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Cengiz Koparan, A. Bulent Koc, Charles V. Privette and Calvin B. Sawyer
Water quality monitoring and predicting the changes in water characteristics require the collection of water samples in a timely manner. Water sample collection based on in situ measurable water quality indicators can increase the efficiency and precisio...
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Cengiz Koparan, Ali Bulent Koc, Charles V. Privette, Calvin B. Sawyer and Julia L. Sharp
Water quality assessment programs for the management of water resources require the collection of water samples for physical, chemical, and biological analyses. Lack of personnel, accessibility of water bodies, and time constraints, especially after natu...
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Jakob Benisch, Björn Helm, Xin Chang and Peter Krebs
The European Union Water Framework Directive (2000/60/EC; WFD) aims to achieve a good ecological and chemical status of all bodies of surface water by 2027. The development of integrated guidance on surface water chemical monitoring (e.g., WFD Guidance D...
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Alice Zaghini, Francesca Gagliardi, Valentina Marsili, Filippo Mazzoni, Lorenzo Tirello, Stefano Alvisi and Marco Franchini
Providing water with adequate quality to users is one of the main concerns for water utilities. In most countries, this is ensured through the introduction of disinfectants, such as chlorine, which are subjected to decay over time, with consequent loss o...
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W. Matthew Sattley, Brad M. Burchell, Stephen D. Conrad, Michael T. Madigan
Pág. 1 - 10
The cost of high-resolution water sampling devices for ecological studies and water quality analyses can be prohibitive. Moreover, the potential for operator error in the use of complicated sampling equipment can lead to inaccuracies. Here we describe th...
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W. Matthew Sattley, Brad M. Burchell, Stephen D. Conrad and Michael T. Madigan
The cost of high-resolution water sampling devices for ecological studies and water quality analyses can be prohibitive. Moreover, the potential for operator error in the use of complicated sampling equipment can lead to inaccuracies. Here we describe th...
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Rihong Zhang, Zhenhao Wang, Xiaomin Li, Zipeng She and Baoe Wang
Water quality sampling and monitoring are fundamental to water environmental protection. The purpose of this study was to develop a water quality sampling and multi-parameter monitoring system mounted on a multi-rotor unmanned aerial vehicle (UAV). The s...
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Francesco Maria De Filippi and Giuseppe Sappa
Cost-effective remediation is increasingly dependent on high-resolution site characterization (HRSC), which is supposed to be necessary prior to interventions. This paper aims to evaluate the use of low-flow purging and sampling water level data in estim...
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Marko Kaasik, Outi Meinander, Leena Leppänen, Kati Anttila, Pavla Dagsson-Waldhauserova, Anders Ginnerup, Timo Hampinen, Yijing Liu, Andri Gunnarsson, Kirsty Langley and Ali Nadir Arslan
Snow sampling, either by inserting a tube through the entire snowpack or by taking samples from the vertical profile, is widely applied to measure the snow depth, density, and snow water equivalent (SWE). A comparative study of snow-sampling methods was ...
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Chrysoula Ntislidou, Dimitra Bobori and Maria Lazaridou
The estimation of the number of samples required for reliably monitoring lakes? benthic macroinvertebrates is difficult due to the natural variability and cost and time constraints. To determine a statistically robust and effective sampling design, we co...
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Amila Abeynayaka, Fujio Kojima, Yoshikazu Miwa, Nobuhiro Ito, Yasuo Nihei, Yu Fukunaga, Yuga Yashima and Norihiro Itsubo
Environmental sampling plays an important role in quantitative and qualitative investigation of plastic pollution. Rivers are a major source, carrying plastic litter into the oceans. Microplastic sampling in riverine and coastal environments is often a c...
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Cengiz Koparan, Ali Bulent Koc, Charles V. Privette and Calvin B. Sawyer
The objective of this research was to conduct in situ measurements of electrical conductivity (EC), pH, dissolved oxygen (DO), and temperature, and collect water samples simultaneously at different depths using an unmanned aerial vehicle (UAV). The UAV s...
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Khalid Oubennaceur, Karem Chokmani, Miroslav Nastev, Yves Gauthier, Jimmy Poulin, Marion Tanguy, Sebastien Raymond and Rachid Lhissou
A new method for sensitivity analysis of water depths is presented based on a two-dimensional hydraulic model as a convenient and cost-effective alternative to Monte Carlo simulations. The method involves perturbation of the probability distribution of i...
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Mahmoud Saleh Al-Khafaji
This paper proposes a novel deterministic methodology for estimating the optimal sampling frequency (SF) of water quality monitoring systems. The proposed methodology is based on employing two-dimensional contaminant transport simulation models to determ...
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Cengiz Koparan, Ali Bulent Koc, Charles V. Privette and Calvin B. Sawyer
An unmanned aerial vehicle-assisted water quality measurement system (UAMS) was developed for in situ surface water quality measurement. A custom-built hexacopter was equipped with an open-source electronic sensors platform to measure the temperature, el...
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Robin Lenz and Matthias Labrenz
A variety of microplastic sampling instrumentation is currently used for water pollution studies. Plankton net-based approaches have been the most adopted techniques for water column and surface sampling. When applied to microplastics (MP) in the lower µ...
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Cengiz Koparan, Ali Bulent Koc, Charles V. Privette and Calvin B. Sawyer
An unmanned aerial vehicle-assisted water quality measurement system (UAMS) was developed for in situ surface water quality measurement. A custom-built hexacopter was equipped with an open-source electronic sensors platform to measure the temperature, el...
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Cengiz Koparan, Ali Bulent Koc, Charles V. Privette, Calvin B. Sawyer and Julia L. Sharp
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Amirreza Sharifi, Haw Yen, Carlington W. Wallace, Gregory McCarty, Wade Crow, Bahram Momen, Megan W. Lang, Ali Sadeghi, Sangchul Lee, Judith Denver and Martin C. Rabenhorst
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Amirreza Sharifi, Haw Yen, Carlington W. Wallace, Gregory McCarty, Wade Crow, Bahram Momen, Megan W. Lang, Ali Sadeghi, Sangchul Lee, Judith Denver and Martin C. Rabenhorst
High frequency in-situ measurements of nitrate can greatly reduce uncertainty in nitrate flux estimates. Water quality databases maintained by various federal and state agencies often consist of pollutant concentration data obtained from periodic grab sa...
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