hydrological engineering Articles

  • Reconciling hydrology with engineering

    Hydrology has played an important role in the birth of science. Yet practical hydrological knowledge, related to human needs for water storage, transfer and management, existed before the development of natural philosophy and science. In contemporary times, hydrology has had strong links with engineering as its development has been related to the needs of the design and management of water ...


    By IWA Publishing

  • Urban Hydrology

    The provision and disposal of water for urban populations is as old as the development of cities themselves. Unrestrained development has made the task ever more difficult and hydrologists and civil engineers face constant pressures to stay on top of the challenges of providing sufficient supplies and adequate treatment/disposal of effluents. Urban areas have long existed as centres of trade, ...


    By IWA Publishing

  • Water management solutions minimize flood damage

    Human societies around the world have used timber as a building material for thousands of years. As wood is the only significant biological building material we are naturally inclined to believe that using wood in construction is good for the environment. As a matter of fact the environmental benefits of using timber are not straightforward: although it is a natural product, a large amount of ...


    By Geoplast US Corp.

  • Improving calibration of two key parameters in Hydrologic Engineering Center hydrologic modelling system, and analysing the influence of initial loss on flood peak flows

    Parameter calibration is a key and difficult issue for a hydrological model. Taking the Jinjiang Xixi watershed of south-east China as the study area, we proposed methods to improve the calibration of two very sensitive parameters, Muskingum K and initial loss, in the Hydrologic Engineering Center hydrologic modelling system (HEC-HMS) model. Twenty-three rainstorm flood events occurring from ...


    By IWA Publishing

  • Evolutionary product unit based neural networks for hydrological time series analysis

    Artificial Neural Networks (ANNs) are now widely used in many areas of science, medicine, finance and engineering. Analysis and prediction of time series of hydrological/and meteorological data is one such application. Problems that still exist in the application of ANN's are the lack of transparency and the expertise needed for training. An evolutionary algorithm-based method to train a type of ...


    By IWA Publishing

  • Changes in benthic nutrient sources within a wetland after hydrologic reconnection

    Removing dams and levees to restore hydrologic connectivity and enhance ecosystem services such as nutrient removal has been an increasingly common management practice. In the present study, the authors assessed geochemical and biological changes following engineered levee breaches that reconnected eutrophic Upper Klamath Lake and Agency Lake, Oregon, USA, to an adjacent, historic wetland that ...


    By John Wiley & Sons, Ltd.

  • Comparing the capability of distributed and lumped hydrologic models for analyzing the effects of land use change

    Empirically based lumped hydrologic models have an extensive track record of use for various engineering applications. Physically based, multi-dimensional distributed models have also been in development and use for many years. Despite the availability of high resolution data, better computational resources and robust, numerical methods implemented in such models, their usage is still limited, ...


    By IWA Publishing

  • Downscaling technique uncertainty in assessing hydrological impact of climate change in the Upper Beles River Basin, Ethiopia

    We investigate the uncertainty associated with downscaling techniques in climate impact studies, using the Upper Beles River Basin (Upper Blue Nile) in Ethiopia as an example. The main aim of the study is to estimate the two sources of uncertainty in downscaling models: (1) epistemic uncertainty and (2) stochastic uncertainty due to inherent variability. The first aim was achieved by driving a ...


    By IWA Publishing

  • An updated hydrological review on recent advancements in soil conservation service-curve number technique

    Although many hydrologic models are available for the estimation of direct runoff from storm rainfall, most models are limited because of their intensive input data and calibration requirements. The Soil Conservation Service-Curve Number (SCS-CN) technique has been applied successfully throughout the entire spectrum of hydrology and water resources, even though originally it was not intended to ...


    By IWA Publishing

  • Tailings Cover Hydrology for the Central Manitoba Mine Site – Undergraduate Thesis for the University of British Columbia

    The hydrology of a proposed cover system, under varying drainage layer conditions, for a mine site rehabilitation project located in Southeastern Manitoba was analyzed with the SoilVision Systems Ltd., SVFlux software. The proposed 1 m thick engineered soil cover included a 0.2 m thick highly permeable basal granular drainage layer, which was replaced with a man-made synthetic ...


  • Get More Out of Water Resources Engineering Models

    by Venu Kandiah, PhD, P.E. Senior Water Resources Engineer The effort required to develop water resources engineering models can be significant. But once developed, in many instances the models are only evaluated for a limited, or a single set of conditions. The results and predictions obtained from these evaluations are the ones used in design, presented in reports and ...


    By XP Solutions

  • Get more out of Water Resources Engineering Models

    The effort required to develop water resources engineering models can be significant. But once developed, in many instances the models are only evaluated for a limited, or a single set of conditions. The results and predictions obtained from these evaluations are the ones used in design, presented in reports and conveyed to decision makers and the public. This approach might serve ...


    By XP Solutions

  • Nakoma Brook flood & hydraulic analysis & engineering study Sloatsburg, New York

    Performed Hydrologic Studies and Hydraulic Engineering Investigations and Designs for the Nakoma Brook Watershed located in Western Rockland and Southeastern Orange Counties, encompassing over 8 square miles. The study area focus was in the Village of Sloatsburg, NY at the intersection of Route 17 and Eagle Valley Road. Flood Control analyses were conducted using USACOE's HEC-1 and HEC-2 computer ...


    By GEA ENGINEERING

  • Estimation and monitoring non-point source pollutant loads: an object-oriented hydro-information approach

    Numerous hydrologic/water quality models of run-off and soil erosion have been coupled to Geographical Information System (GIS) to determine Non-Point Source (NPS) pollutants from watersheds. Hydrology and water-resource engineering rely on observations of environmental conditions and the accuracy of environmental data. This paper focuses on estimation and monitoring of NPS pollutant loads based ...


    By Inderscience Publishers

  • Assessing the impact of arid area urbanization on flash floods using GIS, remote sensing, and HEC-HMS rainfall–runoff modeling

    This study uses an integrated approach, bringing together geographic information system (GIS), remote sensing, and rainfall–runoff modeling, to assess the urbanization impact on flash floods in arid areas. Runoff modeling was carried out as a function of the catchment characteristics and the maximum daily rainfall parameters. Land-use types were extracted from the supervised classification of ...


    By IWA Publishing

  • Aral Sea partial restoration. II. Simulation of time-dependent processes

    Three operational scenarios produce water levels stabilised at 28.9, 27.2 and 25.7 m. A macro-engineering solution is considered. Increased runoff from Syr Darya and other freshwater sources raises the Aral Sea level by 1.4-3.5 m. Depending on the scenario, the Aral Sea returns to its 2005 elevation. Caspian Sea water importation, at flow rates of 14 km³/year leads to Aral Sea stabilisation at ...


    By Inderscience Publishers

  • Comparison between capabilities of HEC–RAS and MIKE11 hydraulic models in river flood risk modelling (a case study of Sungai Kayu Ara River basin, Malaysia)

    River flood risk map prediction is a combination of hydrological modelling, hydraulic modelling, river flood visualisation and river flood risk mapping. Two hydraulic models were applied in this research regarding their capabilities in river flood risk studies. These are MIKE11 developed by Danish Hydraulic Institute (DHI) and HEC–RAS4.0 by US Army Corps of Engineers. These two hydraulic models ...


    By Inderscience Publishers

  • Water Resources Management and Modeling

    Hydrology is the science that deals with the processes governing the depletion and replenishment of water resources of the earth's land areas. The purpose of this book is to put together recent developments on hydrology and water resources engineering. First section covers surface water modeling and second section deals with groundwater modeling. The aim of this book is to focus attention on the ...


    By IWA Publishing

  • Stochastic simulation of daily streamflow sequences using a hidden Markov model

    Estimation of daily streamflow time series is of paramount importance for the design and implementation of river engineering and management projects (e.g., restoration, sediment-transport modelling, hydropower). Traditionally, indirect approaches combining stochastic simulation of rainfall with hydrological rainfall–runoff models are used. However, these are limited by uncertainties in model ...


    By IWA Publishing

  • Feasibility study & master plan for water supply reservoir

    Client: North Central Missouri Regional Water Commission   Completion Date: 2003  Project Summary  Burns & McDonnell completed the feasibility study and master plan for a new water supply reservoir in Sullivan County, Mo. Sullivan County and other surrounding counties experienced severe drought conditions for several years and existing water ...


    By Burns & McDonnell

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