Seawater Intrusion Vulnerability Assessment Using the GALDIT and the Modified GALDIT–AHP Methods: Application in the Coastal Almyros Aquifer, Thessaly, Greece
In the rural and coastal Almyros basin in Magnesia, Greece, the objective of the current study is the assessment of aquifer vulnerability to seawater intrusion using the GALDIT approach. The Almyros aquifer system’s quality and quantity have declined as a result of unsustainable groundwater abstract...
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MDPI AG
2023-04-01
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Online Access: | https://www.mdpi.com/2673-4931/25/1/15 |
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author | Sibianka Lepuri Athanasios Loukas Aikaterini Lyra |
author_facet | Sibianka Lepuri Athanasios Loukas Aikaterini Lyra |
author_sort | Sibianka Lepuri |
collection | DOAJ |
description | In the rural and coastal Almyros basin in Magnesia, Greece, the objective of the current study is the assessment of aquifer vulnerability to seawater intrusion using the GALDIT approach. The Almyros aquifer system’s quality and quantity have declined as a result of unsustainable groundwater abstraction for irrigation. The Analytical Hierarchy Process (AHP) of Multicriteria Analysis has been used for the modification of the GALDIT index based on the statistics of experts’s responses to questionnaires on the influence of hydrological, hydrogeological, and other parameters. For all methodologies and time periods, the aquifer’s coastline section had high susceptibility levels, whereas the northeast and southeast had lower values. The most vulnerable area of the aquifer changes over the various time periods of analysis. |
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format | Article |
id | doaj.art-636b16e4f5be4cf1974bf0dd5ce75e9e |
institution | Directory Open Access Journal |
issn | 2673-4931 |
language | English |
last_indexed | 2024-03-11T02:29:41Z |
publishDate | 2023-04-01 |
publisher | MDPI AG |
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spelling | doaj.art-636b16e4f5be4cf1974bf0dd5ce75e9e2023-11-18T10:19:06ZengMDPI AGEnvironmental Sciences Proceedings2673-49312023-04-012511510.3390/ECWS-7-14174Seawater Intrusion Vulnerability Assessment Using the GALDIT and the Modified GALDIT–AHP Methods: Application in the Coastal Almyros Aquifer, Thessaly, GreeceSibianka Lepuri0Athanasios Loukas1Aikaterini Lyra2Laboratory of Hydraulic Works and Environmental Management, School of Rural and Surveying Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceLaboratory of Hydraulic Works and Environmental Management, School of Rural and Surveying Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceLaboratory of Hydrology and Aquatic Systems Analysis, Department of Civil Engineering, School of Engineering, University of Thessaly, 38334 Volos, GreeceIn the rural and coastal Almyros basin in Magnesia, Greece, the objective of the current study is the assessment of aquifer vulnerability to seawater intrusion using the GALDIT approach. The Almyros aquifer system’s quality and quantity have declined as a result of unsustainable groundwater abstraction for irrigation. The Analytical Hierarchy Process (AHP) of Multicriteria Analysis has been used for the modification of the GALDIT index based on the statistics of experts’s responses to questionnaires on the influence of hydrological, hydrogeological, and other parameters. For all methodologies and time periods, the aquifer’s coastline section had high susceptibility levels, whereas the northeast and southeast had lower values. The most vulnerable area of the aquifer changes over the various time periods of analysis.https://www.mdpi.com/2673-4931/25/1/15groundwaterseawater intrusionGALDITvulnerability indexanalytical hierarchy processAlmyros |
spellingShingle | Sibianka Lepuri Athanasios Loukas Aikaterini Lyra Seawater Intrusion Vulnerability Assessment Using the GALDIT and the Modified GALDIT–AHP Methods: Application in the Coastal Almyros Aquifer, Thessaly, Greece Environmental Sciences Proceedings groundwater seawater intrusion GALDIT vulnerability index analytical hierarchy process Almyros |
title | Seawater Intrusion Vulnerability Assessment Using the GALDIT and the Modified GALDIT–AHP Methods: Application in the Coastal Almyros Aquifer, Thessaly, Greece |
title_full | Seawater Intrusion Vulnerability Assessment Using the GALDIT and the Modified GALDIT–AHP Methods: Application in the Coastal Almyros Aquifer, Thessaly, Greece |
title_fullStr | Seawater Intrusion Vulnerability Assessment Using the GALDIT and the Modified GALDIT–AHP Methods: Application in the Coastal Almyros Aquifer, Thessaly, Greece |
title_full_unstemmed | Seawater Intrusion Vulnerability Assessment Using the GALDIT and the Modified GALDIT–AHP Methods: Application in the Coastal Almyros Aquifer, Thessaly, Greece |
title_short | Seawater Intrusion Vulnerability Assessment Using the GALDIT and the Modified GALDIT–AHP Methods: Application in the Coastal Almyros Aquifer, Thessaly, Greece |
title_sort | seawater intrusion vulnerability assessment using the galdit and the modified galdit ahp methods application in the coastal almyros aquifer thessaly greece |
topic | groundwater seawater intrusion GALDIT vulnerability index analytical hierarchy process Almyros |
url | https://www.mdpi.com/2673-4931/25/1/15 |
work_keys_str_mv | AT sibiankalepuri seawaterintrusionvulnerabilityassessmentusingthegalditandthemodifiedgalditahpmethodsapplicationinthecoastalalmyrosaquiferthessalygreece AT athanasiosloukas seawaterintrusionvulnerabilityassessmentusingthegalditandthemodifiedgalditahpmethodsapplicationinthecoastalalmyrosaquiferthessalygreece AT aikaterinilyra seawaterintrusionvulnerabilityassessmentusingthegalditandthemodifiedgalditahpmethodsapplicationinthecoastalalmyrosaquiferthessalygreece |