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Guillot, de Suduiraut M.-Charlotte. "Conditions chimiques et modélisation de la biodégradation des solvants chlorés dans les nappes souterraines". Bordeaux 3, 2005. http://www.theses.fr/2005BOR30064.
Pełny tekst źródłaDatry, Thibault. "Urbanisation et qualité des nappes phréatiques : réponses des écosystèmes aquatiques souterrains aux pratiques d'infiltration d'eau pluviale". Lyon 1, 2003. http://www.theses.fr/2003LYO10181.
Pełny tekst źródłaClaudeville, Xavier. "Mouvements d'eau dans les sols et sous-sols selon les grands types de terrains, et possibilités de contrôler les apports aux nappes". Bordeaux 3, 1992. http://www.theses.fr/1992BOR30006.
Pełny tekst źródłaThis research has a practical object, the validation of an analysis computer program, usable with any existing data, and applied on daily data of 85 catchments of 0. 2 to 7000 skm (but of 150 skm for the most), with three catchments in average per french geological unit; thereby it is also a survey about the spatial variability of the hydrological cycle elements on the geographical scale. The most important method elaborated for this purpose is a computer analysis of a two inputs- three outputs black box, applied on the rainfalls and groundwater inflow for the inputs, and the actual evapotranspiration, groundwater outflow, and runoff for the outputs. The overland flow, soil moisture, inputs into the capillary soil networks, water-table inputs by piston effect or solw transit flow, and capillary rise, are acomputed. The available in-situ measures as neutron probe soil moisture, piezometer elevations and isotopic surveys, are correlated with these computer data for five catchments. In the second part, the 80 catchments of the Dordogne basin are studied by this program, for testing the analysis sensitiveness, the coherence of the computed data, and the explation power of the different hydrogeological systems revelated by this analysis. The hydraulic heads are roughly well correlated with the storavity volumes estimated by morphometric methods. New methods for changing infiltration rates are proposed in the third part
Haroux, Christian. "Biogéochimie du manganèse dans les nappes aquifères libres du domaine rhodanien". Lyon 1, 1986. http://www.theses.fr/1986LYO11708.
Pełny tekst źródłaMestres, Jean-Paul. "Contribution à l'étude du traitement informatique des données d'analyse : applications dans le domaine des analyses oenologiques et au calcul du mouvement des polluants dans les nappes". Montpellier 1, 1988. http://www.theses.fr/1988MON13516.
Pełny tekst źródłaBuluku, Ekwakwa Nsie-Ley Emvan. "Influence de l'agriculture sur la qualité des eaux souterraines : cas des nappes phréatiques du Parc naturel régional du Lubéron (Vaucluse, France)". Aix-Marseille 1, 1995. http://www.theses.fr/1995AIX11017.
Pełny tekst źródłaFabre, Bernard. "Influence de la nature des sols et de la matière organique sur l'adsorption des pesticides : conséquences pour la pollution des nappes souterraines". Poitiers, 1990. http://www.theses.fr/1990POIT2334.
Pełny tekst źródłaBouragba, Latifa. "Etude de la recharge artificielle des nappes en zone semi-aride : application au bassin du Souss-Maroc". Thesis, Besançon, 2011. http://www.theses.fr/2011BESA2046.
Pełny tekst źródłaThe Souss valley is bounded to the North by the High Atlas, to the South by the Anti-Atlasand to the East by the Siroua crystalline massif. The main geological formations arecalcareous marls of the Plio-Quaternary, the Turonian limestones that underlie them, and thefossil bed of River Souss formed by sands, sandstones and gravels from high permeabilityalluvium.The Souss aquifer is the most significant aquifer in southern Morocco, highly exploited by anagricultural exporting activity. Groundwater overexploitation induced a decreases ofpiezometric heads. Since 1970, water demand far exceeds renewable groundwater resources(balance defecit: 185 Mm3 in 1976, 358 Mm3 in 1998, and 228 Mm3 in 2003).The mean role of the Aoulouz dam is the artificial recharge of the Souss plain by release ofwater stored during rainy periods in the plain.In semi-arid areas, estimating recharge is often difficult, the spatial and temporal variabilitiesof recharge are generally high, and processes are varied.This work has enabled to characterize the impact of artificial recharge and to estimate therenewal of water in the aquifer.Water releases from Aoulouz dam has permitted an increase of the piezometric level on thehigh plain, about 85% of the water released are unfiltered in the first 80 Km between Aoulouzand Taroudant cities. However, the general water level decline goes on.The geochemical facies is mainly calcium bicarbonate type (dissolution of limestone), andlocally calcium sulphate type (evaporites of the High Atlas). Surface waters are a calcium andmagnesium bicarbonate types, acquired during their flow through limestones and dolomitesoutcrops.[...]
DIAW, ELHADJIBAMBA. "Modelisation du transfert d'eau en milieu poreux non sature : application a l'etude de la recharge des nappes d'eaux souterraines en region soudano-sahelienne". Université Louis Pasteur (Strasbourg) (1971-2008), 1996. http://www.theses.fr/1996STR13204.
Pełny tekst źródłaPelletier, Antoine. "Nappes et rivières : la piézométrie peut-elle améliorer la modélisation des étiages des cours d'eau ?" Electronic Thesis or Diss., Sorbonne université, 2021. http://www.theses.fr/2021SORUS529.
Pełny tekst źródłaReliable forecasting tools of river low-flows are necessary to adapt to droughts intensified by climate change. Among hydrological processes in catchments, those involving aquifers are crucial for droughts: indeed, aquifers have the ability to store water on the long run, which gives them a role in sustaining streamflow when the other components of the catchment do not contribute to streamflow any more. We explored the integration of groundwater level data as a possible way to improve low-flow modelling. First, we gathered a set of 107 French catchments, each of them being associated with one or several piezometers, which are representative of the catchment hydrogeological context. Then, we explored multiyear dynamics of streamflow and groundwater level time series, using two methods: hydrograph separation and study of data yearly statistics. Finally, we developed and validated a lumped conceptual hydrological model able to simulate both streamflow and groundwater level. We evaluated this model as a low-flow forecasting tool and we tried to improve its performance by assimilating observed data into the model. This work is an inter-disciplinary approach of river low-flows
Voisin, Jérémy. "Influence des pratiques de recharge des aquifères par des eaux pluviales sur les communautés microbiennes des nappes phréatiques". Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE1113/document.
Pełny tekst źródłaIn urban area, managed aquifer recharge (MAR) systems raises hydrological connectivity between surface and groundwater. These infiltration practices are the cause of many disturbances in groundwaters (e.g. increase of thermal variations, decrease of dissolved oxygen or enrichment in organic matter) but associated consequences on microbial compartment remains unclear. The main aim of the thesis is to determine the effects of stormwater runoff infiltration on microbial communities of groundwater, in terms of abundance, activities and bacterial diversity. Based on environmental changes associated to MAR practices and bacterial community analyses, a fundamental question is to assess the importance of dispersal (e.g. transfers) and selection by abiotic factors (e.g. nutrients availability) on groundwater communities assemblage. This study is based on field experiments with two complementary strategies of sampling: an active one (i.e. groundwater sampling) and a passive one (incubation of artificial substrate). Communities’ description was made by next-generation sequencing (i.e. Illumina MiSeq) of rrs gene. The results showed a significant influence of MAR practices on microbial communities. Growth, activities and diversity of groundwater micro-organisms were mainly stimulated by biodegradable dissolved organic carbon enrichment associated to MAR practices. Nonetheless, this impact was reduced in systems where the vadose zone is thick (> 10 m) and acts as a physical, chemical and biological filter between the infiltration basin and the aquifer. Low similarities between bacterial communities of infiltration waters and bacterial communities of groundwaters reveal that vadose zone is effective on the retention of bacteria in studied systems. To conclude, this thesis constitutes the first major study that aimed to quantify microbial compartment response to disturbances caused by MAR practices in urban area. It also opens new perspectives on assessment tool for groundwater quality
Petri, Benoît. "Formation et exhumation des granulites permiennes : établir les conditions pré-rift et déterminer l'histoire d'exhumation syn-rift". Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAH012/document.
Pełny tekst źródłaThis study aims to unravel tectonic, magmatic and metamorphic processes active at midcrustal levels from the Permian to the exhumation of the rocks during the Mesozoic riftings by focusing on a Permian gabbro in the Austroalpine nappes (N–Italy, SE–Switzerland). The evolution of the Sondalo gabbro, emplaced in the Campo unit, is examined by combining structural geology, magmatic and metamorphic petrology, and geochronology. The results of this study bring constrains on (1) the thermal and mechanical relationship between the pluton and the host rock during its emplacement in the middle crust, (2) the mechanisms of mafic magmas ascent through the continental crust and (3) the exhumation and cooling history of the Campo unit and the overlying Grosina unit during the formation of the Adriatic rifted margin
Foulquier, Arnaud. "Écologie fonctionnelle dans les nappes phréatiques : liens entre flux de matière organique, activité et diversité biologiques". Phd thesis, Université Claude Bernard - Lyon I, 2009. http://tel.archives-ouvertes.fr/tel-00587833.
Pełny tekst źródłaLevy, Nelly. "La pollution des eaux souterraines par les décharges contrôlées de résidus urbains. Bilan actuel. Solutions et perspectives". Paris 5, 1990. http://www.theses.fr/1990PA05P088.
Pełny tekst źródłaChtaini, Abdessadek. "Etude hydrogéologique du Sahel des Doukkala (Maroc)". Phd thesis, Grenoble 1, 1987. http://tel.archives-ouvertes.fr/tel-00785556.
Pełny tekst źródłaLe, Lay Hugo. "Caractérisation des échanges nappe-rivière par mesure distribuée de température par fibre optique : limites et applications aux faibles exfiltrations de nappe". Thesis, Tours, 2019. http://www.theses.fr/2019TOUR4025.
Pełny tekst źródłaChevron, Florence. "Dénitrification biologique d'une nappe phréatique polluée par des composés azotés d'origine industrielle : expérimentations en laboratoire sur les cinétiques, le métabolisme et les apports de nutriments /". Orléans : Éd. BRGM, 1996. http://catalogue.bnf.fr/ark:/12148/cb36167079k.
Pełny tekst źródłaBasabe-Rodriguez, Pedro Pablo. "Typologie des eaux souterraines du Flysch de la Nappe tectonique du Niesen (Préalpes suisses) /". Lausanne : EPFL, 1993. http://library.epfl.ch/theses/?display=detail&nr=1073.
Pełny tekst źródłaMary, Jean-Pierre. "Thermohydraulique d'aquiferes a double porosite : application au stockage de chaleur". Toulouse, INSA, 1987. http://www.theses.fr/1987ISAT0026.
Pełny tekst źródłaDjoret, Daïra. "Etude de la recharge de la nappe du Chari Baguirmi (Tchad) par les méthodes chimiques et isotopiques". Avignon, 2000. http://www.theses.fr/2000AVIG0028.
Pełny tekst źródłaNjitchoua, Roger. "Hydrochimie et géochimie isotopique des eaux souterraines de la nappe des "Grès de Garoua" (Nord-Cameroun)". Centre scientifique d'Orsay (Essonne), 1991. http://www.theses.fr/1991PA112401.
Pełny tekst źródłaDarmendrail, Dominique. "Filtration géochimique de métaux lors de leur transfert d'une rivière vers une nappe alluviale : applications à la nappe des alluvions du Rhône (69) et de la Deule (59)". Bordeaux 3, 1987. http://www.theses.fr/1987BOR30200.
Pełny tekst źródłaDoussan, Claude. "Transferts rivière-nappe et effet filtre des berges : application aux transferts de l'azote /". [Fontainebleau] : Ecole des mines de Paris, Centre d'informatique géologique, 1994. http://catalogue.bnf.fr/ark:/12148/cb357233007.
Pełny tekst źródłaDeirmendjian, Loris. "Transfert de carbone le long du continuum végétation-sol-nappe-rivière-atmosphère dans le bassin de la Leyre (Landes de gascogne, SO France)". Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0319/document.
Pełny tekst źródłaInland waters are a major component of the global carbon cycle. These systems receive a significant amount of carbon from aquatic and terrestrial sources. A part of this carbon is degassed in the atmosphere while another is exported to the oceans. We characterize the concentrations and transfers of all carbon forms at the groundwater-stream-atmosphere interface, in a temperate, forested and sandy lowland watershed, where hydrology occurs in majority through drainage of groundwater. We monitored contrasting study site representative of the diversity of the ecosystem, from groundwater to river mouth, with different proportion of land use. DOC is exported in majority during high flow periods whereas the same amount of DIC is exported between high and base flow periods.Terrestrial carbon that originates from soils forests is the major source of carbon in surface waters but only 3% of the NEE is exported. Land use modifies locally the different forms of carbon in streams but at the basin scale forests predominate. We quantify the degassing ofCO2 based on fairly well balanced isotopic mass balance. About 75% of the total degassing occurs in first and second order streams, which behave as hotspots for CO2 degassing. This work contributes to a better definition of the role of streams and rivers in the global carboncycle. Specifically, this work enhances understanding on the proportion of CO2 pumped byan ecosystem and then exported to the river system, as well as the fate of this carbon downstream
Cyr, Isabel. "Exploitation des données RSO de RADARSAT pour la cartographie de la vulnérabilité de la nappe souterraine". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ38058.pdf.
Pełny tekst źródłaDu, Mingxuan. "Modélisation intégrée des écoulements souterrains et des échanges nappe-rivière dans la basse vallée du Var". Thesis, Université Côte d'Azur (ComUE), 2016. http://www.theses.fr/2016AZUR4107/document.
Pełny tekst źródłaGroundwater modeling with deterministic model is a complicated process, especially in complex aquiferswhere the quantity and the quality of the measuted data arc not satisfying. The unconfined alluvialaquifet is the main water resource in the lower valley of Vat river, Ftench Riviera, but it faces a thteat ofshortage and pollution. Despite numerous previous studies, the dynamics of the gtoundwater flow in thealluvial aquifer and the characteristics of the rivet-aquifer exchanges ¿re s':ll partially unknown.Therefore the local u/ater management service requires a decision support system PSS) based onnumerical models to ensure a better groundwater management. A hydraulic model is set up withFEFLO!ø software by considedng ptecþitation, evâpotranspiration, gtoundwatet exftacdon and rivetaquiferexchanges. The non-documented groundwater exttaction fot agticultural use and the transferrates in the dverbed along the river have been calibtated. The model has been validated with asimulation of 7266 days. The model is applied to simulate the scenarios of flood and drought events, thepollution events in the unconfined aquifer in the valley and the seawater inrusion in the estuary of Yarriver. These case studies contributes to increase the knowledge of the aquifet. A fust conception of theDSS tool is presented as the last example of model application. A coupling interface is developed thanksto aJava which enables an automatic exchange of data between the groundwater flow model and thesurface wâter flow model built with MII(E2ltr}'/. More tests should be done to validate the couplinginterface
Schneider, Vincent. "Apports de l'hydrodynamique et de la géochimie à la caractérisation des nappes de l'Oligocène et de l'Eocène et à la reconnaissance de leurs relations actuelles et passées : origine de la dégradation de la nappe de l'Oligocène (sud-ouest du bassin parisien)". Paris 11, 2005. http://www.theses.fr/2005PA112367.
Pełny tekst źródłaGroundwater of the Paris basin gathers a huge water resource, largely exploited for water supply, mainly from the shallow unconfined aquifer of the Fontainebleau Sands. The objective of this work is to identify sources and processes involved in the degradation of the quality of the Fontainebleau Sands aquifer since the last decades. This requires a multidisciplinary approach using both hydrogeology, hydrodynamics and isotope hydrochemistry in a complex system where several waterbody may interact. The study area is dominated by urban and agricultural activities. Water-rock interactions are responsible for the groundwater geochemical feature, and concentrations in sulphate are rather high, that constitutes the main aspect of the degradation of the groundwater body. Three sources of contamination are identified: (1) agricultural activities; (2) an upward leakage of water and/or solutes from the Eocene sulphated groundwater body; (3) water-rock interactions with the Fontainebleau sands dark feature, in which pyrite (FeS2) and celestite (SrSO4) have been evidenced. Each geochemical-hydrogeological process is discussed, mainly through the use of sulphates stable isotopes (18O, 34S). It turns out that celestite could only originate from Eocene sulphates, brought by the upward leakage during valleys formation (i. E. From 800 ka). The recent quality degradation of the Oligocene groundwater body originates from the increase of water volumes pumped, inducing a forced renewal of the waters, and favouring the remobilization of a sulphate stock existing at the aquifer basis, in the dark feature
Gourrier, Aline. "Approches hydrodynamique et chimique des écoulements de nappe : le bassin du Dragon". Paris 11, 2006. http://www.theses.fr/2006PA112059.
Pełny tekst źródłaGirard, Pierre. "Techniques isotopiques (15N, 18O) appliquées à l'étude des nappes des altérites et du socle fracture de l'ouest africain : étude de cas : l'ouest du Niger /". Thèse, Chicoutimi : Université du Québec à Chicoutimi, 1993. http://theses.uqac.ca.
Pełny tekst źródłaLe, Bideau Laurent. "Mécanismes de dénitrification de la nappe de l'oxfordien supérieur au droit du site de Beuxes (Vienne)". Poitiers, 1996. http://www.theses.fr/1996POIT2360.
Pełny tekst źródłaFroment, Pascale. "Économie informelle et Italie du Sud : le cas du secteur des cuirs et chaussures à Naples". Paris 1, 1999. http://www.theses.fr/1999PA010630.
Pełny tekst źródłaDoussan, Claude. "Transferts rivière-nappe et effet filtre des berges : application aux transferts de l'azote". Paris, ENMP, 1994. http://www.theses.fr/1994ENMP0469.
Pełny tekst źródłaJabbour, Borhan. "Evaluation du bilan hydrique parcellaire en vue d'une gestion de l'eau : essai de régionalisation et d'application à la gestion durable de la nappe : cas de Beauce". Paris, AgroParisTech, 2008. http://www.theses.fr/2008AGPT0037.
Pełny tekst źródłaSylla, Morciré. "Processus d'alimentation de la nappe phréatique et géochimie des nitrates des eaux souterraines de la presqu'île de Kaloum, Conakry, Guinée". Thesis, University of Ottawa (Canada), 1995. http://hdl.handle.net/10393/10068.
Pełny tekst źródłaBedel, Léa. "Approche isotopique pour tracer la dynamique des éléments dans deux écosystèmes forestiers du plateau lorrain, développés sur des sols polycycliques". Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0074/document.
Pełny tekst źródłaTwo forest ecosystems in Lorraine, France (Clermont-en-Argonne CA and Azerailles AZ) developed on polycyclic soils have a complex functioning due to the presence of two different materials within the soil profile, leading to an abrupt disruption in soil texture. Indeed, they have low exchangeable Ca and Mg stocks in the silty soil upper layers (with a greater poverty in CA than in AZ), and very large stocks in deep clayey layers. These differences in upper soil fertility between the studied sites can be partly explained by a weaker aggregation in CA than in AZ (with aggregates poor in organic matter and clays). The CA soil then holds less nutrients than AZ one, despite higher atmospheric inputs and more rapid mineralization of litter. The richness of the deep soil layers in both sites, cannot be explained by the two conventional inputs i.e. atmospheric deposition and mineral weathering, A third un-expected source was identify using Sr, Ca and Mg isotopes, i.e. a mineralized groundwater table, which allows the CEC recharging of the deep clay layers by simple ion exchange when its invades the subsoil during the winter period. Trees have developed an uptake strategy into these Ca and Mg rich clay layer, to overcome the relative poverty of the upper soil layers. However the consequence of the Mg limititation of the soil upper layers in CA is visible through the increase in the internal Mg-translocation before leaf senescence
Benabderraziq, Hind. "Modalités et processus de la contamination des eaux souterraines : application à la présence du sélénium dans la nappe de la craie (Nord de la France)". Thesis, Lille 1, 2014. http://www.theses.fr/2014LIL10018/document.
Pełny tekst źródłaIn north France, the concentration of selenium in the groundwater of the Turonian-Senonian chalk layers located in the south of Lille (Emmerin, Houplin -Ancoisne , the Ansereuilles and Salome) exceeds drinking-water limit of 10 µg/L and reaches 60 μg/L in some located small areas. The various lithological levels, except the Senonian chalk, contain natural selenium. The maximum measured values stand out in the Ypresian clay layer (4.87 mg/kg), alluvial clays (4.8 mg/kg) and sediments of rivers with important influence of anthropogenic origin (between 2.1 to 15.8 mg/kg). Selenium has a high affinity to the organic material. The soluble/exchangeable fraction is the most mobile selenium one. Strontium isotopes coupled with Ca/Sr and Mg/Sr and strontium isotopes ratios 87Sr/86Sr were used to identify the main groundwater bodies and theirs mixtures. Oxidizing or reducing environment conditions are controlled by the variations in the groundwater level which is influenced by the inter-annual and seasonal changes in the water and pumping process. However, each well field is characterized by its geological and hydro–geochemical conditions. The selenium may be mobilized through seepage (from the top), water levels variations (from the bottom), lateral transfers (interconnections between boreholes due to hydraulic gradients) and mixtures of water from surrounding areas
Denimal, Sophie Tribovillard Nicolas. "Impact des terrils houillers du bassin minier Nord-Pas-de-Calais sur la qualité de la nappe de la craie". [S.l.] : [s.n.], 2001. http://www.univ-lille1.fr/bustl-grisemine/pdf/extheses/50376-2001-247-248.pdf.
Pełny tekst źródłaGaspar, Neto Pascoal. "Les Relations nappe-rivière en milieu urbain : Application à la vallée de la Meurthe à Nancy". Nancy 1, 1992. http://www.theses.fr/1992NAN10381.
Pełny tekst źródłaPinay, Gilles. "Relations sol-nappe dans les bois riverains de la Garonne : étude de dénitrification". Lyon 1, 1986. http://www.theses.fr/1986LYO10096.
Pełny tekst źródłaLouche, Barbara. "Limites littorales de la nappe de la craie dans la région Nord Pas-de Calais : relations eaux souterraines - eaux superficielles - mer". Lille 1, 1996. http://www.theses.fr/1996LIL10194.
Pełny tekst źródłaLefèvre, Émilie. "Étude de la minéralisation de la nappe de la craie sous pressions naturelles et anthropiques : application à la présence de l'azote, du soufre et du nickel dans les eaux souterraines". Lille 1, 2006. https://pepite-depot.univ-lille.fr/RESTREINT/Th_Num/2006/50376_2006_17.pdf.
Pełny tekst źródłaFavreau, Guillaume. "Caractérisation et modélisaton d'une nappe phréatique en hausse au Sahel : dynamique et géochimie de la dépression piézométrique naturelle du kori de Dantiandou (sud-ouest du Niger)". Paris 11, 2000. http://www.theses.fr/2000PA112333.
Pełny tekst źródłaDi-Ruggiero, Jocelyne. "Écologie et physiologie des bactéries réduisant le manganèse : exemple de la nappe alluviale du Rhône, Avignon (Vaucluse)". Lyon 1, 1989. http://www.theses.fr/1989LYO10085.
Pełny tekst źródłaIlly, Valeureux Destin Toukanogo. "Application de la forensique environnementale à la discrimination de sources de pollution en nappe". Electronic Thesis or Diss., Bordeaux 3, 2021. http://www.theses.fr/2021BOR30027.
Pełny tekst źródłaLike countries with a long industrial past, soils and groundwater in France have been heavily contaminated by polluting compounds. On industrial sites, contaminants detected in water can come from several sources making the identification necessary for the assessment of contamination and the establishment of responsibilities for the management of pollution.However, when the contaminated aquifer has a very heterogeneous geological structure, it is impossible to accurately model underground flows and contaminant transport. As a result, it will also be impossible to precisely establish the average composition of a plume of contaminants emitted from a source area from the concentration data and groundwater flows alone. To this end, multidisciplinary approaches are necessary for a better characterization of the extent, age, and origin of contamination in a heterogeneous environment. These approaches combine historical information, measurements of concentrations, stable isotope ratios of contaminants and hydrogeological data, all analyzed using mathematical modeling tools. Such approaches provide the essential elements both for the determination of the risk and for possible legal disputes relating to the contamination.On two industrial sites of the company which co-finances the present research work, very low contamination of chlorinated solvents is regularly detected on drinking and industrial water catchments downstream of the sites. On each of these sites, several past or current activities coexist in the catchment supply basin and can give rise to the same contamination. The concerned aquifers are chalky with a very heterogeneous structure including in places cracks. In addition, the precise origins of the sources of pollution are unknown. Thus, the objective of the thesis is to use the multidisciplinary methods mentioned above to determine the proportion of water coming from each of the potential sources
Laurent, Anne. "La gestion en bien commun des eaux souterraines : La nappe des sables astiens de Valras-Agde (Hérault), une opération pilote en Languedoc-Roussillon". Montpellier 2, 1993. http://www.theses.fr/1993MON20256.
Pełny tekst źródłaBarrez, Frédéric. "Essais de caractérisation hydrochimique verticale de la nappe de la craie dans le secteur minier Carvin-Douai-Hénin Beaumont". Lille 1, 2006. https://pepite-depot.univ-lille.fr/RESTREINT/Th_Num/2006/50376_2006_304.pdf.
Pełny tekst źródłaPollet, Ingrid. "Simulation numérique de la contamination de la nappe par le perchloroéthylène depuis un site industriel en bordure du piémont alsacien". Université Louis Pasteur (Strasbourg) (1971-2008), 2004. https://publication-theses.unistra.fr/restreint/theses_doctorat/2004/POLLET_Ingrid_2004.pdf.
Pełny tekst źródłaA hydrodynamic model of the contaminated aquifer was built to study the groundwater contamination by percholoroethylen in the south west of Strasbourg. The studied domain stretches from piedmont to plain and covers an area of several hundreds of hectares. A relation between fluctuations of hydraulic conditions and piezometric levels was established to reproduce the groundwater behaviour in transient time. Then, dissolved pollutant transport was modelled with one-phase transport numerical model using velocities determined before. Simulations pointed out the influence of hydrodynamic properties of media and of boundaries conditions on the evolution of the dissolved plume. Otherwise, it seems the media description to be refined, particularly by considering a media more heterogeneous and by modelling dissolution of the pollutant in aqueous phase. A several-phases transport numerical model was also used to localise more precisely the pollutant phase in order to reproduce the percholoroethylen concentrations observed. This step is based on an analytical study realised to determine the vertical distribution of residual pollutant from concentrations and velocities profiles measured near the supposed source. This study ends in several heterogeneous sources trapped in the less permeable zones increasing considerably the treatment duration
Aoun, Sebaiti Badra. "Gestion optimisée des ressources en eau d’une nappe côtière : application à la plaine d’Annaba (Nord-est Algérien)". Thesis, Lille 1, 2010. http://www.theses.fr/2010LIL10075/document.
Pełny tekst źródłaThe region of Annaba, situated in the North East of Algeria, contains in its underground water resources that represent a significant enough interest to feed people, water for agriculture and industry. This site is currently undergoing a gradual anthropogenic pressure becomes worrisome. Indeed, the continuous operation of the water has caused deterioration of water quality and negatively influenced the hydrodynamic equilibrium of the aquifer. It has also ensured the emergence of salt wedges even threatening in the short term and exploitation of the water and the proper functioning of wetlands.Based on the analytical results obtained for series of samples of more or less regular intervals, performed on the main measurement networks, we tried to identify key factors influencing the evolution of the physico-chemical water and delineate the advancing salt wedge. In this research, simulation models have proved to be very powerful tools to understand the hydrodynamic functioning of aquifers in the region of Annaba, situated north east of Algeria, taking into account the heterogeneity of environments. They have also highlighted a vulnerability of aquifers in coastal areas where there is inflow of the sea and stream chloride concentration large enough. The negative impacts on groundwater and ecosystems can become catastrophic if nothing is done to curb the problem.Models based on artificial neural networks have emerged as a powerful way to develop predictive relations between the different indicators of the management of water resources in the region. In this context of strong demand for water, only an integrated approach offers the possibility to manage these resources while respecting the natural environment, citizens' interests and those of economic actors. The research meets this need for integration, since the location and evaluation of groundwater resources, to protect their quality, but while evaluating the potential adverse effects. In this research, a new model of integrated management of water has been developed based on the relation of cause and effect addressing the entire cycle of water. Hydrological variables were developed and classified into five categories which are socio-economic constraints of pollution, water quality, impact of human activity and management of urban space and agriculture. The relevant variables were characterized using artificial neural networks, risk assessment on human health and the expert opinion. It has been demonstrated that a combination of practical measures necessary to ensure the sustainable management of water
Hajhouji, Youssef. "Modélisation hydrologique du bassin versant de l'oued Rheraya et sa contribution à la recharge de la nappe du Haouz (bassin du Tensift, Maroc)". Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30257/document.
Pełny tekst źródłaGroundwater recharge is a little known parameter in the water balance. Knowledge of processes and accurate estimation of groundwater recharge is a prerequisite for effective and sustainable management of groundwater resources. In addition, groundwater recharge is considered the most direct parameter by which climate change affects the renewable groundwater resources. The present PhD thesis focuses on the recharge of the alluvial aquifer of the Haouz plain by the floods of the Rheraya wadi (intermittent river), which descends from the High-Atlas Mountains and crosses the southern plain towards the North. This work has two main objectives: (i) simulating the hydrological regime of the Rheraya River whose floods are at the origin of the groundwater recharge, and (ii) Quantifying the groundwater recharge by the floods of the Rheraya in the zone of the High-Atlas piedmont. The runoff modeling of the Rheraya wadi in the High-Atlas (225 km², elevations ranging between 1030 and 4165 m.a.s.l.) takes into account the snow component. For this purpose, the GR4J conceptual and global model was applied over the period 1989- 2009, coupled with the CemaNeige module for semi-distributed snow dynamics. The daily snow coverage simulated by CemaNeige is in good agreement with that extracted from the MODIS snow product in the period 2000-2009 (R² = 0,64). In addition, the simulated daily snow water equivalent is consistent with that measured at the weather station of Oukaimeden (2004-2006, R² = 0,81). Finally, the runoff simulation reproduces quite well the strong seasonal and inter-annual variability. In conclusion, the hydrological regime of the Rheraya wadi is pluvio-nival with an unimodal distribution whose maximum in April is linked with snowmelt. The study of groundwater recharge is carried out through the analysis of the monitoring of groundwater fluctuations in the streambed of the Rheraya wadi, over two hydrological cycles 2014-2015 and 2015-2016.[...]
Petitjean, Lise. "Etude des plages sableuses : Relations entre les vagues, le niveau d'eau, la nappe et la morphologie". Electronic Thesis or Diss., Toulon, 2016. http://www.theses.fr/2016TOUL0016.
Pełny tekst źródłaThis PhD work is part of the general context of littoral dynamic study. The purpose of this workwas to study couplings between surface waves (waves and long waves including infra-gravity waves), sea waterlevel variations and currents, as well as high-frequence water level variations on shoreline and groundwatermovements within sandy beaches. The approach is mostly experimental in-situ.The field campaign ROUSTY201412 allowed the collection of a substantial hydro- morphodynamic dataset,supplying sandy beaches studies in several fields. In particular, it will allow, on a same site, the descriptionof a full winter season under various waves and winds climates, making it a unique dataset in Mediterraneancontext.In this PhD, we are interested in three fields : free surface dynamics, including multi scale relations analysis(waves, water level variations, long waves, wave-setup, ...), currents structure and evolution linked withsurface dynamics, and groundwater circulation within the coastal aquifer and particularly under the swashzone