Download or read book Geophysical Techniques Applied to Groundwater Recharge and Discharged Investigations in the David Leake Catchment Western Australia written by Robert Jonathan Angus and published by . This book was released on 1992 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Australian New Zealand Physicist written by and published by . This book was released on 1991 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies in Catchment Hydrology written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geophysical Investigations of Water Deposits Western Australia written by W. A. Wiebenga and published by . This book was released on 1955 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physical and Chemical Techniques for Discharge Studies written by R. B. Salama and published by CSIRO. This book was released on 1997-12-31 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Groundwater discharge is associated with salinity and pollution problems. The widespread presence of millions of saline lakes in North America, Africa and Australia, shows that across the geological record, most salinity and desertification problems have been caused by saline groundwater discharge. In recent times, dryland salinity has spread widely in southern Australia, resulting in the loss of more than 50% of the fresh streams in Western Australia and causing major salinity problems in the Murray River in South Australia.
Download or read book Techniques of Water resources Investigations of the United States Geological Survey chap D1 Collection of environmental data Application of surface geophysics to ground water investigations written by Geological Survey (U.S.) and published by . This book was released on 1988 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geophysical Investigations of Water Deposits Western Australia written by W. A. Wiebenga and published by . This book was released on 1955 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Hydrogeochemical Investigation of the Surface Water and Groundwater Interactions of a Semi arid Wetland System Western Australia written by Lindsay Bourke and published by . This book was released on 2011 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: [Truncated abstract] A 932 ha subcatchment and its associated wetland suite, located in the semi-arid wheatbelt region Western Australia, was investigated in this study. The lower part of the subcatchment exhibits environmental degradation due to altered hydrology resulting from clearing of deep-rooted perennial vegetation. Two main potential threats exist; firstly, upgradient migration of hypersaline groundwater from a regional primary saline valley floor; secondly, increased water and solute loads due to enhanced recharge within the local subcatchment. The hydrological function of the subcatchment and individual wetlands, and uncertainties relating to spatial scales of influence was investigated through combing physical hydrological and hydrochemical methods. A long-term trend of rising groundwater levels within the study area is evident since the clearing of vegetation, and levels have continued to rise since 2006 at about +0.06 m/yr. A ten-fold increase in the TDS at a hyposaline wetland since 1970 indicates active discharge of both stored and replenished water and solutes to the lower catchment. These trends are occurring in spite of a declining regional rainfall trend since the mid 1970's. The aquifers in the lower discharge area appear to be near full capacity although the subcatchment is yet to reach a post-clearing hydrological equilibrium. Significant groundwater TDS and density gradients occur across the study area, increasing rapidly down gradient in both the unconfined and semi-confined aquifers. The ionic compositions of groundwater, surface water and rainfall are dominated by Cl- and Na-, with overall composition being largely proportional to seawater. Cl-/Br- weight ratios indicate that halite dissolution is unlikely to be a primary factor in elevated ionic concentration. Hence, solutes are chiefly sourced from marine-derived aerosols in rainfall. Elevated nutrient concentrations (high N and lower P) were observed, although the absence of algal blooms in wetlands indicates that P is likely a limiting nutrient. Fractionation enriched stable isotopes (eD and e18O) and greater ion concentrations are observed in the deep hypersaline semi-confined aquifer compared to the regional primary saline valley floor aquifer. This indicates the occurrence of reflux brines beneath the hypersaline wetland, resulting in the export of solutes to the underlying aquifers. Seasonal changes in both ionic and stable isotope (eD and e18O) composition within the deep hypersaline semi-confined aquifer further suggest that water and solute exchange is driven by both groundwater head and density gradients. Excess recharge in the upper recharge domain is expressed down gradient at the lower discharge domain as both groundwater discharge and enhanced surface water flows...
Download or read book Groundwater Investigation Program in Western Australia 2005 to 2020 written by and published by . This book was released on 2005 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater Recharge from the Gascoyne River Western Australia written by Wade John Dodson and published by . This book was released on 2009 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geophysical Methods for Investigating Ground water Recharge written by and published by . This book was released on 2007 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater Recharge Investigations in the Upper Marne River Catchment South Australia written by Eddie Banks and published by . This book was released on 2007 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigating Western Australia s Groundwater Resources written by Western Australia. Dept. of Water and published by . This book was released on 2006 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Use of Geophysical Techniques in Groundwater Investigations Summary Report for 1986 written by Ontario. Water Resources Branch and published by . This book was released on 1987 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Observations on Groundwater Recharge in the Westdale Catchment written by M. F. Lewis and published by . This book was released on 1998 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater Hydrology Studies in the Yarragil Catchment Western Australia written by P. Ritson and published by . This book was released on 1981 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater Recharge and Flow Investigations in the Western Mount Lofty Ranges South Australia written by and published by . This book was released on 2007 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
