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
Using remote sensing to regionalize local precipitation recharge rates obtained from the Chloride Method
TL;DR: In this article, a method is developed to calculate a recharge map that can be used in a groundwater model, and the relative distribution of recharge is obtained from remotely sensed data and then calibrated with local values of recharge derived from the Chloride Method.
Journal ArticleDOI
Tritium profiles of pore water in the Chinese loess unsaturated zone: Implications for estimation of groundwater recharge
Ruifen Lin,Keqin Wei +1 more
TL;DR: In this paper, two cores were taken in 1997 and 1998 in the loess unsaturated zone in Inner Mongolia and Shanxi province, respectively, where the tritium profiles of pore water from a test pit and a core taken in 1980's had already been reported.
Journal ArticleDOI
Distribution of environmental chloride in relation to subsurface hydrology
TL;DR: In this paper, a steady-state model of water and chloride movement was used to estimate vertical soil water flux density q w from observed concentrations of chloride, and the authors concluded that preferred water flow in structural and textural heterogeneities within the regolith is the dominant mechanism of recharge.
Journal ArticleDOI
Limits to recharge of groundwater from Tibetan plateau to the Gobi desert, implications for water management in the mountain front
TL;DR: In this article, multiple isotopic and hydrogeochemical tracers were utilized to understand the limits to recharge from Tibetan plateau to Gobi desert, and the average direct recharge rate according to chloride mass balance is between 0.9-2.5 mm yr(-1) based on an annual rainfall of 120 mm yr(1), indicating that this has negligible impact on groundwater.
Journal ArticleDOI
Heat, chloride, and specific conductance as ground water tracers near streams.
TL;DR: Combined analyses of temperature, chloride, and specific conductance led to improved quantification of the spatial and temporal variability of stream water exchange with shallow ground water in an alluvial system.
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