RECHARGE OF THE CONTINENTAL TERMINAL WATE R-TABLE (NIAMEY, NIGER) ESTIMATED FROM TRITIUM MEASUREMENTS AND MODELING

Authors
LEDUC C TAUPIN JD LASALLE CL
Citation
C. Leduc et al., RECHARGE OF THE CONTINENTAL TERMINAL WATE R-TABLE (NIAMEY, NIGER) ESTIMATED FROM TRITIUM MEASUREMENTS AND MODELING, Comptes rendus de l'Academie des sciences. Serie II. Sciences de la terre et des planetes, 323(7), 1996, pp. 599-605
Citations number
9
Categorie Soggetti
Geosciences, Interdisciplinary
Journal title
Comptes rendus de l'Academie des sciences. Serie II. Sciences de la terre et des planetes → ACNP
ISSN journal
12518050
Volume
323
Issue
7
Year of publication
1996
Pages
599 - 605
Database
ISI
SICI code
1251-8050(1996)323:7<599:ROTCTW>2.0.ZU;2-9
Abstract
As often in the Sahelian belt, recharge of the Continental Terminal wa ter table near Niamey, Niger, is essentially due to rainfall infiltrat ion through numerous temporary pools. Tritium content in rain over the past 40 years is reconstructed and used by a simple model to calculat e the groundwater renewal rate according to measurements throughout th e aquifer. This isotopic estimate (25 mm per year) is close to the hyd rodynamical estimate.