denis Taupin, Nicolas Patris, and Eduardo S. P. R. Martins

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Multidisciplinary approach to understand the salinization of fractured crystalline aquifers in semi-arid region
Marjorie Beate Kreis, Jean-Denis Taupin, Nicolas Patris, Patrick Lachassagne, Virginie Vergnaud-Ayraud, Julien Daniel Pierre Burte, Christian Leduc, and Eduardo Sávio Passos Rodrigues Martins
Proc. IAHS, 385, 393–398, https://doi.org/10.5194/piahs-385-393-2024,https://doi.org/10.5194/piahs-385-393-2024, 2024
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Cited articles

Ahmed, A. A., Shabana, A. R., and Saleh, A. A.: Using hydrochemical and isotopic data to determine sources of recharge and groundwater evolution in arid region from Eastern Desert, Egypt, J. Afr. Earth Sci., 151, 36–46, https://doi.org/10.1016/j.jafrearsci.2018.11.024, 2019. 
Babaye, M. S. A., Orban, P., Ousmane, B., Favreau, G., Brouyère, S., and Dassargues, A.: Characterization of recharge mechanisms in a Precambrian basement aquifer in semi-arid south-west Niger, Hydrogeol. J., 27, 475–491, https://doi.org/10.1007/s10040-018-1799-x, 2019. 
Burte, J.: Os pequenos aquiferos aluviais nas areas cristalinas semi-aridas: Funcionamento e estrategias de gestao. Estudo de caso no Nordeste brasileiro, PhD Thesis, University of Montpellier, https://theses.hal.science/tel-00399714 (last access: 5 July 2021), 2008. 
Chang, H. K., Gonçalves, R. D., Aggarwal, P. K., Stradioto, M. R., Hespanhol, E. C., Sturchio, N. C., and Araguas, L. J.: Groundwater isotope ratios reflect convective and stratiform (paleo) precipitation fractions in Brazil, J. Hydrol., 585, 124801, https://doi.org/10.1016/j.jhydrol.2020.124801, 2020. 
Da Silva Nobre, M. E., Gomes, D. F., Vasconcelos, S. M. S., de Lima Neto, I. O., Ferreira, S. K., and de Ponti Souza, D.: Estudo hidroquímico-ambiental do aquífero aluvionar do baixo Jáguaribe, Itaiçaba–Ceará, Revista do Instituto Geológico, 39, 77–92, https://doi.org/10.33958/revig.v39i3.601, 2019. 
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Short summary
The isotopic characterization of rainwater in the semi-arid regions of Northeastern Brazil (NEB) was only addressed by a few studies. Moreover, the isotopic data available were mainly linked to the establishment of the Global Network of Isotopes in Precipitation, which was paralyzed in the 1990s despite the extensive use of these data to improve the global knowledge of hydrological processes. This study allowed to improve the characterization of the isotopic signal of precipitation in NEB.