Andreas Kallioras

Andreas Kallioras
National Technical University of Athens | NTUA · Department of Geological Sciences

Doctor of Engineering

About

106
Publications
21,736
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
747
Citations
Additional affiliations
December 2013 - present
National Technical University of Athens
Position
  • Professor (Assistant)
January 2012 - January 2014
Helmholtz-Zentrum für Umweltforschung
Position
  • Research Associate
November 2008 - December 2012
Technische Universität Darmstadt
Position
  • PostDoc Position

Publications

Publications (106)
Conference Paper
Full-text available
Argolis plain, one of the largest agricultural areas of Greece, is of great hydrological interest. Extensive qualitative degradation of groundwater aquifer systems, the use of Managed Aquifer Recharge technologies that started several decades ago, water infrastructure for irrigation purposes and water intended for artificial recharge and the abstra...
Article
Full-text available
The identification of the hydrological processes taking place at coastal systems and the interaction between aquifers and the sea have been key features for many groundwater-related studies. However, the suitability of different boundary conditions for representing the hydrodynamic conditions along the coast in modelling applications is widely disc...
Article
A participatory modelling approach is presented for effective groundwater management at the Mediterranean coastal plain of Marathon, Greece. The main objective was to identify groundwater problems in the area and to propose a viable groundwater management plan. Detailed investigation, using scientific literature and field work in the area, was cond...
Article
Groundwater management of coastal aquifers is a scientific and engineering challenge, as coastal aquifer systems are hydrogeologic features that are hydraulically connected with the sea while at the same time are stressed with extensive abstraction practices for irrigation. To remedy this, Managed Aquifer Recharge -MAR- is proved to be a sound and...
Preprint
Full-text available
SWAT (Soil and Water Assessment Tool) is a continuous time, semi-distributed river basin model that has been widely used to evaluate the effects of alternative management decisions on water resources. This study, demonstrates the application of SWAT model for streamflow simulation in an experimental basin with daily and hourly rainfall observations...
Article
Full-text available
In this paper, the development of the conceptual and groundwater flow model for the coastal aquifer system of the alluvial plain of River Nestos (N. Greece), that suffers from seawater intrusion due to over-pumping for irrigation, is analyzed. The study area is a typical semi-arid hydrogeologic environment, composed of a multi-layer granular aquife...
Article
Full-text available
The views and perceptions of the civil protection community have a central position in any risk management process or initiative, and are crucial to its success. However, knowledge of the views and perceptions of officials, and what affects them remains limited in the current literature. This work uses questionnaires to explore the views of civil p...
Article
Full-text available
This paper demonstrates the application of a recently developed free and open-source GIS-integrated hydrochemical–hydrogeological analysis tool (named AkvaGIS) for the management and interpretation of hydrogeological data with respect to a coastal aquifer system. The aforementioned tool is composed of a geospatial database implemented in Spatialite...
Article
Full-text available
Because of the spatial nature of groundwater-related data and their time component, effective groundwater management requires the application of methods pertaining to the Information and Communication Technologies sector, such as spatial data management and distributed numerical modelling. The objective of this paper is to demonstrate the effective...
Conference Paper
Full-text available
MARSOL project (Demonstrating Managed Aquifer Recharge as a Solution to Water Scarcity and Drought) has taken place since 2014 to 2017 within EC FP7 call with GA 619120. In the final part of the project, first row members put together the conclusions from their personal point of view and after three years of intense research. All these statements h...
Article
Full-text available
Advanced sensing technologies, combined with wireless sensor networks, have already demonstrated their value in monitoring urban water systems, where management is rather centralized within water utility organizations. Environmental water resources, characterized by more diverse stakeholders and overlapping management responsibilities of different...
Article
FREEWAT is a free and open source QGIS-integrated platform, developed to simulate several hydrological processes by combining the capabilities of GIS for geo-processing and post-processing tools with several codes of the well-known USGS MODFLOW ‘family’. FREEWAT platform was applied for the groundwater flow simulation of a coastal aquifer system, l...
Article
Full-text available
Un-managed surface and groundwater exploitation in coastal areas usually leads to deterioration of such sensitive ecosystems by means of water resources degradation and/or increased salinity. The coastal partof Marathon is a typical Mediterranean hydro-environment that hosts a naturally occurring coastal wetland linked to a typical coastal and toda...
Article
Full-text available
Chloride concentration and salinity tend to vary spatially in depth within the unsaturated zone, according to the local hydrologic conditions; and therefore are widely used as naturally occurring environmental tracers. In this study, undisturbed material from the unsaturated zone was collected at regular intervals of 50 cm down to a maximum depth o...
Article
Full-text available
The management of groundwater resources in coastal environments within the Mediterranean basin has become of paramount importance, especially in the light of global changes. A typical example of such a hydrosystem is the Lavrio basin in Greece. This research site involves two aquifer types—granular and karstic formations—that are hydraulically inte...
Conference Paper
Full-text available
The impact of mining activities on water resources within mined areas has certainly been a field where several studies have been conducted; yet sound quantitative approaches on such problems are mostly under-investigated in the initial steps of the planning, as the exploitation has not been started. In the present study, a groundwater flow model is...
Article
Full-text available
This paper presents the updated vulnerability assessment of Xilagani - Imeros aquifer system in the coastal plain region of Rhodope Prefecture, NE Greece, in the framework of the groundwater management in the region. Information regarding the geological and geomorphological environment, as well as data concerning the hydrologic and hydrogeological...
Article
Full-text available
Sound groundwater resources management is a matter of paramount importance in Circum-Mediterranean, for the ecologic status of the underlying aquifer systems. Freshwater resources in Greece are identified within all types of aquifer formations, however two distinct types are the ones that draw the attention of the scientific and the engineering com...
Article
Full-text available
Groundwater resources assessment has resulted in development of models that help identify the vulnerable zones. This paper presents a GIS-based hydrogeological index, named GALDIT, aiming at the assessment of aquifer vulnerability to seawater intrusion in Atalanti coastal aquifer, Central-Eastern Greece. The above acronym is formed from the most im...
Article
Full-text available
ion of groundwater resources in the coastal aquifer system of Argolis is investigated since the late 1950’s. The increasing water demands due to the agricultural development of the area (mainly citrus trees) during the last years, in combination with the touristic growth, has led to the overexploitation of groundwater resources of the coastal aquif...
Conference Paper
Full-text available
FREEWAT is an open source and public domain GIS integrated modelling environment for the simulation of water quantity and quality in surface water and groundwater with an integrated water management and planning module. It involves the integration of: (i) Observation-Analysis Tool (OAT) that combines a number of time-series processing functionaliti...
Article
Managed Aquifer Recharge is a wide-spread well-established groundwater engineering method which is largely seen as sound and sustainable solution to water scarcity hydrologically sensitive areas, such as the Circum Mediterranean. The process of site selection for the installation of a MAR facility is of paramount importance for the feasibility and...
Conference Paper
Full-text available
Determining the hydrogeochemical processes has always been a challenge for scientists. The aim of this work is the study of the principal hydrogeochemical processes controlling groundwater quality in the Marathon coastal plain, Greece, with emphasis on the origin of the solutes. Various physicochemical parameters and major ions of twenty-five groun...
Conference Paper
This paper presents the updated vulnerability assessment of Xilagani - Imeros aquifer system in the coastal plain region of Rhodope Prefecture, NE Greece, in the framework of the groundwater management in the region. Information regarding the geological and geomorphological environment, as well as data concerning the hydrologic and hydrogeological...
Article
Full-text available
This paper deals with the hydrogeological study of the evolution of groundwater salinisation - degradation at the eastern Nestos River Delta. Relevant field works including in-situ measurements of groundwater level, pH, Specific Electrical Conductivity (SEC) and temperature took place in the years 2008 and 2009. Groundwater samples were also collec...
Article
Full-text available
Managed Aquifer Recharge is a wide-spread well-established groundwater engineering method which is largely seen as an alternative potential major source for water and this conclusion becomes even more pronounced in semi-arid and/or arid areas, such as the Mediterranean Basin. The process of site selection for the installation of a MAR facility is o...
Conference Paper
Full-text available
Groundwater resources assessment has resulted in development of models that help identify the vulnerable zones. This paper presents a GIS-based hydrogeological index, named GALDIT, aiming at the assessment of aquifer vulnerability to seawater intrusion in Atalanti coastal aquifer, Central-Eastern Greece. The above acronym is formed from the most im...
Conference Paper
Sound groundwater resources management is a matter of paramount importance in Circum-Mediterranean, for the ecologic status of the underlying aquifer systems. Freshwater resources in Greece are identified within all types of aquifer formations, however two distinct types are the ones that draw the attention of the scientific and the engineering com...
Article
Precise measurements of the downward movement of precipitation through the unsaturated zone, as well as return flow of moisture to the atmosphere via evaporation, have always been challenging in regard to in-situ monitoring techniques. This study investigates the profile of volumetric water-content fluctuations within the unsaturated zone through a...
Chapter
In arid regions like the Arabian Peninsula, available water resources are essentially restricted to groundwater, requiring a detailed understanding of the local and regional hydrogeological conditions and water budgets. In the framework of the IWAS initiative, the 1.8 × 106 km2 large sedimentary Upper Mega Aquifer of the Arabian Peninsula was chose...
Article
This paper contributes to the investigation of the unsaturated zone, through the application of combined field and lab techniques. The results show that direct push methods, which are considered ideal for multilevel sampling of undisturbed soil in the unsaturated zone, proved to be effective also for the consequent extraction of the pore water for...
Conference Paper
In this paper, the application of the framework DPSIR is presented in Nea Peramos, Kavala, coastal surface plain and aquifer system. The procedure included the use of previous relevant hydrological, hydrogeological and management studies, regarding the study area. The development of the framework DPSIR, recognizing and visualizing in a simplified m...
Conference Paper
A tailored geophysical investigation was designed to provide useful information in two of the activities/priorities of the Lavrion Technological and Cultural Park (LTCP): a) identification of optimal location for the construction of an advanced Soil-Aquifer-System (SAT) which will be used to monitor geo-purification processes within the unsaturated...
Article
The research investigated boron variability in space and time, using 450 groundwater samples from 75 representative wells in the Safwan–Zubair area of Basra district, South Iraq, collected monthly from January to June 2000, with also 75 soil samples from selected farms in the same area. Minimum and maximum values of boron concentrations range from...
Article
Groundwater resources of karst aquifers within Circum-Mediterranean are a vital natural resource, which have been exploited since the dawn of the Mediterranean civilization. In Greece, carbonate formations are thought to be one of the most important sources for various water uses, that are vital for the country’s economy and development, that is ag...
Article
This paper presents the study of the impact of precipitation changes on alluvial aquifer systems in Xanthi Prefecture plain region, Greece. Two study areas were investigated, taking into account several hydrological and hydrogeological data for a time period of 23 years (1989-2011) measured and elaborated in the framework of the hydrogeological con...
Article
Processes such as urbanization, agricultural development and industrialization have led to increasing demand of groundwater resources resulting in pollution threats to groundwater in different ways, either as contaminant loads on the ground surface, or as seawater intrusion due to overexploitation of wells in the coastal zone. Two groundwater vulne...
Conference Paper
Full-text available
Groundwater within coastal aquifers is considered a very sensitive natural resource since its quantity and quality is threatened by anthropogenic activities as well as global and climate changes. The major environmental hazard with respect to coastal aquifers is the phenomenon of seawater intrusion, which is even more pronounced in the Mediterranea...
Article
Full-text available
A reconnaissance geophysical survey is a starting task of a multitasking collaboration to detect all hydrogeological (extent of salinization), stratigraphical, geological features of Thoriko valley in order to reconstruct the environment in ancient times as well as to interpret the position of the various archaeological monuments existing in the ar...
Article
Full-text available
This paper analyses land degradation phenomena at the SE part of R. Nestos Delta, Greece. The work includes geological, hydrological and hydrogeological data interpretation in the study area, including field and laboratory measurements and soil samples analyses during 2007, 2008 and 2009. The study also involved the correlation of certain soil para...
Article
Groundwater within coastal aquifers is considered a very sensitive natural resource since its quantity and quality is threatened by anthropogenic activities as well as global and climate changes. The major environmental hazard with respect to coastal aquifers is the phenomenon of seawater intrusion, and is more pronounced in the Mediterranean basin...
Article
More than 5,000 years before today, the Dilmun culture was developed on the island of Bahrain, with important trading activities which were taking place during the antiquity. This blossom of civilization and development was most probably due to-among others-the existence of the well-known Dilmun springs. According to the Gilgamesh epic, it was Enki...
Conference Paper
Full-text available
Southern Europe and the Mediterranean region are facing the challenge of managing its water resources under conditions of increasing scarcity and concerns about water quality. Already, the availability of fresh water in sufficient quality and quantity is one of the major factors limiting socio-economic development. Innovative water management strat...
Chapter
Seawater intrusion is a widely occurring environmental problem, which concerns the majority of the coastal aquifers in the world, having large negative impacts - from an economic, developmental, environmental as well as social point of view - on the coastal local communities. The fact that almost 40% of the world's population lives within a distanc...
Conference Paper
Full-text available
Managed Aquifer Recharge is a wide-spread well-established groundwater engineering method which is largely seen as an alternative potential major source for water and this conclusion becomes even more pronounced in semi-arid and/or arid areas, such as the Mediterranean Basin. The process of site selection for the installation of a MAR facility is o...
Conference Paper
This study focuses on the engineering design of a Soil-Aquifer Treatment (SAT) system for the artificial recharge of the coastal aquifer system of River Nestos eastern delta area, as a method to countermeasure seawater intrusion and groundwater/soil salinization. The design of such a groundwater engineering project recharging effluent from the near...
Article
The necessity for accurate determination of groundwater recharge is an important issue for the “smart mining” of groundwater resources, especially in hydrologically sensitive regions. Different techniques and methods have been widely reported in literature, and isotope hydrology has found to be one of the major fields of the study. This paper prese...
Conference Paper
Full-text available
The Mediterranean region is one of the most imperilled regions in the world concerning present and future water scarcity. The region is delicately positioned at the crossroads between East and West, interlinking Europe, Asia and Africa. Societal and economic changes causing population growth, industrialisation and urbanisation lead to significant i...
Article
River Evros is a transboundary river flowing through Bulgaria, Greece and Turkey and coincides with the borderline among them for a considerable part of its length in the downstream part of its basin. River Evros is historically engaged to a long series of serious and devastating flood events with high socio-economical costs and environmental impac...
Article
Full-text available
Management of groundwater resources involves the allocation of groundwater supplies and water quality to competing water demands and uses. The resource allocation problem is characterized by conflicting objectives and complex hydrologic and environmental constraints, especially in coastal aquifers. The development of mathematical simulation models...
Article
Full-text available
This paper contributes to the investigation of the unsaturated zone, through the application of combined field and lab techniques. The results show that direct push methods, which are considered ideal for multilevel sampling of undisturbed soil in the unsaturated zone, proved to be effective also for the consequent extraction of the pore water for...
Conference Paper
Full-text available
According to the latest IPCC projections, the Circum-Mediterranean region will be particularly affected by Global and Climate Change. These changes include population growth, increases in food, water and energy demands, changes in land use patterns and urbanization/industrialization, while at the same time, the renewable water resources in the regi...
Article
Full-text available
Sperchios river basin covers an area of 2116 km2, with an average altitude of approximately 810 m, while the river is recharged by many streams of permanent and periodic flow. The high gradients which are present within approximately 2/3 of the total length of the river course form a rather mountainous topography -streamy, with crucial flooding pea...
Article
Full-text available
As concluded in the relevant UN Convention in 1994, desertification has affected large areas within the European Mediterranean coastal regions and is threatening even larger territories. Desertification as a means of land degradation can be resulted from a series of factors including climatic changes and anthropogenic activities; while appears more...