Wave and Tidal Monitoring Articles

  • Optimized Pipediver Platform Making Waves As Advanced Condition Assessment Tool For Metallic Pipes

    Pure Technologies (Pure) never says no to an engineering challenge. If a client has a particular pipeline assessment or monitoring challenge to overcome in order to make a rehabilitation decision, we’ll do whatever it takes to help ...


    By Pure Technologies

  • Analyzing the turbulent flow on steep open channels

    In channels with steep slopes, the flow is supercritical and the formation of roll waves is expected. In order to evaluate the flow behaviors in steep open channels, the Azad dam spillway is simulated numerically and its flow characteristics are compared with the physical model tests. In this study, the hydraulic variables including hydraulic depth and water surface profile are studied along ...


    By IWA Publishing

  • Port of London Authority Tidal Monitoring System - POLATIDE 5: High Level - Case Study

    Background: Valeport recently worked with marine data specialists, Oceanwise, to design and deliver a complete tidal monitoring system for the Port of London Authority (POLA), please read on to find out more about the system referred to as ‘POLATIDE 5’. Introduction: Valeport and OceanWise ...


    By Valeport Ltd

  • Helplessly exposed to nature? How lightning storms can be measured

    Each day, there occur about 1,000 thunderstorms with 4-10 million lightning bolts worldwide. In average, 700 people per year are hit by such light discharges, of which 75% of the hits result in long-term damages. Between three and seven cases end fatal. The risk is particularly high in the open field and is fortunately decreasing. The reason for this is that we stay more often inside in cars and ...

  • ANFIS and ANN models for the estimation of wind and wave-induced current velocities at Joeutsu-Ogata coast

    In this study, the adaptive network-based fuzzy inference system (ANFIS) and artificial neural network (ANN) were employed to estimate the wind- and wave-induced coastal current velocities. The collected data at the Joeutsu-Ogata coast of the Japan Sea were used to develop the models. In the models, significant wave height, wave period, wind direction, water depth, incident wave angle, and ...


    By IWA Publishing

  • Can software save salt marshes?

    Computer models that help oceanside cities plan for their future also hold hope for a threatened coastal ecosystem. It’s a mild and sunny summer day on the tidal salt marshes at Barn Island Wildlife Management Area, which sits across Little Narragansett bay from ...


    By Ensia

  • Three Best Ways to Utilize Technology in EHS

    Big or small, there’s no doubt that technology affects and challenges the way your business operates more and more every day.  So what separates the strong from the weak?  Success from failure? Throwing it back to ancient Greece, philosopher Heraclitus said, “All is flux, nothing stays still – there is nothing permanent except change.” Evolve, adapt, progress, ...


    By Intelex Technologies Inc.

  • Three Best Ways to Utilize Technology in EHS

    Big or small, there’s no doubt that technology affects and challenges the way your business operates more and more every day.  So what separates the strong from the weak?  Success from failure? Throwing it back to ancient Greece, philosopher Heraclitus said, “All is flux, nothing stays still – there is nothing permanent except change.” Evolve, adapt, progress, ...


    By Intelex Technologies Inc.

  • Detection of inter-coil short circuits in coils of salient pole synchronous generator field winding on the basis of analysis of magnetic field in the machine

    Abstract This paper deals with detection of inter-coil short circuits in coils of the salient poles synchronous generator excitement winding on the basis of the analysis of the magnetic field in the machine. Applying FEM to the generator model, magnetic field wave forms in the machine, on the points of interests, under both, faultless and faulty conditions were calculated. ...

  • Port of London Authority Tidal Monitoring System - POLATIDE 5: Detailed - Case Study

    Introduction: Valeport and OceanWise have designed and delivered a complete tidal monitoring system, including tide gauges, telemetry equipment, servers, databases, system control, data management and display software, to the Port of London Authority. The system was installed in October 2013 and rigorous testing completed in February 2014.  Background: ...


    By Valeport Ltd

  • Case Study: Liz Bagshaw on the IRC sensors

    Our infrared IR’C sensors have been making waves in the world of glacial meltwater monitoring. Glacial environments are key indicators of global warming and climate change. They’re also home to a diverse range of microorganisms. Both of these need to be quantified and monitored, but doing this isn’t easy because of the cold, remote environments in which they are found. To combat ...


    By Partech (Electronics) Ltd.

  • Efficient joint probability analysis of flood risk

    Flood attributes such as the water level may depend on multiple forcing variables that arise from common meteorological conditions. To correctly estimate flood risk in these situations, it is necessary to account for the joint probability distribution of all the relevant forcing variables. An example of a joint probability approach is the design variable method, which focuses on the extremes of ...


    By IWA Publishing

  • Case Study Port of Hamburg/Germany

    LOG_aLevel Storm Tide Network at the Port of Hamburg, Germany Since 2003 a Storm Tide Network from General Acoustics GmbH (GA) has been satisfactory operating at the Port of Hamburg. In a first test phase of two years a LOG_aLevel station was successfully tested by the Hamburg Port Authority (HPA) against its conventional gauges. Due to the good results in terms of accuracy and ...


    By General Acoustics e.K.

  • Summertime conditions of a muddy estuarine environment: the EsCoSed project contribution

    As part of the Estuarine Cohesive Sediments (EsCoSed) project, a field experiment was performed in a highly engineered environment, acting as a natural laboratory, to study the physico-chemical properties of estuarine sediments and the associated hydro-morphodynamics during different seasons. The present contribution focuses on the results obtained from the summertime monitoring of the most ...


    By IWA Publishing

  • 2014 JRC Ocean Energy Status Report

    Abstract Oceans and seas have the potential to play a significant role in providing clean energy. Different technologies are currently being developed to ensure a long term contribution of ocean energy to the future energy system. Among the different ocean energy technologies, tidal and wave conversion systems are expected to contribute the most to the European energy system in the short ...

  • Detection of inter-coil short circuits in Synchronous Machine armature winding on the basis of analysis of machine magnetic field

    Abstract This paper deals with detection of inter-coil short circuits in the synchronous machine armature winding, for the machines having the armature winding with coils, based on the analysis of the magnetic field present in the machine. Applying FEM (finite element method) to the generator model, magnetic field wave forms in the machine have been calculated for every point ...

  • Soil erosion in the riparian zone of the Three Gorges Reservoir, China

    The riparian zone of the Three Gorges Reservoir (TGR) has experienced substantial erosion that may severely deteriorate the reservoir ecosystem. To calculate soil erosion characteristics, field investigations have been conducted in the TGR area and 12 erosion-monitoring transects have been set in the middle TGR. The results showed that the dominating drive forces are water wave, gravity and ...


    By IWA Publishing

  • Study on hydrodynamics and heat transfer of solitary wave on film flow with CFD method

    In this paper, a capacitance probe and high speed camera are adopted to study the solitary wave of falling film on large flat plate experimentally. Two types of solitary wave are studied with a Computational Fluid Dynamic (CFD) method based on the measuring data. The water–air shear stress on the interface of the solitary wave is modelled in the numerical calculation. The results indicate that ...


    By Inderscience Publishers

  • Levelogger Edge Data Verified in Harsh Conditions of Antarctic Tidal Study

    From April 2013, through December 2013, a Levelogger Edge was used in an Antarctic Tidal Study to monitor sea level fluctuations in the Davis Sea, Antarctica. A unique monitoring setup was implemented for the successful installation of the Levelogger Edge in these extreme climatic ...


    By Solinst Canada Ltd.

  • Comparison of Directional WaveGuide Radar with Directional WaveRider Buoy

    Abstract Down looking FMCW radars for measuring water level, tides and wave height have been in use for 25 years. A combination of three down looking FMCW radars, mounted on an o↵ shore location, can be used to accurately measure ocean wave height and wave direction. At locations where an o↵shore mounting construction is readily available, the major advantage of this relatively ...


    By Radac BV

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