The use of water stable isotopes for a better understanding of hydrogeological processes in Haiti: overview of existing δ18O and ... View Full Text


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Article Info

DATE

2022-05-25

AUTHORS

L. Gourcy, J. K. Adamson, W. J. Miner, T. Vitvar, D. Belizaire

ABSTRACT

Isotope hydrological studies carried out since 1987 in Haiti have proven to be effective in improving conceptual models of the principal aquifers in this Caribbean island nation. However, many of these studies have been limited and are mostly unpublished. It is, therefore, important to share the available datasets with scientists and water managers to support further studies and guide decision-making. Eleven datasets were compiled in a unique database for continued advancement and application. This dataset now contains 248 δ18O and δ2H results from water samples collected at 190 locations throughout the country. δ18O and δ2H values range, respectively, from –3.8 to –8.95‰ and –67.4 to –16.8‰ for precipitation (n = 5), 0.9 to 2.76‰ and 8.8 to 18.4‰ for lakes (n = 4), –2.61 to 4.98‰ and –26.63 to 28.2‰ for rivers (n = 11), –5.11 to –2.6‰ and –29.8 to –6.9‰ for springs (n = 82) excluding hot springs, and –5.1 to –1.37‰ and –29.4 to –2.9‰ for boreholes (n = 142). The overall presentation of the available data is complemented with an overview of the studies in which stable isotope data acquisition was performed. The global dataset is presented under three primary contexts: (1) elaboration of a local isotope meteoric water line of equation δ2H = 7.2δ18O + 8.8 supported with data predominately from the Ouest jurisdictional department, (2) spatial variability analysis of the dataset, and (3) definition of the altitude gradient (per 100 m) using freshwater springs of the Plaine du Cul-de-Sac/Massif de la Selle area of –6.67‰ for δ2H and –0.09‰ for δ18O. More... »

PAGES

1387-1397

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s10040-022-02498-1

DOI

http://dx.doi.org/10.1007/s10040-022-02498-1

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1148152884


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194 schema:name Facultad de Ingeniería en Ciencias de la Tierra, ESPOL Escuela Superior Politécnica del Litoral, Guayaquil, Ecuador
195 rdf:type schema:Organization
 




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