WorldCat Identities

Chalikakis, Konstantinos

Overview
Works: 9 works in 11 publications in 2 languages and 43 library holdings
Roles: Other, Author, Contributor, Opponent, Thesis advisor
Publication Timeline
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Most widely held works by Konstantinos Chalikakis
L'eau à découvert by Luc Abbadie( )

2 editions published in 2017 in French and held by 29 WorldCat member libraries worldwide

Indispensable à la régulation du climat, au développement de la vie sur Terre, au maintien des écosystèmes, aux populations, au développement de l'agriculture, de l'industrie comme à la production d'énergie, l'eau est un élément vital. Il convient donc, dans un contexte de changement global, d'analyser dans toute sa diversité la place et le rôle de l'eau et de se donner ainsi les moyens de mieux la préserver. Autour de cet enjeu qui engage toute l'humanité, Agathe Euzen, Catherine Jeandel et Rémy Mosseri ont réuni près de cent cinquante contributions, visant à apporter un éclairage sur chacun des domaines et des approches que couvre cette thématique. Quelle est l'origine de l'eau? Son rapport avec l'apparition de la vie? Quel rôle a-t-elle joué dans l'histoire de la planète et dans le développement de la vie végétale, animale et humaine? Quel est son cycle? Quelles sont ses propriétés chimiques? Comment les sociétés se sont-elles emparées de cet élément précieux? Allons-nous manquer d'eau? L'eau est-elle source de conflits? Comment l'eau est-elle gérée? Comment recycle-t-on une eau polluée? Quels sont les risques pour la santé mondiale? Quels sont les grands enjeux liés à l'eau au xxie siècle? Comprendre et proposer des solutions à ces défis majeurs est l'intention de cet ouvrage
Application de méthodes géophysiques pour la reconnaissance et la protection de ressources en eau dans les milieux karstiques by Konstantinos Chalikakis( Book )

2 editions published in 2006 in French and held by 3 WorldCat member libraries worldwide

Les méthodes d'investigation actuellement proposées concernant la reconnaissance et la protection des aquifères en milieu karstique ne font que rarement appel aux mesures géophysiques. Le but des présents travaux de recherche est de démontrer que la combinaison de diverses méthodes géophysiques (TDEM, FDEM, RMP) permet de tirer du sous-sol l'information nécessaire à caractériser, en partie et à différentes échelles spatiales, la géométrie des réservoirs et la distribution des zones de haute perméabilité dans les milieux karstiques. Trois sites expérimentaux, caractéristiques de régions karstiques observées autour du bassin Méditerranéen, ont été choisis. Le site de Loussoi (nord-est du Péloponnèse - Grèce), le site de Poumeyssen (Lot - France) et le site de Paralia Agios Andreas (est du Péloponnèse - Grèce). Des techniques géophysiques adaptées au contexte géologique et aux questions hydrogéologiques ont été sélectionnées et utilisées. Des résultats nouveaux ont été obtenus dans trois domaines : (1) la connaissance géologique des sites étudiés, (2) des développements spécifiques des techniques géophysiques et (3) la définition d'une approche méthodologique d'application des méthodes géophysiques à l'étude des karsts
Hydrochemical constraints between the karst Tabular Middle Atlas Causses and the Saïs basin (Morocco): implications of groundwater circulation by Hélène Miche( )

1 edition published in 2017 in English and held by 2 WorldCat member libraries worldwide

The role of porous matrix in water flow regulation within a karst unsaturated zone: an integrated hydrogeophysical approach by Simon D Carrière( )

1 edition published in 2016 in English and held by 2 WorldCat member libraries worldwide

Sustainable groundwater resources exploration and management in a complex geological setting as part of a humanitarian project (Mahafaly Plateau, Madagascar) by Simon Damien Carrière( )

1 edition published in 2018 in English and held by 2 WorldCat member libraries worldwide

Caractérisation et spatialisation de la recharge des hydrosystèmes karstiques : Application à l'aquifère de Fontaine de Vaucluse, France by Chloé Ollivier( )

1 edition published in 2019 in French and held by 1 WorldCat member library worldwide

The recharge of karst hydrosystems depends on climatic conditions, vegetation transpiration, soil evaporation, soil properties and karst heterogeneity. Recharging therefore depends on many factors that vary in time and space, and we wish to characterize and locate variations in the recharge of karst hydrosystems on a regional scale. The recharge can be diffuse or concentrated depending on the heterogeneity of the karst, which limits both measurement and modelling possibilities. Although evapotranspiration strongly influences the recharge of karst, the assessment of its spatiotemporal dynamics is often simplified. Calibration of the hydrogeological model parameters can compensate errors in estimating evapotranspiration and recharge and without external constraints, validation of the simulations remains difficult. In order to know the spatial and temporal distribution of karst recharge we propose a semi-distributed conceptual model of the hydrosystem (KaRaMel) associated with a semi-distributed conceptual model of evapotranspiration (SimpKcET). The tools developed are applied to the vast hydrosystem of the Fontaine de Vaucluse (South-East France). The results show that (1) the use of vegetation indices, provided by remote sensing, provides a realistic estimate of the spatiotemporal dynamics of evapotranspiration for all types of vegetation; (2) the spatial distribution of the parameters of the semi-distributed model can easily be constrained with information on soils (soil available water capacity) and on the hydrosystem (intrinsic vulnerability); (4) A toolbox for geographic information systems has been developed to facilitate the mapping of the intrinsic vulnerability of karst aquifers using the PaPRIKa method; (3) KaRaMel + SimpKcET provides both the spatial and temporal distribution of stocks and a reliable estimate of the aquifer discharges ; (4) daily, monthly and annual recharges change considerably in space and time, the most contributing areas varying from one year to the next; (5) the discharges of the Fontaine de Vaucluse are sensitive to the spatial distribution of the recharge
Etude hydrogéophysique de la structure et du fonctionnement de la zone non saturée du karst by Simon Damien Carriere( Book )

1 edition published in 2014 in French and held by 1 WorldCat member library worldwide

Karst Unstatured Zone can play a major hydrodynamic role but water flow and storage mechanisms remains poorly known. Can hydrogeophysics help assessing the spatial and temporal waterstorage variation in UZ and improve understanding karst UZ functioning ? In 2011 and 2012, various tools have been employed on an experimental site above the low noise underground research laboratory of Rustrel (LSBB) within the Fontaine de Vaucluse catchment, in order to study the hydrogeological structure and functioning. These investigations were conducted using a methodology including four phases : (1) Preliminary study of geological and hydrogeological contexte, (2) Geophysical characterization of the geological features, (3) Hydrogeophysical characterization of the hydrodynamic functioning, (4) 3D geomodeling of the karst UZ. The acquired results highligth the potential of hydrogeophysical investigation in karst media and validated the proposed methology. These investigations allowed a fast identification of geological structures which may play a major role in water flow regulation. Seasonal variations in water storage were measured until several tens of meters deep within the UZ. Hydrogeophysical monitoring allowed imaging spatial and temporal heterogeneityof recharge; Finally, the geomodeling is essential within the proposed methology to synthesize site knowledge, finalize the conceptual functioning schema and lay the foundation for future work of hydrodynamicmodeling in karst UZ
Caractérisation des aquifères de socle pour l'amélioration de la productivité des forages d'hydraulique villageoise dans le bassin versant du Bandama blanc amont (Nord de la Côte d'Ivoire) by Moussa Ouedraogo( )

1 edition published in 2016 in French and held by 1 WorldCat member library worldwide

The upstream watershed of White Bandama, north of Ivory Coast, is located on a fissured hard-rock, composed of granites and schists, and is a perennial aquifer for populations' water supply. The upstream watershed of White Bandama, northern Ivory Coast, is located on a hard-rock aquifer which geometry and potential as an hydrogeological reserve is not yet well characterized. Insecurity of rural populations is partly due to lack of drinking water as well as still inadequate number of water supply points. A significant number of failures was observed when performing wells and boreholes for groundwater, one of the causes is a weak scientific knowledge on the environment.This study is to improve knowledge on the hydrodynamic behavior of the hard rock reservoir (geometry of aquifers, hydrodynamic parameters, recharge, availability of the resource) in order to drill perennial boreholes.The multidisciplinary methodological approach integrates hydrogeophysics, hydrogeology, geology, chemistry methods. It is to develop new techniques and appropriate exploration tools to refine the characterization of fissured hard-rock to better constrain the operation of sites, especially in terms of stability of pomped yield.To study the hard-rock aquifer of upstream watershed of White Bandama, we coupled electromagnetic measurements to lithological data to refine the geometry of the aquifer and to better constrain the choice for future drilling locations. This study presents a new hydrogeophysical approach using the multifrequency electromagnetic device PROMIS® to improve knowledge of resources on hard-rock aquifer, at the local or regional level.Our geophysical data are interpreted with multi-layer models consistent with the discontinuities observed in lithology logs and the geology of the site. This method is effecient to improve the characterization of the hard-rock aquifer, and the results showed good agreement between the soundings (1D), the resistivity cross-section (2D), drillings and geological structures.Results allow to precise the local thicknesses of the 3 main units of our study area down to 50 m, being from top to down, saprolite, a fissured-rock zone and the rock substratum. The fissured-rock zone constitutes the main aquifer unit under pressure, interesting target for productive water wells. Its thickness ranges from 15 to 30 m. A detailed knowledge of the local aquifer geometry constitutes the first and crucial step before going further into a complete hydrogeological study
 
Audience Level
0
Audience Level
1
  General Special  
Audience level: 0.86 (from 0.81 for L'eau à d ... to 0.99 for Caractéri ...)

Alternative Names
Konstantinos Chalikakis wetenschapper

Languages