Περιλαμβάνονται, με χρονολογική σειρά, δημοσιεύσεις στις οποίες έχουν χρησιμοποιηθεί δεδομένα από το εθνικό δίκτυο παρακολούθησης λιμνών.
Δημοσιεύσεις σε επιστημονικά περιοδικά
Papadimos, Dimitris; Demertzi, Kleoniki; Papamichail, Dimitris
Assessing Lake Response to Extreme Climate Change Using the Coupled MIKE SHE/MIKE 11 Model: Case Study of Lake Zazari in Greece Δημοσίευση σε επιστημονικό περιοδικό
In: Water, vol. 14, no. 6, 2022, ISSN: 2073-4441.
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology
@article{Papadimos2022,
title = {Assessing Lake Response to Extreme Climate Change Using the Coupled MIKE SHE/MIKE 11 Model: Case Study of Lake Zazari in Greece},
author = {Dimitris Papadimos and Kleoniki Demertzi and Dimitris Papamichail},
doi = {10.3390/w14060921},
issn = {2073-4441},
year = {2022},
date = {2022-03-15},
journal = {Water},
volume = {14},
number = {6},
publisher = {MDPI AG},
abstract = {Lakes, either artificial or natural, are greatly important as a component in their catchments’ hydrology, but also as ecosystem service providers. However, due to climate change, they have begun to face numerous problems with their water quality and quantity. Furthermore, general circulation models (GCMs) show future climate change with a reduction in rainfall and increase in temperature. The aim of the current study is to present an application where GCMs and state-of-the-art hydrological modelling system MIKE SHE/MIKE 11 are combined for assessing the response of a Greek lake in terms of its water balance and water level under climate change. Four general circulation models (GCMs; GFDL-CM3, MIROC-ESM-CHEM, MIROC-ESM, IPSL-CM5A-LR) for the extreme climate change scenario of RCP8.5 were used in the basin of Lake Zazari in Greece as a case study. Results showed that, by keeping the irrigated demands (the main water user) unchanged in the future, the lake exhibited a lower water level for all GCMs, fluctuating from −0.70 to −1.8 m for the mean (min) water level and from −0.30 to −1.20 m for the mean (max) water level. Instead of the above and by preserving the amount of withdraw water n from the lake at a certain percentage of inflows, the irrigated area should be reduced from 54.1% to 64.05% depending on the circulation model.},
keywords = {Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology},
pubstate = {published},
tppubtype = {article}
}
Lakes, either artificial or natural, are greatly important as a component in their catchments’ hydrology, but also as ecosystem service providers. However, due to climate change, they have begun to face numerous problems with their water quality and quantity. Furthermore, general circulation models (GCMs) show future climate change with a reduction in rainfall and increase in temperature. The aim of the current study is to present an application where GCMs and state-of-the-art hydrological modelling system MIKE SHE/MIKE 11 are combined for assessing the response of a Greek lake in terms of its water balance and water level under climate change. Four general circulation models (GCMs; GFDL-CM3, MIROC-ESM-CHEM, MIROC-ESM, IPSL-CM5A-LR) for the extreme climate change scenario of RCP8.5 were used in the basin of Lake Zazari in Greece as a case study. Results showed that, by keeping the irrigated demands (the main water user) unchanged in the future, the lake exhibited a lower water level for all GCMs, fluctuating from −0.70 to −1.8 m for the mean (min) water level and from −0.30 to −1.20 m for the mean (max) water level. Instead of the above and by preserving the amount of withdraw water n from the lake at a certain percentage of inflows, the irrigated area should be reduced from 54.1% to 64.05% depending on the circulation model.
Zervas, Dimitrios; Tsiaoussi, Vasiliki; Kallimanis, Athanasios S.; Dimopoulos, Panayotis; Bergmeier, Erwin; Tsiripidis, Ioannis
Multiple-Facet Diversity Patterns of Aquatic Vegetation in Lakes along a Trophic Gradient Δημοσίευση σε επιστημονικό περιοδικό
In: Water, vol. 13, no. 16, 2021, ISSN: 2073-4441.
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology
@article{Zervas2021,
title = {Multiple-Facet Diversity Patterns of Aquatic Vegetation in Lakes along a Trophic Gradient},
author = {Dimitrios Zervas and Vasiliki Tsiaoussi and Athanasios S. Kallimanis and Panayotis Dimopoulos and Erwin Bergmeier and Ioannis Tsiripidis},
doi = {10.3390/w13162281},
issn = {2073-4441},
year = {2021},
date = {2021-08-20},
journal = {Water},
volume = {13},
number = {16},
publisher = {MDPI AG},
abstract = {The EU Water Framework Directive foresees the ecological assessment of surface waters against identified pressures. Nutrient loading is the main pressure impairing the ecological quality of lake ecosystems, and aquatic macrophytes are considered good indicators of ecological response. In this study, we statistically assessed different aspects of aquatic plant (macrophyte) diversity in response to different trophic levels in Mediterranean lakes. We used 5690 relevés of aquatic vegetation, distributed over 305 transects, sampled in 18 freshwater lake ecosystems during 2013–2016. Our results show a significant decrease in taxonomic alpha diversity in lakes with a total phosphorus content above 100 μg/L. Syntaxonomic diversity followed the species richness pattern as well. Functional richness decreased along the trophic gradient, while functional dispersion was higher in lakes with high trophic levels. Taxonomic and functional beta partitioning presented changes in assembly processes leading to greater community homogeneity in lakes with higher trophic levels. In summary, we found no redundancy between taxonomic and functional diversity indices. These results provide novel insights into aquatic plant assembly processes of impacted freshwater lakes needed to forward conservation and restoration practices.},
keywords = {Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology},
pubstate = {published},
tppubtype = {article}
}
The EU Water Framework Directive foresees the ecological assessment of surface waters against identified pressures. Nutrient loading is the main pressure impairing the ecological quality of lake ecosystems, and aquatic macrophytes are considered good indicators of ecological response. In this study, we statistically assessed different aspects of aquatic plant (macrophyte) diversity in response to different trophic levels in Mediterranean lakes. We used 5690 relevés of aquatic vegetation, distributed over 305 transects, sampled in 18 freshwater lake ecosystems during 2013–2016. Our results show a significant decrease in taxonomic alpha diversity in lakes with a total phosphorus content above 100 μg/L. Syntaxonomic diversity followed the species richness pattern as well. Functional richness decreased along the trophic gradient, while functional dispersion was higher in lakes with high trophic levels. Taxonomic and functional beta partitioning presented changes in assembly processes leading to greater community homogeneity in lakes with higher trophic levels. In summary, we found no redundancy between taxonomic and functional diversity indices. These results provide novel insights into aquatic plant assembly processes of impacted freshwater lakes needed to forward conservation and restoration practices.
Latinopoulos, Dionissis; Spiliotis, Mike; Ntislidou, Chrysoula; Kagalou, Ifigenia; Bobori, Dimitra; Tsiaoussi, Vasiliki; Lazaridou, Maria
“One Out–All Out” Principle in the Water Framework Directive 2000—A New Approach with Fuzzy Method on an Example of Greek Lakes Δημοσίευση σε επιστημονικό περιοδικό
In: Water, vol. 13, no. 13, 2021, ISSN: 2073-4441.
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology
@article{Latinopoulos2021,
title = {“One Out–All Out” Principle in the Water Framework Directive 2000—A New Approach with Fuzzy Method on an Example of Greek Lakes},
author = {Dionissis Latinopoulos and Mike Spiliotis and Chrysoula Ntislidou and Ifigenia Kagalou and Dimitra Bobori and Vasiliki Tsiaoussi and Maria Lazaridou},
doi = {10.3390/w13131776},
issn = {2073-4441},
year = {2021},
date = {2021-06-27},
journal = {Water},
volume = {13},
number = {13},
publisher = {MDPI AG},
abstract = {The “One Out–All Out” (OOAO) principle imposed by the WFD selects the worst ecological status assessed by different biological quality elements (BQEs). Since it is a precautionary rule that can lead to problems of underestimation of the overall status, its amendment has been a matter of debate for WFD 20+. The use of fuzzy methods that express the functional relationships between variables in ecology and management has been gaining more ground recently. Here is attempted the inclusion of a fuzzy regression among the frequently monitored BQE (phytoplankton) and the outcome of OOAO application in six Greek lakes. The latter was determined by the comparison of four BQE indices in order to assess the extent to which BQEs might underpin the optimal/actual qualitative classification of a waterbody. This approach encompasses the uncertainty and the possibility to broaden the acceptable final EQR based on the character and status of each lake. We concluded that the fuzzy OOAO is an approach that seems to allow a better understanding of the WFD implementation and case-specific evaluation, including the uncertainty in classification as an asset. Moreover, it offers a deeper understanding through self-learning processes based on the existing datasets.},
keywords = {Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology},
pubstate = {published},
tppubtype = {article}
}
The “One Out–All Out” (OOAO) principle imposed by the WFD selects the worst ecological status assessed by different biological quality elements (BQEs). Since it is a precautionary rule that can lead to problems of underestimation of the overall status, its amendment has been a matter of debate for WFD 20+. The use of fuzzy methods that express the functional relationships between variables in ecology and management has been gaining more ground recently. Here is attempted the inclusion of a fuzzy regression among the frequently monitored BQE (phytoplankton) and the outcome of OOAO application in six Greek lakes. The latter was determined by the comparison of four BQE indices in order to assess the extent to which BQEs might underpin the optimal/actual qualitative classification of a waterbody. This approach encompasses the uncertainty and the possibility to broaden the acceptable final EQR based on the character and status of each lake. We concluded that the fuzzy OOAO is an approach that seems to allow a better understanding of the WFD implementation and case-specific evaluation, including the uncertainty in classification as an asset. Moreover, it offers a deeper understanding through self-learning processes based on the existing datasets.
Kagalou, Ifigenia; Ntislidou, Chrysoula; Latinopoulos, Dionissis; Kemitzoglou, Dimitra; Tsiaoussi, Vasiliki; Bobori, Dimitra
Setting the Phosphorus Boundaries for Greek Natural Shallow and Deep Lakes for Water Framework Directive Compliance Δημοσίευση σε επιστημονικό περιοδικό
In: Water, vol. 13, no. 5, 2021, ISSN: 2073-4441.
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology
@article{Kagalou2021,
title = {Setting the Phosphorus Boundaries for Greek Natural Shallow and Deep Lakes for Water Framework Directive Compliance},
author = {Ifigenia Kagalou and Chrysoula Ntislidou and Dionissis Latinopoulos and Dimitra Kemitzoglou and Vasiliki Tsiaoussi and Dimitra Bobori},
doi = {10.3390/w13050739},
issn = {2073-4441},
year = {2021},
date = {2021-03-09},
journal = {Water},
volume = {13},
number = {5},
publisher = {MDPI AG},
abstract = {Eutrophication caused by nutrient enrichment is a predominant stressor leading to lake degradation and, thus, the set-up of boundaries that support good ecological status, the Water Framework Directive’s main target, is a necessity. Greece is one of the Member States that have recorded delays in complying with the coherent management goals of European legislation. A wide range of different statistical approaches has been proposed in the Best Practice Guide for determining appropriate nutrient thresholds. To determine the nutrient thresholds supporting the good status of natural Greek lakes, the phytoplankton dataset gathered from the national monitoring programme (2015–2020) was used for shallow and deep natural lakes. The regression analyses were sufficient and robust in order to derive total phosphorus thresholds that ranged from 20 to 41 μg/L in shallow and 15–32 μg/L in deep natural lake types. Nutrient boundaries that encompass the stressors these lakes are subject to, are essential in proper lake management design.},
keywords = {Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology},
pubstate = {published},
tppubtype = {article}
}
Eutrophication caused by nutrient enrichment is a predominant stressor leading to lake degradation and, thus, the set-up of boundaries that support good ecological status, the Water Framework Directive’s main target, is a necessity. Greece is one of the Member States that have recorded delays in complying with the coherent management goals of European legislation. A wide range of different statistical approaches has been proposed in the Best Practice Guide for determining appropriate nutrient thresholds. To determine the nutrient thresholds supporting the good status of natural Greek lakes, the phytoplankton dataset gathered from the national monitoring programme (2015–2020) was used for shallow and deep natural lakes. The regression analyses were sufficient and robust in order to derive total phosphorus thresholds that ranged from 20 to 41 μg/L in shallow and 15–32 μg/L in deep natural lake types. Nutrient boundaries that encompass the stressors these lakes are subject to, are essential in proper lake management design.
Doulgeris, Charalampos; Koukouli, Panagiota; Georgiou, Pantazis; Dalampakis, Paschalis; Karpouzos, Dimitrios
Assessment of Minimum Water Level in Lakes and Reservoirs Based on Their Morphological and Hydrological Features Δημοσίευση σε επιστημονικό περιοδικό
In: Hydrology, vol. 7, no. 4, 2020, ISSN: 2306-5338.
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: Earth-Surface Processes, Oceanography, Waste Management and Disposal, Water Science and Technology
@article{Doulgeris2020,
title = {Assessment of Minimum Water Level in Lakes and Reservoirs Based on Their Morphological and Hydrological Features},
author = {Charalampos Doulgeris and Panagiota Koukouli and Pantazis Georgiou and Paschalis Dalampakis and Dimitrios Karpouzos},
doi = {10.3390/hydrology7040083},
issn = {2306-5338},
year = {2020},
date = {2020-11-06},
journal = {Hydrology},
volume = {7},
number = {4},
publisher = {MDPI AG},
abstract = {The sustainable management of lakes and reservoirs requires the determination of their minimum environmental water level. Even though the assessment of minimum water level depends on a number of biotic and abiotic factors of the lake ecosystem, in many cases these factors are not entirely known and, furthermore, their evaluation is usually a challenging and laborious task. On the other hand, the lakes/reservoirs may comprise an important water resource to meet the requirements arising from economic activities. In this paper, the morphological and hydrological features of four lakes of northern Greece were analysed in order to assess their minimum environmental water level. The hydromorphological analysis was based on the relationship of the lake surface area and volume with water level as well as the water inflow from the lake’s hydrological catchment area, considering as the lake’s critical volume storage, the annual water volume flowing into a lake from its hydrological catchment area with a probability of exceedance 50% of a long time series of hydrological years. By combining morphological and hydrological features, the proposed methodology aimed to extend the analysis based solely on morphological features, and assess more comprehensively the minimum environmental water level in the four lakes, ensuring also the rising from the minimum level to the maximum (overflow) level for most of the hydrological years.},
keywords = {Earth-Surface Processes, Oceanography, Waste Management and Disposal, Water Science and Technology},
pubstate = {published},
tppubtype = {article}
}
The sustainable management of lakes and reservoirs requires the determination of their minimum environmental water level. Even though the assessment of minimum water level depends on a number of biotic and abiotic factors of the lake ecosystem, in many cases these factors are not entirely known and, furthermore, their evaluation is usually a challenging and laborious task. On the other hand, the lakes/reservoirs may comprise an important water resource to meet the requirements arising from economic activities. In this paper, the morphological and hydrological features of four lakes of northern Greece were analysed in order to assess their minimum environmental water level. The hydromorphological analysis was based on the relationship of the lake surface area and volume with water level as well as the water inflow from the lake’s hydrological catchment area, considering as the lake’s critical volume storage, the annual water volume flowing into a lake from its hydrological catchment area with a probability of exceedance 50% of a long time series of hydrological years. By combining morphological and hydrological features, the proposed methodology aimed to extend the analysis based solely on morphological features, and assess more comprehensively the minimum environmental water level in the four lakes, ensuring also the rising from the minimum level to the maximum (overflow) level for most of the hydrological years.
Petriki, Olga; Zervas, Dimitrios; Doulgeris, Charalampos; Bobori, Dimitra
Assessing the Ecological Water Level: The Case of Four Mediterranean Lakes Δημοσίευση σε επιστημονικό περιοδικό
In: Water, vol. 12, no. 11, 2020, ISSN: 2073-4441.
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology
@article{Petriki2020,
title = {Assessing the Ecological Water Level: The Case of Four Mediterranean Lakes},
author = {Olga Petriki and Dimitrios Zervas and Charalampos Doulgeris and Dimitra Bobori},
doi = {10.3390/w12112977},
issn = {2073-4441},
year = {2020},
date = {2020-10-23},
journal = {Water},
volume = {12},
number = {11},
publisher = {MDPI AG},
abstract = {The ecological water regime in lake water bodies refers to the water levels that enable the fulfillment of the ecosystem’s multiple functions. Therefore, assessing the ecological water regime necessitates the consideration of hydrological, economic, social, and ecological factors. The present research is focused on the assessment of the ecological water level of four Mediterranean natural lake ecosystems, considering their morphological and biological features. Initially, suggestions on the ecological water regime of the studied lakes were made based on an analysis of the lakes’ morphometry. Further, the ecological and biological requirements of the present fish fauna and aquatic macrophytic vegetation were considered. For the latter, mapping was conducted by extensive sampling according to international standards, in order to assess macrophyte composition, abundance, and chorology, as well as species sensitivity to water level fluctuations. The above guided the proposals on the optimal water level regime that should be met by each lake regarding the macrophytic and fish communities’ sustainability, also taking into account the unique hydromorphological features of each lake. The differences in the outcoming results revealed that hydromorphological and biological approaches should be combined for assessing lakes’ ecological water regimes.},
keywords = {Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology},
pubstate = {published},
tppubtype = {article}
}
The ecological water regime in lake water bodies refers to the water levels that enable the fulfillment of the ecosystem’s multiple functions. Therefore, assessing the ecological water regime necessitates the consideration of hydrological, economic, social, and ecological factors. The present research is focused on the assessment of the ecological water level of four Mediterranean natural lake ecosystems, considering their morphological and biological features. Initially, suggestions on the ecological water regime of the studied lakes were made based on an analysis of the lakes’ morphometry. Further, the ecological and biological requirements of the present fish fauna and aquatic macrophytic vegetation were considered. For the latter, mapping was conducted by extensive sampling according to international standards, in order to assess macrophyte composition, abundance, and chorology, as well as species sensitivity to water level fluctuations. The above guided the proposals on the optimal water level regime that should be met by each lake regarding the macrophytic and fish communities’ sustainability, also taking into account the unique hydromorphological features of each lake. The differences in the outcoming results revealed that hydromorphological and biological approaches should be combined for assessing lakes’ ecological water regimes.
Mavromati, Efpraxia; Kagalou, Ifigenia; Kemitzoglou, Dimitra; Apostolakis, Antonis; Seferlis, Miltiadis; Tsiaoussi, Vasiliki
Relationships Among Land Use Patterns, Hydromorphological Features and Physicochemical Parameters of Surface Waters: WFD Lake Monitoring in Greece Δημοσίευση σε επιστημονικό περιοδικό
In: Environ. Process., vol. 5, no. S1, pp. 139–151, 2018, ISSN: 2198-7505.
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: Environmental Engineering, Health, Management, Monitoring, Policy and Law, Pollution, Toxicology and Mutagenesis, Water Science and Technology
@article{Mavromati2018,
title = {Relationships Among Land Use Patterns, Hydromorphological Features and Physicochemical Parameters of Surface Waters: WFD Lake Monitoring in Greece},
author = {Efpraxia Mavromati and Ifigenia Kagalou and Dimitra Kemitzoglou and Antonis Apostolakis and Miltiadis Seferlis and Vasiliki Tsiaoussi},
doi = {10.1007/s40710-018-0315-6},
issn = {2198-7505},
year = {2018},
date = {2018-06-22},
journal = {Environ. Process.},
volume = {5},
number = {S1},
pages = {139--151},
publisher = {Springer Science and Business Media LLC},
abstract = {The national monitoring network of waters in Greece, in the context of Water Framework Directive (WFD), comprises 50 lake water bodies, both natural and artificial. The aims of the study are: (i) to present the pressures resulting from land cover and population density at river basin level; and (ii) to link catchment area features with physicochemical results from the first period of WFD monitoring. Land cover, population data in the catchment and physicochemical parameters were the main variables used in order to assess the lakes of the Greek WFD monitoring network. Intensive agriculture and urbanization, described as population density, proved to be the main pressure of severe impacted lakes as they were both highly associated with total phosphorus. Principal Components Analysis was used to position the Greek lakes along physical and chemical attributes, such as secchi depth, total phosphorus and ion concentrations and separate them according to their water quality. Clear reservoirs and natural lakes with high secchi depth were separated from more impacted ones with low secchi depth revealing a gradient of eutrophication, the most crucial anthropogenic pressure in Greece and in the Mediterranean area. The sustainable management of Greek lakes requires mitigation measures at a catchment scale, in order to regulate land uses, as well as site specific measures when needed.},
keywords = {Environmental Engineering, Health, Management, Monitoring, Policy and Law, Pollution, Toxicology and Mutagenesis, Water Science and Technology},
pubstate = {published},
tppubtype = {article}
}
The national monitoring network of waters in Greece, in the context of Water Framework Directive (WFD), comprises 50 lake water bodies, both natural and artificial. The aims of the study are: (i) to present the pressures resulting from land cover and population density at river basin level; and (ii) to link catchment area features with physicochemical results from the first period of WFD monitoring. Land cover, population data in the catchment and physicochemical parameters were the main variables used in order to assess the lakes of the Greek WFD monitoring network. Intensive agriculture and urbanization, described as population density, proved to be the main pressure of severe impacted lakes as they were both highly associated with total phosphorus. Principal Components Analysis was used to position the Greek lakes along physical and chemical attributes, such as secchi depth, total phosphorus and ion concentrations and separate them according to their water quality. Clear reservoirs and natural lakes with high secchi depth were separated from more impacted ones with low secchi depth revealing a gradient of eutrophication, the most crucial anthropogenic pressure in Greece and in the Mediterranean area. The sustainable management of Greek lakes requires mitigation measures at a catchment scale, in order to regulate land uses, as well as site specific measures when needed.
