lake-surface monitoring Articles

  • High frequency monitoring needed to protect UK rivers - Case Study

    The science behind nutrient pollution in rivers is still poorly understood despite the fact that nitrate and phosphate concentrations in the UK’s rivers are mostly unacceptable, although an element of uncertainty exists about what an acceptable level actually is. Key to improving our understanding of the sources and impacts of nutrient pollution is high-resolution monitoring across a broad ...


    By OTT HydroMet

  • Case Report: ESM30 in lake monitoring

    Background Wuhan is the capital city of Hubei province in central China and has 166 lakes that cover 2,217 square km (856 square miles) and approximately 25% of the city.  This surface water coverage is one of the world’s highest.   The Wuhan Environmental Protection Bureau (WHEPB website: http://www.whepb.gov.cn) is responsible for monitoring the surface water ...


    By Oceanalpha Co., Ltd.

  • Surface Water Monitoring - Case Study

    Safe operation of a Water Treatment Plant (WTP) requires careful monitoring of the water supply influent to the plant, as a guard for any substances entering the treatment works that could negatively impact treated water quality in the distribution system. One aspect of water quality that has recently garnered more attention from authorities and utilities is Natural Organic Matter (NOM), which ...


    By MANTECH Inc.

  • Control and monitor Algae in a Lake - Case Study

    As part of the Clearwater PMPC project, 2 MPC Buoys were deployed in the Skrzyneckie Małe Lake to test the performance of this unique technology. The Challenge: Control and Monitor Toxic Algal Blooms The ClearWaterPMPC project was initiated by LG Sound and funded by "Research for SMEs" within the EU 7th Framework Programme. The goal of the ClearWaterPMPC (Predicting, ...


    By LG Sonic

  • Monitoring mixing dynamics in Toolik Lake, Alaska

    Toolik Lake is 130 miles south of Prudhoe Bay in northern Alaska. It is one of the main monitoring sites of the Arctic Long-Term Ecological Research (LTER) project and a site for studies led by Sally MacIntyre of the University of California investigating the linkages between hydrodynamics and ecosystem function. Both studies are funded by the U.S. National Science Foundation. It is classified as ...

  • Distribution of sterols and the sources of pollution in surface sediments of Ulungur lake, Xinjiang

    Domestic sewage discharged into lakes brings great pressure to the ecological environment. This study selected sediment from an inland lake as a research object to evaluate pollution of the environment. Eight sterols were used to evaluate the content of pollutants, while the ratios of sterols were used as the index to analyze the sources of pollution. The correlations were analyzed between ...


    By IWA Publishing

  • Surface/bathing water monitoring (Denmark) - Case Study

    In order to find the possible fecal sources to the sporadic high concentrations of bacteria, the municipality of Hjørring (DK) has set up a BACTcontrol in the ditch to monitor the E.coli levels. For this purpose the BACTcontrol is built into a movable trailer and powered by solar panels. This allows the BACTcontrol to run continuously (6 samples per day) for 7-14 days depending on the ...

  • Monitoring of regional lake water clarity using Landsat imagery

    The application of remote sensing technology to water quality monitoring has special significance for lake management at regional scale. Water clarity expressed in terms of Secchi disk transparency (SDT) is a highly useful indicator of trophic status and ecosystem health. In this study, we related Landsat TM and ETM+ data with ground observations to develop a model for the estimation of SDT ...


    By IWA Publishing

  • Application of dynamic threshold in sea and lake ice mapping and monitoring

    Ice detection and monitoring algorithms using visible and infrared images are generally founded on thresholds-based approaches. Classification of features over ice covered sea requires a series of reliable thresholds. The change in surface conditions throughout the season affects these thresholds and makes their adjustment necessary. This study proposes an operational method based on a set of ...


    By Inderscience Publishers

  • Case study - Monitoring of pollution in the surface water in urban area

    Project reference Project: Pilot project in Umeå County Customer: Umeå County, Sweden Project period 2004 Nature of task: time integrated monitoring of PCBs, PAHs, OCPs, Toxicity and metals in three streams in Umeå city area. ...


    By Exposmeter AB

  • Monitoring, environmental emergencies management and water treatment improvement of freshwater lakes in China: the Chao Lake case study

    Severe eutrophication of freshwater lakes, with the subsequent risk of algal blooms, has a critical effect on the safety of drinking water supplies in China and is one of the main environmental emergencies in the country. This paper focuses on Chao Lake, a large, shallow eutrophic lake used as a source of drinking water. The study considers the possibilities of improving the lake monitoring ...


    By IWA Publishing

  • Monitored natural recovery of PCB-contaminated sediments at the Lake Hartwell Superfund site

    A series of three articles describing a study evaluating the natural recovery of surface sediments contaminated with polychlorinated biphenyls (PCBs) at the Sangamo-Weston/Twelvemile Creek/Lake Hartwell Superfund Site in Pickens County, South ...


    By ENVIRON

  • Air monitoring of persistent organic pollutants in the Great Lakes: IADN vs. AEOLOS

    When designing a monitoring campaign, one has to consider many factors in the decision to perform a long-term synoptic monitoring program or a short-term intensive study. Each has its own advantages and disadvantages. This paper compares and contrasts the information obtained from two studies conducted on the Laurentian Great Lakes. One, the Integrated Atmospheric Deposition Network (IADN), is a ...


    By Springer

  • Case study - Water quality monitoring and weather data at Pampulha Lake-Brasil

    In 2010, OTT Hydromet's partner in Brasil,  Hexis began working with CETEC. This resulted in the installation of a buoy, equipped with an automatic profiling system, in early 2013. The project’s objective is the continuous monitoring of the lake’s water quality, with focus on improving this by the 2014 World Cup Games.  Adcon, Lufft and OTT technologies (Hydrolab DS5X ...


    By OTT HydroMet

  • Using PRTR database for the assessment of surface water risk and improvement of monitoring in Japan

    In April 2003, the first PRTR (Pollutant Release and Transfer Register) was published in Japan. It is shown how the PRTR can be used to improve environmental risk assessment with the objective of reducing risk to ecosystem integrity and human health. By examining the superposition of all chemical releases into rivers, high levels of several contaminants are uncovered. Most of these chemicals have ...


    By Inderscience Publishers

  • Spectroscopic surface sensor StaRWIS monitors FSK Bridge in Maryland - Case study

    In search of a suitable sensor for monitoring the Francis Scott Bridge in Maryland, Lufft USA's partner Communication Electronics, commissioned by the Maryland Transportation Authority, came across our new StaRWIS through our website. In February 2018, they installed the StaRWIS on the Bridge and it has delivered satisfying results every since. The sensor was convincing due to its easy ...

  • Uncertainty Analysis of Mound Monitoring for Recharged Water from Surface Spreading Basins

    This study has conceptually reviewed issues related to implementation of a groundwater mound monitoring well (GMMW) for monitoring recharged water from a surface spreading basin with emphasis on uncertain hydrogeological conditions. For this, we selected a recharge site in the City of Mesa, Arizona, that is characterized with near surface clay lenses of low permeability. A geostatistical ...

  • Dust monitoring

    Generally, two different approaches are used to measure the amount of dust deposited on a surface; Determination of the soiling of a surface, by a change in its properties; Determination of the quantity of dust deposited, by weight. WHAT IS DUST? Dust is a generic term used to describe fine particles that are suspended in the atmosphere. Dust comes from a wide variety of sources, including soil, ...


    By Queensland Laboratory

  • Arctic Lake Ice Systems Science (ALISS) - Seasonal Arctic Lake Freeze/Thaw Monitoring on Northern Alaska’s Coastal Plain - Case Study

    Alaska’s North Slope is often associated with cold weather, permafrost and oil production, however it is a diverse and beautiful landscape stemming northwards from the Brooks Range that supports an immense range of wildlife with its plethora of freshwater lakes. Researchers from the University of Alaska, Fairbanks and the USGS, are looking at how regional changes in climate are influencing ...


    By BeadedStream

  • Remote sensing models using Landsat satellite data to monitor algal blooms in Lake Champlain

    Lake Champlain is significantly impaired by excess phosphorus loading, requiring frequent lake-wide monitoring for eutrophic conditions and algal blooms. Satellite remote sensing provides regular, synoptic coverage of algal production over large areas with better spatial and temporal resolution compared with in situ monitoring. This study developed two algal production models using Landsat ...


    By IWA Publishing

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