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Assessment of Automatically Monitored Water Levels and Water Quality Indicators in Rivers with Different Hydromorphological Conditions and Pollution Levels in Greece

Institute of Marine Biological Resources and Inland Waters, Hellenic Centre for Marine Research-H.C.M.R., Anavyssos, 19013 Attica, Greece
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Academic Editors: Tammo Steenhuis and Yanfang Sang
Hydrology 2021, 8(2), 86; https://doi.org/10.3390/hydrology8020086
Received: 28 April 2021 / Revised: 26 May 2021 / Accepted: 27 May 2021 / Published: 31 May 2021
Water resources, especially riverine ecosystems, are globally under qualitative and quantitative degradation due to human-imposed pressures. High-temporal-resolution data obtained from automatic stations can provide insights into the processes that link catchment hydrology and streamwater chemistry. The scope of this paper was to investigate the statistical behavior of high-frequency measurements at sites with known hydromorphological and pollution pressures. For this purpose, hourly time series of water levels and key water quality indicators (temperature, electric conductivity, and dissolved oxygen concentrations) collected from four automatic monitoring stations under different hydromorphological conditions and pollution pressures were statistically elaborated. Based on the results, the hydromorphological conditions and pollution pressures of each station were confirmed to be reflected in the results of the statistical analysis performed. It was proven that the comparative use of the statistics and patterns of the water level and quality high-frequency time series could be used in the interpretation of the current site status as well as allowing the detection of possible changes. This approach can be used as a tool for the definition of thresholds, and will contribute to the design of management and restoration measures for the most impacted areas. View Full-Text
Keywords: automated monitoring survey; time-series statistical analysis; Greek rivers; pollution pressures; cost-effective monitoring automated monitoring survey; time-series statistical analysis; Greek rivers; pollution pressures; cost-effective monitoring
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MDPI and ACS Style

Mentzafou, A.; Varlas, G.; Papadopoulos, A.; Poulis, G.; Dimitriou, E. Assessment of Automatically Monitored Water Levels and Water Quality Indicators in Rivers with Different Hydromorphological Conditions and Pollution Levels in Greece. Hydrology 2021, 8, 86. https://doi.org/10.3390/hydrology8020086

AMA Style

Mentzafou A, Varlas G, Papadopoulos A, Poulis G, Dimitriou E. Assessment of Automatically Monitored Water Levels and Water Quality Indicators in Rivers with Different Hydromorphological Conditions and Pollution Levels in Greece. Hydrology. 2021; 8(2):86. https://doi.org/10.3390/hydrology8020086

Chicago/Turabian Style

Mentzafou, Angeliki, George Varlas, Anastasios Papadopoulos, Georgios Poulis, and Elias Dimitriou. 2021. "Assessment of Automatically Monitored Water Levels and Water Quality Indicators in Rivers with Different Hydromorphological Conditions and Pollution Levels in Greece" Hydrology 8, no. 2: 86. https://doi.org/10.3390/hydrology8020086

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