river water analysis Articles

  • River water pollution in Indonesia: an input-output analysis

    Data from global environmental monitoring activities have shown alarming environmental conditions in many developing countries. Environmental policies that could improve the environment significantly, while at the same time maintaining the growth of economic activities are needed. Using an input-output analysis, this paper researches such policies with a view to applying them to Indonesia's river ...


    By Inderscience Publishers

  • Water & Rivers Commission

    The Water and Rivers Commission manages the water resources of Western Australia with an area of about 2.5 million square kilometres. The Information and Systems Group in the Hydrologic Measurement Support Section at the Water and Rivers Commission maintains data archives SWRIS (State Water Resources Information System) and Hydstra. SWRIS is used predominantly for the storage of water quality ...


    By KISTERS AG

  • Analysis of the net water loss in the main reach of the Yellow River

    In this study, several methods were employed to identify water losses in several reaches of the Yellow River. Then, a method for calculating the net water loss was developed. Also, annual, decadal and seasonal net water losses were analysed for the main reach of the Yellow River. Net evaporation, seepage and transmission per unit length of the river were estimated. The results showed that in the ...


    By Inderscience Publishers

  • Analysis of variation and relation of climate, hydrology and water quality in the lower Mekong River

    In order to determine the influence of climate and hydrology on water quality of the lower Mekong River, the long term monitoring data (from 1985 to 2004) of climatic, hydrological and water quality variables were analyzed. In general, water quality was ‘good’ or ‘very good’ for most of the investigated water quality parameters including DO, pH, conductivity, nitrate, phosphate and total ...


    By IWA Publishing

  • Error analysis for river water quality prediction using back propagation modelling

    The purpose of this research is to describe the errors of Back Propagation (BP) technique that could be applied in river water quality prediction. ANN was trained by using the upriver data to forecast the downriver quality in two approaches of long-distance forecasting and short-distance forecasting respectively. It showed that the predicted results from short-distance approach were more accurate ...


    By Inderscience Publishers

  • The Water Framework Directive final intercalibration register for lakes, rivers, coastal and transitional waters: overview and analysis of metadata

    By October 2004, the Final Intercalibration Register was successfully established following the procedure described in the Intercalibration guidance1 document agreed by the Water Directors in December 2002. In order to evaluate the consistency of the Register with the Water Framework Directive (WFD) provisions and the comparability of sites presented for intercalibration, the Joint Research ...


  • Spatio-temporal variation analysis of hydrochemical characteristics in the Luanhe River Basin, China

    The analysis of river pollution and assessment of spatial and temporal variation in hydrochemistry are essential to river water pollution control in the context of rapid economic growth and growing pollution threats in China. In this study, we focused on hydrochemical characteristics of the Luanhe River Basin (China) and evaluation of 12 hydrochemical variables obtained from 32 monitoring ...


    By IWA Publishing

  • Economic analysis of alternative pollution abatement policies: the case of Buriganga River, Bangladesh

    The Buriganga River is a prime example of serious surface water pollution problem. So far the emphasis of pollution abatement policy for this river has been solely on the application of command and control (CAC) mechanisms (standards on emission discharges), however little success has been achieved as the polluters seem to be reluctant to comply to these measures. This study evaluates the ...


    By Inderscience Publishers

  • Applying Monte Carlo and classification tree sensitivity analysis to the Zayandehrood River

    Water quality modeling is an important issue for both engineers and scientists. The QUAL2K model is a simulation tool that has been used widely for this purpose. Uncertainty and sensitivity analysis is a major step in water quality modeling. This article reports application of Monte Carlo analysis and classification tree sensitivity analysis in the modeling of the Zayandehrood River. First the ...


    By IWA Publishing

  • Application of SWOT analysis for the management of transboundary River Evros (Bulgaria, Greece, Turkey)

    River Evros is a transboundary river flowing through Bulgaria, Greece and Turkey and coincides with the borderline among them for a considerable part of its length in the downstream part of its basin. River Evros is historically engaged to a long series of serious and devastating flood events with high socio–economical costs and environmental impacts on the riparian communities and even on ...


    By Inderscience Publishers

  • The influence of lagoon on neighboring rivers by water and sediment quality

    Canonical discriminant analysis (CDA) was applied in order to distinguish the water-quality and the sediment-quality parameters from neighboring rivers, and to recognize similarities of water and sediment properties between a lagoon and neighboring rivers. Two set of constructed discriminant functions showed a marked contribution to most of the discriminant variables. In water, the significant ...


    By IWA Publishing

  • Trend analysis of extreme runoff events in major river basins of Peninsular Malaysia

    This study performed trend analysis of extreme runoff events (high flow and seven–day low flow) of four major river basins located in Peninsular Malaysia in Southeast Asia. Trend analysis using Spearman's rank test and standard normal homogeneity test using 25 years (1982–2006) of runoff data found no statistically significant trend in extreme events of Kelantan and Pahang basins. ...


    By Inderscience Publishers

  • Assessment of River Water Quality in Northwestern Greece

    The effect of land use patterns on river water quality was studied in three different river basins located in Epirus, Northwestern Greece. Studies were conducted from October 2000 to {September} 2001. During this period, the parameters chemical oxygen demand (COD), biological oxygen demand (BOD), NO2–, NO3–, NH4+ and PO43– were measured, employing standard methods of analysis. The results were ...


    By Springer

  • Flow modeling and analysis of compound channel in river network with complex floodplains and groynes

    Presented here are flow simulations of a network of natural rivers flanked by one or two large and complex floodplains with impermeable groynes and bridge embankments using one- and quasi-two-dimensional dynamic flow models. The effects of the large floodplain storage capacity, momentum transfer interaction and apparent shear stress at the vertical interface between the main channel and ...


    By IWA Publishing

  • Water quality assessment of a polluted urban river

    Urban rivers in Latin America are heavily impacted by human activities that affect their functions and services. This paper shows the results of a water quality assessment for the Reconquista River, the second most polluted urban river in Argentina. They allowed the identification of the main processes of transport of pollutants and the prioritisation of different areas of the basin for ...


    By Inderscience Publishers

  • Review of spatial variations in water quality in the Gediz River

    The Gediz River is one of the most important and main water source for the Gediz Basin of the Aegean region and Turkey. In this study, 18 water samples were collected from the source to the end of the river. Change in water quality, some trace elements and heavy metal contents of the Gediz River were determined. Analysis of the Fe, Cu, Mn, Zn, Pb, Cr, Co, Cd and Ni showed that the quantity of Fe ...


    By Inderscience Publishers

  • Impact of IT on river modeling

    Background Models of river channels and river flows have been used to good effect for many years. HR Wallingford Group, in the UK, has been building physical models of rivers for nearly 60 years. Some years ago, it was predicted that physical modeling would soon cease to exist, to be entirely replaced by computer models. This has not happened - in fact, the demand for physical models is greater ...


    By Innovyze

  • A hydrodynamic water quality model for propagation of pollutants in rivers

    Numerical modelling can be a useful tool to assess a receiving water body's quality state. Indeed, the use of mathematical models in river water quality management has become a common practice to show the cause-effect relationship between emissions and water body quality and to design as well as assess the effectiveness of mitigation measures. In the present study, a hydrodynamic river water ...


    By IWA Publishing

  • Effect‐directed analysis of Elizabeth river pore water: Developmental toxicity in zebrafish (Danio rerio)

    In the present study, we used effect‐directed analysis (EDA) to identify teratogenic compounds in pore water collected from a Superfund site along the Elizabeth River (ER) estuary (Virginia, USA). Zebrafish (Danio rerio) exposed to the pore water show acute developmental toxicity and cardiac teratogenesis, presumably due to elevated sediment levels of polycyclic aromatic hydrocarbons (PAHs) ...


    By John Wiley & Sons, Ltd.

  • Sensitivity analysis using a diffuse pollution hydrologic model to assess factors affecting pesticide concentrations in river water

    We quantitatively evaluated the factors that affect the concentrations of rice-farming pesticides (an herbicide and a fungicide) in river water by a sensitivity analysis using a diffuse pollution hydrologic model. Pesticide degradation and adsorption in paddy soil affected concentrations of the herbicide pretilachlor but did not affect concentrations of the fungicide isoprothiolane. We attributed ...


    By IWA Publishing

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