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Kalivas, Dionissios; Kollias, V. J.; Karantounias, G.

doi:10.1023/a:1023066706852

Cited by 27 publications

(3 citation statements)

References 14 publications

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“…Such studies are limited worldwide [60,61], and although there are more than 400 coastal lagoons in the Mediterranean region [62], there are no relevant studies in the literature investigating the impact of the sea to the lagoon surface or vice versa, including the wider area of west Peloponnese. Moreover, there are several studies in the broader area regarding the spatiotemporal changes of the lagoon's sedimentation [26,63,64] but there are no such studies regarding the relationship between the shoreline changes and the Prokopos Lagoon spatiotemporal expansion changes for the 1945-2021 period.…”

Section: Discussionmentioning

confidence: 99%

Estimating Quantitative Morphometric Parameters and Spatiotemporal Evolution of the Prokopos Lagoon Using Remote Sensing Techniques

Apostolopoulos

Avramidis

Nikolakopoulos

2022

JMSE

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The Prokopos Lagoon is part of the Kotychi Strofilias National Wetlands Park, which is supervised by the Ministry of Environment, Energy and Climate Change of Greece. The lagoon is situated at the northwestern coast of the Peloponnese and is protected by the Ramsar Convention. It is an important ecosystem with ecological services providing habitats for many plants and animals and essential goods and services for humans as well. No previous relevant studies for the wider wetland area are available, and given that lagoons are important ecosystems, their diachronic evolution should be under constant monitoring. Using remote sensing techniques in Geographic Information System (GIS) environment, alterations in critical parameters could be measured and applied for the protection of the area. The present study examines the spatiotemporal changes of the water extent of the Prokopos Lagoon, estimating landscape metrics and several morphometric parameters and indices related to the geomorphological features of the lagoon for the 1945–2021 period. Moreover, the adjacent shoreline was studied for each past decade evolution from 1945 to present, and it is discussed to whether there is a relationship between shoreline changes and the lagoon. High resolution satellite images and air photos at scale 1:30,000 were used to digitize the shorelines and the polygons of the lagoon’s surface. Linear Regression Rates (LRR), Net Shoreline Movement (NSM), End Point Rate (EPR) and Shoreline Change Envelope (SCE) provided by the Digital Shoreline Analysis System (DSAS) were used to determine the changes. Finally, future shoreline positions for 2021 and 2031 are estimated, while based on statistic models, we found that in the coastal area, the erosion–accretion cycle is predicted to be completed in 2031, after almost 86 years since 1945.

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Section: Discussionmentioning

confidence: 99%

Estimating Quantitative Morphometric Parameters and Spatiotemporal Evolution of the Prokopos Lagoon Using Remote Sensing Techniques

Apostolopoulos

Avramidis

Nikolakopoulos

2022

JMSE

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“…The values obtained from our method were higher in Albufera de València and, to a lesser extent, in Kotychi lagoon; the sites with a higher level of irrigated agriculture relative coverage in their catchment. These two sites, with a very high eutrophication pressure assessment, have been historically altered ( [55] for Kotychi lagoon), with a permanent occurrence of cyanobacterial blooms due to nutrient enrichment ( [38] for Albufera de València). Other sites with high eutrophication pressure levels, with LUPLES method values between 10 and 20, were located in highly altered catchments, with a percentage of agriculture coverage above 50 or even 75% of the total area, such as Etang de Canet, Stagno di Cábras, Valli residue del comprensorio di Comacchio, Biviere di Gela or Stagno di Corru S'Ittiri.…”

Section: Discussionmentioning

confidence: 99%

Assessment of the Pressure Level over Lentic Waterbodies through the Estimation of Land Uses in the Catchment and Hydro-Morphological Alterations: The LUPLES Method

2021

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The features of lentic waterbodies largely depend on the surrounding environment. Mediterranean coastal lagoons have been historically altered, with their catchment being highly modified for agricultural, livestock, or urban uses. Changes in land uses induce pressures that impact the waterbodies and alter their ecological status. The objectives of this paper were: to develop a methodological approach (LUPLES: Land Uses for estimating Pressure Levels to approach the Ecological Status), to quantify the main pressures on the waterbodies and to forecast the possible impacts of these pressures on their ecological status. Corine-Land Cover maps and Geographic Information System technics were used to delineate and identify land uses in the catchments. Specific algorithms were created to quantify the main pressures from land uses in the catchment and hydro-morphological alterations in the immediate basin. The values of the estimated pressure levels were correlated with ecological status indicators using metrics developed for the European Water Framework Directive. Data were obtained from European and River Basin Authorities databases. Results showed statistically significant correlations between the pressure levels quantified by the LUPLES method and the impact level detected by biological, physical and chemical metrics. This method provides a useful approach to estimate the pressure levels affecting lentic waterbodies and could be applied to approach how they could affect their ecological status.

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“…4. Pipeline explosion and water cutting-off analysis, to find the best valve shutting program and determine the water cutting-off area according to the network information based on certain strategy when water leak occurs due to pipeline segment or node accident (Kesavan 1972;Kalivas et al 2003).…”

Section: The Analysis Subsystemmentioning

confidence: 99%

Functional Structure and Data Management of Urban Water Supply Network Based on GIS

Yan

Su²,

Chen

2009

Water Resour Manage

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This paper presents an urban water supply network system based on GIS technology. The system will adopt three-tier/N-tier architecture as the application logic structure. Thy system can be divided into six subsystems: the analysis subsystem, the aided design subsystem, the installation and maintenance management subsystem and the customer service subsystem serve data management subsystem. The data management of the system will adopt SuperMap. We present the details of the data management, such as basic data collection, structure framework of the basic geographic information bank, the process to construct GIS basic information bank of water supply network, data conversion and input into banks, data vectorization and input into banks, etc. Then the system database is designed in detail. We adopt object oriented analysis and design methods, and utilize Class Diagram of UML to represent the entity tables and their relations against the core data of the network system, that is spatial dictionary database and spatial database. According to Class Diagram, it can be directly mapped as the database structure and an example is given. Finally, the successful application of the system in Yiyang city of China is beneficial for water supply enterprises to utilize the existing water resource in time, rationally and effectively.

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Cited by 27 publications

References 14 publications

Estimating Quantitative Morphometric Parameters and Spatiotemporal Evolution of the Prokopos Lagoon Using Remote Sensing Techniques

Estimating Quantitative Morphometric Parameters and Spatiotemporal Evolution of the Prokopos Lagoon Using Remote Sensing Techniques

Assessment of the Pressure Level over Lentic Waterbodies through the Estimation of Land Uses in the Catchment and Hydro-Morphological Alterations: The LUPLES Method

Functional Structure and Data Management of Urban Water Supply Network Based on GIS

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