geo-environmental modeling Articles

  • Moderator shares how upcoming conference will foster development of new technologies in fractured rock

    Ken Goldstein, CGWP, will moderate a session titled “High-Resolution Characterization in Fractured Rock” at the upcoming 2017 NGWA Conference on Fractured Rock and Groundwater, October 2-3 in Burlington, Vermont. Goldstein is senior vice president, water and environmental systems at Louis Berger. He recently ...

  • Illinois Utilities Begin to Design Community Solar Programs Under New Energy Law

    Illinois utilities and regulators are putting into motion plans for community solar programs under the state’s Future Energy Jobs Act that passed last year. In filings with the Illinois Commerce Commission (ICC) last month, ComEd outlined proposed terms and conditions for “Community Supply,” also referred to as community solar. Ameren Illinois has also ...


    By Cleantech Law Partners

  • Area monitoring of specific ppb-level constituents utilizing process gas chromatography

    ABSTRACT In most of the industrialized countries worldwide, increasingly stringent environmental regulations require the continuous reduction of a wide range of emission sources and components. Despite local variations concerning concentrations, absolute emission quantity, target priorities and timetables, regulations typically require active compliance and proof thereof. The impact of ...

  • Geo Drilling International: Hands-On

    Boart Longyear has launched a core-orientation system made for drillers, by drillers Although critical for mapping exploration and minesite development, core orientation is part of the drilling process that has experienced only incremental product improvements through small changes to the process and equipment. Boart Longyear has now introduced TruCore, a first-inindustry integrated ...


    By Boart Longyear Inc.

  • Environmental modelling for blue collars

    Model complexity and the ‘breakpoint of diminishing returns’; ‘physical’ vs. ‘conceptual’ modelling; the relevance and limits of the heuristic solutions; screening vs. analytical modelling; perceptions of uncertainties, calibration and sensitivity analysis; and the ‘ethics in modelling’ – are only a few issues outstanding in the volatile philosophy of the environmental modelling. Glossing on ...


    By Inderscience Publishers

  • Comparison of linear and non-linear models for the adsorption of fluoride onto geo-material: limonite

    The three widely used isotherms Langmuir, Freundlich and Temkin were examined in an experiment using fluoride (F−) ion adsorption on a geo-material (limonite) at four different temperatures by linear and non-linear models. Comparison of linear and non-linear regression models were given in selecting the optimum isotherm for the experimental results. The coefficient of determination, r2, ...


    By IWA Publishing

  • A geo-referenced modeling environment for ecosystem risk Assessment: Organophosphate pesticides in an agriculturally dominated watershed

    Received for publication May 5, 2008. A geo-referenced modeling system was developed in this study to investigate the spatiotemporal variability of pesticide distributions and associated ecosystem risks. In the modeling system, pesticide fate and transport processes in soil-canopy system were simulated at field scale by the pesticide root zone model (PRZM). Edge-of-field mass fluxes were ...

  • Relating geo–meteorological parameters to global solar radiation for Egypt by Iranna–Bapat's estimation models

    Estimation of solar radiation is considered as the most important parameter for the design and development of various solar energy systems. But, the availability of the required data is very scarce and often not readily accessible. The foremost objective of the present study was to estimate the monthly average global solar radiation (GSR) at various locations for Egypt, by the generalised ...


    By Inderscience Publishers

  • Modelling trade and environmental linkages in China

    Interactions between trade and the environment have been studied extensively as a reaction to the pressure that the accelerated pace of globalisation has placed on environment and trade. Distinguishing itself from previous work, this study focuses on a modelling analysis of the interactions between trade and the environment in China. A non-linear simultaneous equation trade and environment model ...


    By Inderscience Publishers

  • On the formulation of environmental fugacity models and their numerical solutions

    Multimedia models based on chemical fugacity, solved numerically, play an important role in investigating and quantifying the environmental fate of chemicals such as persistent organic pollutants (POPs). These models have been utilised extensively in the study of the local and global distribution of chemicals in the environment. This paper describes potential sources of error that may arise ...


    By John Wiley & Sons, Ltd.

  • Regulatory models for environmental impact assessments in Hungary

    This paper describes the methodology and input requirements of environmental impact assessments regulated in Hungary by national standards for more than 10 years. The main characteristics are (a) various models simulate the impact of point, multi-source, line and area sources on local, urban and regional scales, (b) design transmission matrices are readily available for the greater part of the ...


    By Inderscience Publishers

  • Models of energy saving systems: the battlefield of environmental planning

    Traditionally, energy planning has been interpreted as planning for an appropriate energy supply system, based on a crude prognosis for the energy demand. Over the past couple of decades, however, the immense possibilities of regulating energy demand - and the benefits of doing it - have become increasingly recognised and also partly included in the planning. This paper first describes some ...


    By Inderscience Publishers

  • Improved environmental multimedia modeling and its sensitivity analysis

    Modeling of multimedia environmental issues is extremely complex due to the intricacy of the systems with the consideration of many factors. In this study, an improved environmental multimedia modeling is developed and a number of testing problems related to it are examined and compared with each other with standard numerical and analytical methodologies. The results indicate the flux output of ...


    By IWA Publishing

  • Atmospheric environmental impact assessment modelling in France

    The most widely accepted model of atmospheric dispersion for impact assessment in France is the Gaussian model of Doury. The Centre d'Etudes Atomiques (CEA) and Electricite de France (EDF) have developed their own software systems, which include several compatible or nested meteorological, trajectory, and dispersion codes. These systems are fitted to the various atmospheric scales from regional ...


    By Inderscience Publishers

  • Review of the requirements for models and model applications

    Requirements for models and model applications are reviewed on basis of the Dobris Assessment report and the practice in EU legislation and international organisations, and from the responses of a questionnaire sent to 38 European countries. Model applications are frequently used for regulatory and general assessment purposes by various users (scientists, air quality managers, policy-makers). ...


    By Inderscience Publishers

  • Endogenous technology and environmental quality in economic models

    The debate on the relationship between the economy and the environment focuses on the question whether there is a trade-off between economic growth and environmental quality. In order to enable a quantification of this essentially empirical question, it is necessary to integrate the environment into economic models. This article considers the integration of the environment in models of economic ...


    By Inderscience Publishers

  • Understanding QSPR uncertainty in environmental fate modeling

    In cases where experimental data on chemical‐specific input parameters are lacking, chemical regulations allow the use of alternatives to testing, such as in silico predictions based on quantitative structure‐property relationships (QSPRs). Such predictions are often given as point estimates; however, little is known about to what extent uncertainties associated with QSPR predictions contribute ...


    By John Wiley & Sons, Ltd.

  • Community modeling systems: classification and relevance to hydrologic modeling

    Numerical modeling in the water sciences has been shifting from developing single or specific purpose-oriented tightly intertwined model applications to integrated model systems addressing more complex and interlinked geo-physical, -chemical and -biological processes across all strata of the critical zone geo-volume. This is a response to a number of important issues that span from preservation ...


    By IWA Publishing

  • Remote monitoring of groundwater pollution using geo-electric techniques in undulating sandy terrain, Western Australia

    Early-time transient electromagnetic sounding (TEM) and DC resistivity sounding techniques have been used to monitor remotely the changes with time of a groundwater pollution plume at a test site on a sand aquifer. A range of techniques for interpretation of TEM sounding data have been evaluated. All of these were successful in identifying expansion of the plume. The most plausible interpretation ...


    By Inderscience Publishers

  • Open Pit Modeling

    The Problem Open pits are a common method of mining in the world. The design of such pits requires the application of technologies from a number of fields. One of the common scenarios is that the bottom of the pit may possibly extend beneath the water table of the surrounding geo-strata. If this is the case then a suitable set of pumping wells must be designed in order to ensure that ...


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