hydrographic survey Articles

  • Major Hydrographic Survey Using Valeport rapidSV Profiler - Case Study

    A major Hydrographic Survey in the Bering Sea off northwestern Alaska has just been successfully completed using the Teledyne/Oceanscience rapidCAST profiling system using the Valeport rapidSV profiler. As reported in Hydro-International recently (see full article), the ...


    By Valeport Ltd

  • Comparing influence of combinations of precipitation loss and rainfall excess-runoff transform models to flood flow rate in a flatland watershed

    Hydrologists can use many different precipitation loss rate functions and rainfall-excess transform techniques to develop watershed runoff hydrographs. For the most part, they can apply the loss and transform approaches in nearly any combination. To evaluate some of the many possible groupings, we formed a matrix of three commonly used precipitation loss rate models and three rainfall-excess ...


    By Inderscience Publishers

  • Explaining differential sources of zoonotic pathogens in intensively-farmed catchments using kinematic waves

    Surveys in streams draining intensively farmed catchments can, during flood events, indicate differential time-concentration patterns between a bacterial health-risk indicator (E. coli) and a major zoonotic pathogen that it seeks to indicate—Campylobacter. The indicator's peak concentration at a monitoring station can arrive ahead of the flood peak (the pollutograph ...


    By IWA Publishing

  • Reservoir inundation Modeling (RIM) using InfoWorks RS 2D

    MWH Soft’s InfoWorks RS 2D solution has been found to perform extremely well in an Environment Agency trial project to model and map the impacts of complex cumulative reservoir dam breaches. In England and Wales, the Environment Agency is the Competent Authority responsible for ensuring the safety of the 2092 reservoirs that currently fall under the Reservoirs Act 1975. In addition to this ...


    By Innovyze

  • InfoWorks RS underpins forensic analysis of the Boscastle flash flood

    The picturesque small town of Boscastle, on the North Cornwall coast, became a dramatic addition to the UK’s history of extreme flood events on 16 August 2004. On that day, an exceptionally prolonged and intense storm centered on Otterham, near the headwaters of Bodmin Moor, caused levels in its sea-bound exit routes - the river Valency, the Crackington stream, the river Neet and the river Ottery ...


    By Innovyze

  • New monitoring technology helps reveal Arctic secrets

    A group of Arctic researchers has employed the latest monitoring technology to investigate the effects of climate change, by measuring temperature and salinity in the water column beneath surface ice. The results of the investigation, which utilised YSI’s new 'Castaway-CTD', could cast new light on our understanding of the ways in which shifting ocean currents impact upon the climate in ...

  • Integrated InfoWorks CS modeling unravels the causes of complex Birmingham flooding

    Atkins Group has effectively modeled two trial catchments that highlight the potential of MWH Soft’s InfoWorks CS to improve understanding and communication of the issues and potential solutions for urban drainage. The consultancy is undertaking a landmark research project for UK Water Industry Research (UKWIR) on the effects of climate change on sewerage networks (see box below) and has ...


    By Innovyze

  • InfoWorks RS aids priority river flood modeling in New Zealand

    Project Background Innovyze’s InfoWorks RS has been the key software in helping to formulate flood risk reduction strategies throughout the Northland Region of New Zealand, an area of approximately 14,000 km2 on the northern tip of New Zealand’s North Island. The Northland Region has a predominately tropical climate. In recent years a number of tropical storms have ...


    By Innovyze

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