Journal ArticleDOI
The use of environmental chloride and tritium to estimate total recharge to an unconfined aquifer
GB Allison,MW Hughes +1 more
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In this article, a portion of the Gambier plain underlain by an unconfined aquifer with readily definable hydrologic boundaries has been divided into a number of areas within which soil types have similar hydrological properties, and mean annual recharge has been estimated for each area using both the tritium concentration and the chloride concentration of water within the soil profile.Abstract:
A portion of the Gambier Plain underlain by an unconfined aquifer with readily definable hydrologic boundaries has been divided into a number of areas within which soil types have similar hydrologic properties. Mean annual recharge has been estimated for each area using both the tritium concentration and the chloride concentration of water within the soil profile. Good agreement was obtained between the two methods with local recharge varying between 50 and 250 mm year-1. Total mean annual recharge for the area has been estimated to be 2.4 ± 0.3 x 108 m3 year-1, and this compares favourably with an estimated discharge of 2.5 ± 0.3 x 108 m3 year-1.read more
Citations
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Journal ArticleDOI
Multi-method groundwater recharge estimation at Eshito micro-watershed, Rift Valley Basin in Ethiopia
TL;DR: In this paper, the authors proposed to understand recharge processes to improve sustainable groundwater resource management in Ethiopia, where shallow groundwater (SGW) is being developed for multiple purposes in Ethiopia without consid...
Journal ArticleDOI
Estimation of evapotranspiration losses in the vadose zone using stable isotopes and chloride mass balance method
TL;DR: In this article, stable isotope and chloride data of porewater were used to evaluate water fluxes through the vadose zone and thereby estimate evapotranspiration water losses in parts of the Nabogo catchment of the White Volta Basin in Ghana.
Journal ArticleDOI
Comprehending the groundwater recharge of a coastal city in humid tropical setting using stable isotopes.
TL;DR: In this article, stable isotope compositions of precipitation, groundwater and river water were determined to understand the significant recharge sources of phreatic aquifers in two differently urbanized environments, viz. urban and peri urban clusters of Kozhikode District, Kerala, and southern India.
Book ChapterDOI
Contribution of Isotopic and Nuclear Tracers to Study of Groundwaters
TL;DR: The application of environmental isotopes in hydrology dates back to 1935, when oxygen isotope ratios were first measured on Lake Michigan water by Dole (1935), but the first substantive scientific papers on the application of stable isotopes of oxygen and hydrogen to natural waters had to wait until after the second world war.
Journal ArticleDOI
Pitfalls in application of the conventional chloride mass balance (CMB) in karst aquifers and use of the generalised CMB method
TL;DR: In this paper, a generalised CMB that is applicable to groundwater basins with point recharge is described, which provides an alternative long-term net recharge estimation method for groundwater basin characterised by both point and diffuse recharge.
References
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Journal ArticleDOI
Photometric determination of chlorides in water.
Journal ArticleDOI
Chloride concentration in groundwater, recharge rate and rate of deposition of chloride in the Israel Coastal Plain
Erik Eriksson,Vachi Khunakasem +1 more
TL;DR: In this article, a study of the possibility of using chloride concentrations in groundwater for estimating recharge rates is described, the application being demonstrated on available data from the Coastal Plain Aquifer in Israel.
Journal ArticleDOI
Chloride balance of some farmed and forested catchments in southwestern Australia
A. J. Peck,D. H. Hurle +1 more
TL;DR: In this paper, the authors estimate that removal of forest vegetation from forested catchments has increased groundwater discharge of whole catchments by amounts ranging from about 1 to 13 cm3/cm2yr, and the characteristic times for equilibrium of chloride input and loss on farmed catchments are estimated to range from 30 to 400 years.
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Chloride concentration in groundwater, recharge rate and rate of deposition of chloride in the Israel Coastal Plain
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