lake monitoring Articles | Environmental XPRT

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 ...

Sep. 26, 2018

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 ...

May 5, 2017

By Oceanalpha Co., Ltd.

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, ...

Jul. 1, 2016

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 ...

Jul. 13, 2009

By Precision Measurement Engineering, Inc. (PME)

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 ...

Sep. 19, 2014

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 ...

Jun. 20, 2011

By Inderscience Publishers

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 ...

Dec. 31, 2010

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 ...

Jun. 30, 2005

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 ...

Dec. 31, 2004

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 ...

Jan. 17, 2017

By OTT HydroMet

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 ...

Apr. 6, 2018

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 ...

Feb. 17, 2013

By IWA Publishing

Permafrost Monitoring - High resolution temperature profiling of active layer permafrost at Teshekpuk Lake - Case Study

Teshekpuk Lake is the largest lake in the Alaskan Arctic and the third largest lake in the state. Given the importance of this region to an abundance of native wildlife and expected environmental changes associated with projected sea-level rise, coastline erosion and oil and gas development, the Teshekpuk Lake Observatory (TLO) was established as an effort to gain a ...

Apr. 6, 2018

By BeadedStream

Use of Phytoplankton Assemblages for Monitoring Ecological Status of Lakes within the Water Framework Directive: The Assemblage Index

On basis of recent developments in phytoplankton ecology an assemblage index,Q,was developed to assess ecological status of di .erent lake types established by the Water Framework Directive (WFD).Since 5 ‡Q ‡0,the developed index can provide 5-grade quali .cation required by WFD.Case studies from very di .erent lake types support the usefulness of the developed index.Straights and weaknesses of ...

Dec. 31, 2005

By Springer

6712 Sampler Monitoring of Blue-Green Algae in Lake Winnebago - Fond Du Lac, Wisconsin - Case Study

The Teledyne Isco 6712 portable sampler was used to monitor not only the production of the blue-green algal in Lake Winnebago, but also any algae toxins that could contaminate the surrounding community’s drinking water. ...

Mar. 2, 2017

By Teledyne ISCO

Lake Edku water-quality monitoring, analysis and management model for optimising drainage water treatment using a genetic algorithm

Lake Edku, one of the northern Nile Delta Lakes, subjected to huge inputs of nutrients (especially phosphorous and nitrogen). These nutritional conditions create rich resource spectrum for algal growth and make the lake suffer from high level of eutrophication. Lake Edku does not have numeric water quality criteria for nutrients. The main objective of this research is to develop a model which can ...

Dec. 1, 2009

By Inderscience Publishers

The US EPA Lake Erie indicators monitoring program 1983 - 2002:trends in phosphorus, silica and chlorophyll a in the central basin.

During the past 20 years, Lake Erie has exhibited a series of complex chemical changes resulting from changing anthropogenic influences and introductions of exotic species. Since 1990, some apparent trends in nutrient concentrations have been inconsistent with the predictions of models originally used to guide Lake Erie water quality management. We performed time trend analysis on total ...

Dec. 31, 2002

By EarthSoft, Inc

Monitoring watershed health

Background Municipal water quality managers recognize the need for data that can be used to monitor and assess the impact of urbanization on the condition of natural watersheds. Storm events, in conjunction with the alteration of native landscape, building of roads and overuse of fertilizer, can contribute to excess nutrients, sediment and other pollutants in environmentally significant ...

May 5, 2010

By OTT HydroMet

Meadow Lake MHP-MI Project Profile

Background In February 2008 AdEdge Technologies, Inc. was selected as the sole vendor by Sun Communities, a nation wide owner and operator of Mobile Home Communities, to supply an iron and manganese treatment system, for the Meadow Lake MHC in White Lake, Michigan. The Meadow Lake MHC treatment system is the third packaged treatment system Sun Communities has purchased from AdEdge. The ...

Jun. 21, 2009

By Adedge Water Technologies, LLC

Progress Toward Delisting a Great Lakes Area of Concern: The Role of Integrated Research and Monitoring in the Hamilton Harbour Remedial Action Plan

The goal of restoring environmental health and qualities to Hamilton Harbour Great Lakes Area of Concern, an embayment at the western end of Lake Ontario, is considered to be achievable by the year 2015. Restoring Hamilton Harbour is a dynamic process that relies heavily on research and monitoring to direct remediation efforts. Three principle means of coordinating this research and monitoring ...

Jan. 31, 2006

By Springer

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