groundwater resource Articles

  • Groundwater resource exploration

    Resistivity method is very suitable for groundwater exploration. Two methods can be used, the surface method and crosshole method. Surface method is cost effective, though it is sometime not as accurate as the crosshole method. Geologists usually narrow down the exploration area and then operators can use geophysical methods to find groundwater.  Surface method involves laying two cables on ...

  • Karst groundwater: a challenge for new resources

    Karst aquifers have complex and original characteristics which make them very different from other aquifers: high heterogeneity created and organised by groundwater flow, large voids, high flow velocities up to several hundreds of m/h, high flow rate springs up to some tens of m3/s. Different conceptual models, known from the literature, attempt to take into account all these particularities. The ...


    By Springer

  • Monitoring groundwater resources for Municipalities - Case Study

    Background The City of Tucson is located in the Sonoran Desert in southwest United States (U.S.), approximately 100 km north of the Mexico-U.S. border. Tucson Water operates more than 215 groundwater wells, covering more than 300 square miles, providing more than 37 billion gallons (140 million m3) of potable water to its 730,000 inhabitants each year. The region receives only 12 inches of ...

  • The application of groundwater modelling to simulate the behaviour of groundwater resources in the Ramhormooz Aquifer, Iran

    In this study, groundwater modelling was proposed as management tool in Ramhormooz Plain, south western Iran. After definition of a conceptual model, the necessary data were defined into various packages of MODFLOW. Subsequently, the model was calibrated by trial and error estimation and the results were finally optimised by PMWIN through PEST code. After verification process, the model was used ...


    By Inderscience Publishers

  • Large Precipitation Events are Critical in Replenishing Groundwater Resources

    Large precipitation events that occur about every 10 years are a critical source of recharge for replenishing groundwater resources, according to a new study by the U.S. Geological Survey and the Bureau of Reclamation. Groundwater is a vital source of water in the western United States, and will be increasingly ...

  • USGS surveys, models high plains groundwater resources

    A United States Geological Survey publication and model of groundwater resources in the Northern High Plains aquifer can be used to better understand the region’s water resources, a critical component of scientific water management. This type of comprehensive study has not been made in more than 30 years The models can be used to assess the flow, quantity, sources, and sinks of groundwater ...


    By Fluence Corporation

  • Water resources

    Water resources are sources of water that are useful or potentially useful to humans. Uses of water include agricultural, industrial, ...


    By IWA Publishing

  • Groundwater Remediation

    Groundwater remediation or clean-up is required when concentrations of contaminants exceed or are expected to exceed predetermined levels for the type of resource that is impacted (Grossman et.al., 2008). For example, lead levels in drinking water should not exceed the EPA action level of 0.015 mg/L. What caused the high levels of lead? How can the lead be removed from the aquifer? (Grossman ...


    By IWA Publishing

  • Water resources and the potential of brackish groundwater extraction in Egypt: a review

    A review of water resources in Egypt indicates that Nile water is fully utilized and the available quantity could potentially decrease by approximately 19% due to proposed water usage by neighboring countries. Seawater desalination and groundwater extraction are the only options to increase Egypt's water supply. The extraction and desalination of brackish groundwater is suggested ...


    By IWA Publishing

  • Assessment of groundwater resources using climatic and hydrologic budget methods

    The Pageru River basin is situated in drought prone areas of the Rayalaseema region, Andhra Pradesh, South–India. In the absence of perennial surface water bodies, groundwater is an important source of water and has played an important role in developing industry, agricultural and domestic supply. In the present study, the efforts have been made to assess the groundwater resources using both ...


    By Inderscience Publishers

  • Potential impacts of climate change on groundwater resources – a global review

    Groundwater is a vital resource for sustaining life. Changes in the Earth's climate have the potential to affect both the quality and quantity of available groundwater, primarily through impacts on recharge, evapotranspiration and (indirectly) on pumpage and abstraction. Groundwater is a major contributor to streamflow in areas with relatively shallow water tables, so changes in groundwater ...


    By IWA Publishing

  • Modeling impacts of climate change and human activities on groundwater resources using MODFLOW

    This paper analyzes the impacts of climate change and human pressures on Yazd-Ardakan aquifer using the Hadley Centre Coupled Model, version 3 (HADCM3) circulation Model and A2 emission scenario. Water levels in the study aquifer were simulated using three-dimensional finite-difference groundwater model (MODFLOW 2000) with GMS 8.3 as pre- and postprocessing software. Input for ...


    By IWA Publishing

  • Performance of intermittent aeration reactor on NH4-N removal from groundwater resources

    To study the effect of intermittent aeration period on ammonium–nitrogen (NH4-N) removal from groundwater resources, synthetic groundwater was prepared and three reactors were operated under different conditions – “reactor A” under continuous aeration, “reactor B” under 6 h intermittent aeration, and “reactor C” under 2 h intermittent aeration. To facilitate denitrification simultaneously with ...


    By IWA Publishing

  • The importance of preferential flow in controlling groundwater recharge in tropical Africa and implications for modelling the impact of climate change on groundwater resources

    An improved water table fluctuation technique for estimating recharge is applied to a sustained (10-year) groundwater level monitoring record in Uganda, a rare dataset for tropical Africa, and compared against results from soil moisture balance models (SMBMs) and unsaturated flow models. The results show that recharge is directly proportional to rainfall (long-term average rainfall is around 1200 ...


    By IWA Publishing

  • Brackish Water as a Resource

    There’s a great deal of talk and debate about the value of treating brackish water, or water that is more saline than fresh water, but not quite as saline as seawater. Brackish water can result from the mixing of seawater with fresh water, as in surface waters such as estuaries or other watery ecosystems, or it can occur underground in aquifers. Salinity Levels Although ...


    By Fluence Corporation

  • Who Owns Groundwater?

    California’s drought underscores the need to improve how the state - and the rest of us - divvy up a resource in demand. Grapevines march across wires strung along rolling hills, their little trunks improbably supporting heavy black fruit. Cindy Steinbeck’s family has been farming this land since 1920. They grow Zinfandel, Viognier, Cabernet, Merlot, and Petite Syrah grapes but are ...


    By Ensia

  • Water resources management

    Managing regional or national water resources demands the integration of patterns and processes of both natural and social systems. This is essential to achieve the optimum interaction of man and nature since every aspect of water use and disposal impinges on ecosystems to a greater or lesser extent. Sustainability is the key issue: how can sustainable yields by abstraction from rivers, ...


    By IWA Publishing

  • Brackish Water as a Resource

    There’s a great deal of talk and debate about the value of treating brackish water, or water that is more saline than fresh water, but not quite as saline as seawater. Brackish water can result from the mixing of seawater with fresh water, as in surface waters such as estuaries or other watery ecosystems, or it can occur underground in aquifers. ...


    By Fluence Corporation

  • Development of a coupled flow and solute transport modelling for Astaneh–Kouchesfahan groundwater resources, North of Iran

    Astaneh–Kouchesfahan Plain is an important source of groundwater in Northern Iran. In the study area, rational management of groundwater resources requires a precise evaluation of groundwater flow and transport components. For this purpose, a 2–dimentional groundwater flow and solute transport model was developed and calibrated using PMWIN 5.3. Simulation results under ...


    By Inderscience Publishers

  • Towards an effective protection of groundwater resources: putting policy into practice with the drinking water protection file

    Groundwater in the Netherlands is a major resource for drinking water. As such it must be carefully monitored and managed. Evaluation of the European Water Framework Directive (EU-WFD) showed that protection of this valuable resource needs improvement. The Drinking Water Protection File identifies necessary measures needed per water abstraction site. The Protection File is part of the Dutch ...


    By IWA Publishing

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you