Journal ArticleDOI
The use of environmental chloride and tritium to estimate total recharge to an unconfined aquifer
GB Allison,MW Hughes +1 more
Reads0
Chats0
TLDR
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
More filters
Journal ArticleDOI
Elemental Contamination of Rainwater by Airborne Dust in Tamale Township Area of the Northern Region of Ghana
TL;DR: In this article, the authors collected rainwater samples from Tamale town in the 1997 and 1998 rainy seasons and analyzed the ion ratios with Cl− (Na+/Cl−, K+/CL−, Ca2+/cl−/Cl − Mg2+ /Cl− and SO42−/CCl−) in rainwater sample.
Journal ArticleDOI
Estimation of groundwater recharge in weathered basement aquifers, southern Zimbabwe: a geochemical approach
David Macdonald,W. Mike Edmunds +1 more
TL;DR: In this paper, the authors used geochemical techniques to estimate groundwater recharge and its spatial variability in basement terrain in a semi-arid area of southern Zimbabwe, and found that there are significant differences in hydrogeological properties of weathered basement derived from different primary lithologies.
Journal ArticleDOI
Chloride tracer of the loess unsaturated zone under sub-humid region: A potential proxy recording high-resolution hydroclimate.
TL;DR: The first investigation of the USZ Cl to hydroclimatic reconstruction in a non-arid region is investigated, suggesting that the Cl proxy can be used in sub-humid areas, and is sensitive to wet/dry alternations that are largely driven by the Asian monsoon intensity.
DissertationDOI
Balanço hídrico em zona de afloramento do sistema aqüífero guarani a partir de monitoramento hidrogeológico em bacia representativa
TL;DR: In this article, an estimativa for recarga direta e profunda do Sistema Aquifero Guarani (SAG) at a bacia representativa do Ribeirao da Onca, localizada em zona de afloramento do SAG no Estado de Sao Paulo, was presented.
Journal ArticleDOI
Geochemistry of sediment moisture in the Badain Jaran desert: Implications of recent environmental changes and water-rock interaction
TL;DR: In this article, pore waters in these unsaturated zone sediments (1.5% moisture by wet weight) were directly extracted using immiscible liquid displacement and then analyzed for major anions, cations and trace elements.
References
More filters
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.
Related Papers (5)
Chloride concentration in groundwater, recharge rate and rate of deposition of chloride in the Israel Coastal Plain
Erik Eriksson,Vachi Khunakasem +1 more