Automated high frequency monitoring of Lake Maggiore through <em>in situ</em> sensors: system design, field test and data quality control

A high frequency monitoring (HFM) system for the deep subalpine lakes Maggiore, Lugano and Como is under development within the EU INTERREG project SIMILE. The HFM system is designed to i) describe often neglected but potentially relevant processes occurring on short time scale; ii) become a cost-effective source of environmental data; and iii) strengthen the coordinated management of water resources in the subalpine lake district. In this project framework, a first HFM station (LM1) consisting of a monitoring buoy was placed in Lake Maggiore. LM1 represents a pilot experience within the project, aimed at providing the practical know-how needed for the development of the whole HFM system. To increase replicability and transferability, LM1 was developed in-house, and conceived as a low-cost modular system. LM1 is presently equipped with solar panels, a weather station, and sensors for water temperature, pH, dissolved oxygen, conductivity, and chlorophyll-a. In this study, we describe the main features of LM1 (hardware and software) and the adopted Quality Assurance/Quality Control (QA/QC) procedures. To this end, we provide examples from a test period, i.e., the first 9-months of functioning of LM1. A description of the software selected as data management software for the HFM system (IstSOS) is also provided. Data gathered during the study period provided clear evidence that coupling HFM and discrete sampling for QA/QC controls is necessary to produce accurate data and to detect and correct errors, mainly because of sensor fouling and calibration drift. These results also provide essential information to develop further the HFM system and shared protocols adapted to the local environmental (i.e., large subalpine lakes) and technical (expertise availability) context. Next challenge is making HFM not only a source of previously unaffordable information, but also a cost-effective tool for environmental monitoring.

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A revised FMEA application to the quality control management

International Journal of Quality & Reliability Management ◽

10.1108/ijqrm-02-2013-0028 ◽

2014 ◽

Vol 31 (7) ◽

pp. 788-810 ◽

Cited By ~ 22

Author(s):

Claudia Paciarotti ◽

Giovanni Mazzuto ◽

Davide D’Ettorre

Keyword(s):

Quality Control ◽

Failure Modes ◽

Cost Effective ◽

Weight Functions ◽

Time Saving ◽

Content Type ◽

Complete Procedure ◽

Medium Enterprise ◽

Control Management ◽

Critical Situations

Purpose – The purpose of this paper is to propose a cost-effective, time-saving and easy-to-use failure modes and effects analysis (FMEA) system applied on the quality control of supplied products. The traditional FMEA has been modified and adapted to fit the quality control features and requirements. The paper introduces a new and revised FMEA approach, where the “failure concept” has been modified with “defect concept.” Design/methodology/approach – The typical FMEA parameters have been modified, and a non-linear scale has been introduced to better evaluate the FMEA parameters. In addition, two weight functions have been introduced in the risk priority number (RPN) calculus in order to consider different critical situations previously ignored and the RPN is assigned to several similar products in order to reduce the problem of complexity. Findings – A complete procedure is provided in order to assist managers in deciding on the critical suppliers, the creation of homogeneous families overcome the complexity of single product code approach, in RPN definition the relative importance of factors is evaluated. Originality/value – This different approach facilitates the quality control managers acting as a structured and “friendly” decision support system: the quality control manager can easily evaluate the critical situations and simulate different scenarios of corrective actions in order to choose the best one. This FMEA technique is a dynamic tool and the performed process is an iterative one. The method has been applied in a small medium enterprise producing hydro massage bathtub, shower, spas and that commercializes bathroom furniture. The firm application has been carried out involving a cross-functional and multidisciplinary team.

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Flexible nonstationary spatiotemporal modeling of high‐frequency monitoring data

Environmetrics ◽

10.1002/env.2670 ◽

2021 ◽

Author(s):

Christopher J. Geoga ◽

Mihai Anitescu ◽

Michael L. Stein

Keyword(s):

High Frequency ◽

Monitoring Data ◽

Spatiotemporal Modeling ◽

Frequency Monitoring

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High-resolution monitoring of nutrients in groundwater and surface waters: process understanding, quantification of loads and concentrations, and management applications

Hydrology and Earth System Sciences ◽

10.5194/hess-20-3619-2016 ◽

2016 ◽

Vol 20 (9) ◽

pp. 3619-3629 ◽

Cited By ~ 16

Author(s):

Frans C. van Geer ◽

Brian Kronvang ◽

Hans Peter Broers

Keyword(s):

High Resolution ◽

High Frequency ◽

Temporal Trends ◽

Surface Water Quality ◽

Mitigation Measures ◽

Nutrient Concentrations ◽

Special Issue ◽

Monitoring Strategies ◽

Frequency Monitoring ◽

Water Quality And Quantity

Abstract. Four sessions on "Monitoring Strategies: temporal trends in groundwater and surface water quality and quantity" at the EGU conferences in 2012, 2013, 2014, and 2015 and a special issue of HESS form the background for this overview of the current state of high-resolution monitoring of nutrients. The overview includes a summary of technologies applied in high-frequency monitoring of nutrients in the special issue. Moreover, we present a new assessment of the objectives behind high-frequency monitoring as classified into three main groups: (i) improved understanding of the underlying hydrological, chemical, and biological processes (PU); (ii) quantification of true nutrient concentrations and loads (Q); and (iii) operational management, including evaluation of the effects of mitigation measures (M). The contributions in the special issue focus on the implementation of high-frequency monitoring within the broader context of policy making and management of water in Europe for support of EU directives such as the Water Framework Directive, the Groundwater Directive, and the Nitrates Directive. The overview presented enabled us to highlight the typical objectives encountered in the application of high-frequency monitoring and to reflect on future developments and research needs in this growing field of expertise.

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Application of High Frequency Monitoring for Classification of Rolling Element Bearing Failures

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.204-205.173 ◽

2001 ◽

Vol 204-205 ◽

pp. 173-184 ◽

Cited By ~ 3

Author(s):

E.D. Price ◽

A.W. Lees ◽

Michael I. Friswell

Keyword(s):

High Frequency ◽

Rolling Element Bearing ◽

Bearing Failures ◽

Rolling Element ◽

Frequency Monitoring ◽

Element Bearing

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Automated quality control of High Frequency radar data

2012 Oceans ◽

10.1109/oceans.2012.6404809 ◽

2012 ◽

Cited By ~ 9

Author(s):

H. Roarty ◽

M. Smith ◽

J. Kerfoot ◽

J. Kohut ◽

S. Glenn

Keyword(s):

Quality Control ◽

High Frequency ◽

Radar Data ◽

High Frequency Radar ◽

Automated Quality Control

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Assessment of the Extent and Causes of Fuelwood Collection in the Surrounding Communities of Kasewe Reserved Forest, Sierra Leone

Journal of Applied Sciences and Environmental Management ◽

10.4314/jasem.v25i7.24 ◽

2021 ◽

Vol 25 (7) ◽

pp. 1271-1276

Author(s):

A.H. Koroma ◽

A. Mansaray ◽

A. Sesay

Keyword(s):

Sierra Leone ◽

High Frequency ◽

Cost Effective ◽

Forest Degradation ◽

Sustainable Utilization ◽

Factors Affecting ◽

Cooking Process ◽

Domestic Use ◽

Preferred Species ◽

Significant Factors

Seven (7) communities living in and around the Kasewe forest reserved were sampled to assess the extent and causes of fuelwood collection from the reserved forest involving 50 individuals in stratified random technique with a view to evaluate the degree and reasons for fuelwood collection from the Kasewe reserved forest. Data obtained indicate a high frequency of fuelwood harvest in the forest throughout the year. The significant factors affecting such decisions were availability and accessibility, ensure fast cooking process, and cost-effective. In addition, fuelwood activities were intensive throughout the year but peaks late dry season. Hence 48 (96%) of respondents stated forest degradation as one of the significant threats posed by fuelwood collectors to the forest. The study indicates that 100% of the collector are unemployed this was mainly the reason why residents of those communities collect fuelwood from the reserved forest. However, this study concluded that fuelwood collectors were selective over the kind of species they harvest, but the preferred species were not replanted. Fuelwood in the study area is not restricted to domestic use as it is also sold to augment local income. The sale of fuelwood is probably the biggest threat to sustainable utilization of fuelwood and the forest. Therefore, this study recommends that alternatives sources of livelihood and energy be created, among other recommendations for resident communities that will reduce the frequency of harvest from the forest.

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A 14-Year Multi-sites and High-Frequency Monitoring of Salinity in the Tidal Garonne River (S-W France) Reveals Marked Inter-annual Variability in Marine Intrusion

Springer Water - Estuaries and Coastal Zones in Times of Global Change ◽

10.1007/978-981-15-2081-5_1 ◽

2020 ◽

pp. 3-11

Author(s):

Sabine Schmidt

Keyword(s):

High Frequency ◽

Annual Variability ◽

Garonne River ◽

Frequency Monitoring

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Simple rules for an efficient use of Geographic Information Systems in molecular ecology

10.1101/113225 ◽

2017 ◽

Author(s):

Kevin Leempoel ◽

Solange Duruz ◽

Estelle Rochat ◽

Ivo Widmer ◽

Pablo Orozco-terWengel ◽

...

Keyword(s):

Information Systems ◽

Geographic Information Systems ◽

Open Source ◽

Spatial Data ◽

Molecular Ecology ◽

Relevant Information ◽

Geographic Information ◽

Environmental Data ◽

Essential Information ◽

Open Source Gis

AbstractGeographic Information Systems (GIS) are becoming increasingly popular in the context of molecular ecology and conservation biology thanks to their display options efficiency, flexibility and management of geodata. Indeed, spatial data for wildlife and livestock species is becoming a trend with many researchers publishing genomic data that is specifically suitable for landscape studies. GIS uniquely reveal the possibility to overlay genetic information with environmental data and, as such, allow us to locate and analyze genetic boundaries of various plant and animal species or to study gene-environment associations (GEA). This means that, using GIS, we can potentially identify the genetic bases of species adaptation to particular geographic conditions or to climate change. However, many biologists are not familiar with the use of GIS and underlying concepts and thus experience difficulties in finding relevant information and instructions on how to use them. In this paper, we illustrate the power of free and open source GIS approaches and provide essential information for their successful application in molecular ecology. First, we introduce key concepts related to GIS than are too often overlooked in the literature, for example coordinate systems, GPS accuracy and scale. We then provide an overview of the most employed open-source GIS-related software, file formats and refer to major environmental databases. We also reconsider sampling strategies as high costs of Next Generation Sequencing (NGS) data currently diminish the number of samples that can be sequenced per location. Thereafter, we detail methods of data exploration and spatial statistics suited for the analysis of large genetic datasets. Finally, we provide suggestions to properly edit maps and to make them as comprehensive as possible, either manually or trough programming languages.

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