tide measuring Articles

  • Shifting baselines in the Tijuana tide

    So last week I'm watching my oldest grom Israel (13) surf with Zach Plopper on the south side of the Imperial Beach pier. The surf is 2-4' with a south wind and sort of fun in a sloppy new south swell high tide sort of way. But then I smell it and see it--the infamous IB sewage plume. Not just a winter problem anymore--south wind and smell blows in sewage from the outfall pipe on the border and ...


    By WiLDCOAST

  • The rising tide of shareholder activism

    In this article, IRRC's Meg Voorhes examines the recent growth in shareholder advocacy, as evidenced by both the number and range of shareholder resolutions proposed at corporate AGMs, with a particular focus on how institutional investors are dealing with proposals that ask companies to respond to climate change issues or report on sustainability. By any measure, shareholder activism has grown ...


    By AHC Group

  • The rising tide of environmental refugees

    Our early twenty-first century civilization is being squeezed between advancing deserts and rising seas. Measured by the biologically productive land area that can support human habitation, the earth is shrinking. Mounting population densities, once generated solely by population growth, are now also fueled by the relentless advance of deserts and may soon be affected by the projected rise in sea ...


    By Earth Policy Institute

  • Turning back the tide - Remaking the EPA

    Stressing the importance of scientific integrity and transparency, EPA Administrator Lisa P. Jackson last month called for key changes to the process for reviewing National Ambient Air Quality Standards (NAAQS) to protect human health and the environment. 'It’s essential that the best science and the greatest transparency inform air quality standards that prevent illness and save lives,' said ...


    By GLOBE SERIES

  • The corruption factor: how public sector employees influence the tide

    Since sources of corruption stem from, but are not limited to, the lack of transparency and accountability in the public sector, this paper sets out to examine if there is a connection between a nation's personal disposable income levels for public employees, when measured by higher personal income tax rates and lower real wage rates, and the level of public corruption found in these countries. ...


    By Inderscience Publishers

  • Radar measurement in the North Sea

    Background / Task The NLWKN operates the barrier in the inland waterway of the river Ems. They are working with a dense monitoringnetwork which is required e.g. for the preservation of evidence in case of blocks for the protection against storm tides or if the water depth has to be increased to make the Ems navigable for big vessels coming from the dockyard. After an average a new radar ...


    By OTT HydroMet

  • Daily measures of microbes and human health at a non-point source marine beach

    Studies evaluating the relationship between microbes and human health at non-point source beaches are necessary for establishing criteria which would protect public health while minimizing economic burdens. The objective of this study was to evaluate water quality and daily cumulative health effects (gastrointestinal, skin, and respiratory illnesses) for bathers at a non-point source subtropical ...


    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.

  • Riding the Tide of Global and European Environmental Regulations - Best Practices of Global Companies Responding to Global and European Environmental Regulations

    Abstract This paper presents best practices of global companies on how they monitor, measure, respond and manage risks arising from global and European environmental regulations. This paper will begin with a review of the development and trends of international and European environmental regulations that have had an impact on production and international trade between 2000 and 2005. It will ...

  • Case Study Norderney LOG_aLevel_ENG

    Northsea Wave and Level Measuring Station In the operation of the research centre coast of the NLWKN–Norden-Norderney Apart from the coastal engineering, the coastal surveying and morphology, the storm tide warning service of the NLWKN-Norden-Norderney belong to the specific questions and tasks of the coastal area. The German Wadden Sea and ...


    By General Acoustics e.K.

  • Atoll Lagoon Flushing Forced by Waves

    Abstract Water level and current measurements from two virtually enclosed South Pacific atolls, Manihiki and Rakahanga, support a new lagoon flushing mechanism which is driven by waves and modulated by the ocean tide for virtually enclosed atolls. This is evident because the lagoon water level remains above the ocean at all tidal phases (i.e., ruling out tidal flushing) and because the ...


    By In-Situ, Inc.

  • The Power of the Moon

    The influence the moon has on life on earth is disputed. However, during an assignment in Southeast Asia, vibration experts from Sulzer were able to clearly confirm that the moon can even affect pumps. With its broad expertise, the Sulzer team was able to solve an unusual case of vibration. Southeast Asia is a key exporter of LNG (liquefied natural gas) to global markets, and it is ...


    By Sulzer 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

  • Stevens equipment records historical information during tsunami - Case Study

    On the eve of the discontinuation of Stevens chart recorders, we are republishing the following article about the highest profile contribution that our products have made in their 116 year history. This article was originally published in the Stevens Water Monitor newsletter in 2007. One of the longest lived products in water resource monitoring has been the Stevens’ chart recorder. In ...

  • A Multi-Sensor Piezometer for Shallow Marine Sediments in Coastal Environments

    A multi-sensor piezometer has been developed to measure dynamic excess and ambient pore pressures in shallow marine sediments under the effect of surface waves, tides, and currents. The probe consists of a shaft (1.5 m long with five porous stones at subseafloor depths ranging from 0.10 to 0.93 m) and two upper chambers (one that is hermetically sealed for the transducer electronics and another ...


    By ASTM International

  • Monitoring network for Scottish ports - Case Studies

    Historically, ferry masters operating off the west coast of Scotland would have to sail to a port and on arrival visually assess the weather and tide conditions before deciding whether safe berthing alongside the pier or quayside would be possible. This wastes time and fuel, and can causes immense frustration among passengers, who may see ferries come close to a port, but thereafter depart ...


    By OTT HydroMet

  • Development of a water quality tank model classified by land use for nitrogen load reduction scenarios

    The Ariake Sea, a typical semi-closed bay located in Kyushu Island, western Japan, has a maximum tidal range of 6 m in spring tide, and its vast tidal flats are composed of both sandy bottom areas and muddy bottom areas. In this study, two-dimensional depth-averaged finite difference numerical models have been developed for predicting the tidal flow velocity and suspended sediment concentration ...


    By Springer

  • Numerical prediction of suspended sediment concentrations in the Ariake Sea, Japan, using a time-dependent sediment resuspension and deposition model

    The Ariake Sea, a typical semi-closed bay located in Kyushu Island, western Japan, has a maximum tidal range of 6 m in spring tide, and its vast tidal flats are composed of both sandy bottom areas and muddy bottom areas. In this study, two-dimensional depth-averaged finite difference numerical models have been developed for predicting the tidal flow velocity and suspended sediment concentration ...


    By Springer

  • Water quality simulation of sewage impacts on the west coast of Mumbai, India

    Most coastal cities use the ocean as a site of waste disposal where pollutant loading degrades the quality of coastal waters. Presently, the west coast of Mumbai receives partially treated effluent from wastewater treatment facilities through ocean outfalls and discharges into creeks as well as wastewater/sewage from various open drains and nallahs which affect the water quality of creek and ...


    By IWA Publishing

  • Intercomparison of a WaveGuide radar and two Directional Waveriders

    Down-looking FMCW radars for wave measurements are in use already for 25 years. They have proved to be very robust and maintenance is hardly needed. Now the prices of FMCW radars came down they are being more widely applied for water level, tide, harbour oscillations and wave height at sea, lakes and rivers. Radacs WaveGuide was introduced in 1998 based upon a commercial tank radar, first Enrafs ...


    By Radac BV

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