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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Book ChapterDOI
Millimeter- to Kilometer-Scale Variations in Vadose-Zone Bedrock Solutes: Implications for Estimating Recharge in Arid Settings
Journal ArticleDOI
Size-dependent Behaviour of Weak Intact Rocks
TL;DR: In this article, the size-dependent behavior of two different weak rocks namely, Gambier limestone and artificial rock with uniaxial compressive strength of less than 10 MPa were investigated experimentally and analytically.
Book ChapterDOI
Recharge Estimation from the Depth-Distribution of Environmental Chloride in the Unsaturated Zone — Western Australian Examples
TL;DR: In this paper, the authors presented methods for computing long-term average recharge rates to groundwater from the analyses of the depth-distribution of environmental chloride in the unsaturated zone.
Journal ArticleDOI
Late-Quaternary Recharge Determined from Chloride in Shallow Groundwater in the Central Great Plains
TL;DR: An extensive suite of isotopic and geochemical tracers in groundwater has been used to provide hydrologic assessments of the hierarchy of flow systems in aquifers underlying the central Great Plains (southeastern Colorado and western Kansas) of the United States and to determine the late Pleistocene and Holocene paleotemperature and paleorecharge record as mentioned in this paper.
Journal ArticleDOI
Controls on the variability of net infiltration to desert sandstone
TL;DR: In this article, a conceptual model of net infiltration to desert sandstone and then an empirical equation for its spatial quantification at the watershed scale using linear least squares inversion methods for evaluating controlling parameters (independent variables) based on estimated net infiltration rates (dependent variables).
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
Erik Eriksson,Vachi Khunakasem +1 more