geological modeling Articles

  • Quantitative Analysis of Geological Samples- X-Calibur

    Abstract Quantitative and qualitative analysis of geological samples (rocks and river sediments) was performed on Xenemetrix EDXRF Benchtop Spectrometer System, model X-Calibur  Objective: Perform XRF measurements on certified geological reference materials to build calibration curves for the major oxides (Na2O, MgO, SiO2, Al2O3, SiO2, P2O5, ...


    By Xenemetrix Ltd.

  • Questioning the applicability of the areal leakage factor as a constant hydro-geological parameter

    The differential equation of the flow through a leaky aquifer considers the leakage factor a constant hydro-geological parameter. The purpose of this research paper is to examine the suitability of this constant for the simulation of the distribution of the piezometric heads through leaky aquifers. To perform this task, a proposed explicit finite difference scheme for the determination of the ...


    By Inderscience Publishers

  • Safety/risk assessment methodologies of deep geological facilities: results from a cross–national comparison

    Any geological disposal/storage facility must prove its safe performance prior to licensing, regardless of whether the compound is solid radioactive waste (RW) or gaseous carbon dioxide (CO2). The disposal/storage facility is considered safe if it meets the relevant safety standards and proves its reliable safe performance over defined timescales. This paper presents a ...


    By Inderscience Publishers

  • Progress on water data integration and distribution: a summary of select US Geological Survey data systems

    Critical water-resources issues ranging from flood response to water scarcity make access to integrated water information, services, tools, and models essential. Since 1995 when the first water data web pages went online, the US Geological Survey has been at the forefront of water data distribution and integration. Today, real-time and historical streamflow observations are available via web ...


    By IWA Publishing

  • The hidden benefits of maturity modelling

    Most 1–D modelling studies are carried out with the explicit objective of calculating maturity and hydrocarbon generation. This focus on bottom–line output has caused most modellers to overlook a major additional value of such studies: the knowledge acquired while building internally consistent geologic models. During model construction one should carefully consider the following factors: events ...


    By Inderscience Publishers

  • Application of Advanced Modelling Tools to Evaluate Uncertainty in Modelling Predictions

    With any modelling prediction there is a degree of uncertainty that corresponds to the uncertainty in defining hydraulic and chemical parameters spatially throughout the model domain. With geologic investigations we must interpolate between point information (borehole logs) to define continuous spatial properties through the model area. In addition, many parameters such as effective porosity and ...


  • Metal Mixture Modeling Evaluation project: 2. Comparison of four modeling approaches

    As part of the Metal Mixture Modeling Evaluation (MMME) project, models were developed by the National Institute of Advanced Industrial Science and Technology (Japan), the U.S. Geological Survey (USA), HDR׀HydroQual, Inc. (USA), and the Centre for Ecology and Hydrology (UK) to address the effects of metal mixtures on biological responses of aquatic organisms. A comparison of the 4 models, as ...


    By John Wiley & Sons, Ltd.

  • Method and technique of 3–D dynamic structural evolution modelling of fault basin

    The important and difficult point in the 3–D basin structural evolution modelling is how to make the modelling conform to the real geological process. In this paper, the rectification of formation boundary deformation is implemented by 3–D flexural slip mechanism and shearing mechanism. In compaction correction, by taking account of the phase boundary and diagenetic effect on porosity, a formwork ...


    By Inderscience Publishers

  • Modeling Leachate Contamination and Remediation of Groundwater at a Landfill Site

    Leachate contamination of an aquifer from a landfill sitewas simulated using the groundwater flow and transport model SUTRA developed by the U.S. Geological Survey. The model calibration was performed by spatially adjusting the hydraulic conductivity in order to capture the measured hydraulic head spatial variation and then by adjusting the dispersivity and porosity match the measured chloride ...


    By Springer

  • Modelling of coastal hydrogeology of Krishna delta in India

    Numerical techniques are widely used for modelling groundwater aquifers. Hydrological models are generally concept based and highly non-linear due to complex parameterisation as compared to models of other disciplines. Calibration and validation of such models cannot follow conventional methods borrowed from other disciplines many times due to scale of the model domain. In the present paper, ...


    By Inderscience Publishers

  • 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

  • Domain Modeling has been improved in Minestis 2016.2 new release

    Domain Modeling in the latest version 2016.2 of Minestis, has been improved to increase software performances and facilitate parameter settings. Minestis 2016.2 has been released in November 2016. Smart selection of control points Minestis domain modeling algorithm uses a combination of hard ...


    By Geovariances

  • Researchers: Current global groundwater recharge models inaccurate

    A large-scale analysis of existing water resource models used around the world has found some key processes are missing, which means estimates of water availability could be wrong and cannot be reliably used for making water management decisions. The international team of scientists found that important climate change impact models are wrong in some areas. One finding was that groundwater ...


    By Fluence Corporation

  • Optimal solute transport in heterogeneous aquifer: coupled inverse modelling

    Characterisation of transmissivity heterogeneity is critical for groundwater flow and solute transport. The heterogeneity of transmissivity is studied through variogram-based techniques. Conventionally, the parameters in variogram are obtained by fitting measurements to a theoretical variogram. However, conditioning to the sampled geological variables neglects the effects of observed ...


    By Inderscience Publishers

  • Assessing the human-environment relationship: a complex-systems methodology to modelling climate change

    Climate change is at the forefront of scientific investigation and socio-political decision-making. The world community of scientists concur with the fact that human activities are both contributing to and affected by changes in the environment that influence the overall well-being of the world population. Importantly, these changes do not discriminate as to region or inhabitants. The body of ...


    By Inderscience Publishers

  • Modelling spatio-temporal heterogeneities in groundwater quality in Ghana: a multivariate chemometric approach

    Chemometric techniques were applied to evaluate the spatial and temporal heterogeneities in groundwater quality data for approximately 740 goldmining and agriculture-intensive locations in Ghana. The strongest linear and monotonic relationships occurred between Mn and Fe. Sixty-nine per cent of total variance in the dataset was explained by four variance factors: physicochemical properties, ...


    By IWA Publishing

  • Nonpoint-source nitrogen and phosphorus behavior and modeling in cold climate: a review

    Pollution from nonpoint-source (NPS) nitrogen (N) and phosphorus (P) are the main causes of eutrophication in lotic, lentic and coastal systems. The climate of cold regions might play an important role in disturbing environmental behavior of NPS N and P, influencing simulation of watershed scale hydrologic and nonpoint-source pollution models. The losses of NPS N and P increase in regions of cold ...


    By IWA Publishing

  • Assessment of uncertainty in discrete fracture network modeling using probabilistic distribution method

    There have been widespread concerns about solute transport problems in fractured media, e.g. the disposal of high-level radioactive waste in geological fractured rocks. Numerical simulation of particle tracking is gradually being employed to address these issues. Traditional predictions of radioactive waste transport using discrete fracture network (DFN) models often consider one particular ...


    By IWA Publishing

  • What’s the Temperature? Thermal Modeling and its Importance in Thermal Remediation

    What is a model? A beautiful person who struts down a run way, a scaled down sculpture of the Empire State Building, or a series of equations that describe some phenomenon? Did you guess all of the above? Gold star! Models come in many different shapes and sizes. In the environmental consulting and remediation industry, the word “model” often refers to a numerical model. Numerical ...


    By TerraTherm, Inc.

  • Groundwater flow modeling to support water management scenarios – the Bekaa Valley, Lebanon

    The Italian Ministry of Foreign Affairs funded a project aimed at developing tools for water management in the Bekaa valley, Lebanon. The Lebanese Ministry of Energy and Water implemented the project, supported by the University of Milan Department of Agricultural and Environmental Sciences (DISAA). The geologic framework consists of a cretacean-eocean carbonatic structure, crossed by a fracture ...


    By Tethys srl

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