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In the alluvial plain of the river Meuse, in the area of Jupille-sur-Meuse in Liège, the construction of a short-tunnel is foreseen, at the intersection between Avenue Georges Truffaut and Avenue of Jupille.
For this reason, this Master Thesis work focuses on the numerical simulation of the alluvial aquifer behaviour by establishing a groundwater flow model of the concerning area. The model is carried out with the use of GMS-MODFLOW, using the finite difference technique to conceptualize the reality.
The aim is to investigate whether the presence of the foreseen short-tunnel modifies the natural groundwater flow in the aquifer and if it could lead to possible consequences on the pumping activity of the Jupiler brewery located not far and which strongly affects the piezometric levels. 
Different scenarios will be simulated, according to the different construction approaches that may be performed for the short-tunnel during the construction phase and at the end of the construction phase. 
The flow budget concerning the needed withdrawals from the excavation area to guarantee a dry and safe work condition is also studied. In this way, it is possible to detect the influence in choosing the dimension of the cut-off walls used for the excavation. If the walls reach the bedrock (here considered as impervious) the groundwater is totally or partially blocked by the walls, and then the dewatering wells (during the construction phase) and the drainage system (at the end of the construction phase) can pump water only inside the zone enclosed by the barriers.
Furthermore, the sensitivity analysis on the conductance value between the river and the aquifer and then between the drainage system and the aquifer is performed.
Lastly, this area may be a potential site for the development of geothermal open systems, thanks to the geological and hydrogeological properties of the alluvial aquifer. In this Master thesis work, the opportunity will be taken to use also the model in order to investigate the influence of a doublet with a pumping well and injection well. Different scenarios will be simulated to investigate the alluvial aquifer behaviour and also to assess the influence on the pumping wells of the Jupiler brewery. The study of those scenarios serves to lay the foundation for further analysis in the exploitation of the site in the field of geothermal energy.

groundwater modelling, modflow, conceptual model, influence of civil construction in the alluvial aquifer --- Ingénierie, informatique & technologie > Géologie, ingénierie du pétrole & des mines

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Water scarcity is a critical issue for agriculture, and, hence, efficient management and conservation practices for agricultural water use are essential for adapting to and mitigating the impacts of current and future discrepancy between water supplies and water demands. This Special Issue focuses on “Agricultural Water Conservation: Tools, Strategies, and Practices”, which aims to bring together a collection of recent cutting-edge research and advancements in agricultural water conservation. The Special Issue intends to give a broad overview focusing on on-farm water conservation practices, advanced irrigation tools and water technologies, and the best management practices and strategies for efficient water use in agriculture.

Research. --- Biology. --- Technology. --- Engineering. --- Agriculture. --- irrigation --- groundwater --- alluvial aquifer --- water conservation adoption --- row crops --- Mississippi Delta --- precision agriculture --- Lower Mississippi River Valley --- clogging --- drip irrigation --- emitter --- hydrocyclone --- digestate liquid fraction --- wastewater --- salinity --- environments --- AquaCrop model --- water productivity --- scenarios --- tolerant --- Colorado River Basin --- drought --- irrigation management strategy --- water deficit --- optimum water use --- forage --- BEARS --- bushland --- climate --- evapotranspiration --- groundwater management --- irrigation water management --- Ogallala aquifer region --- remote sensing --- lysimeter ET assessment --- water-use efficiency --- analytical formula --- efficient design --- application efficiency --- gravity irrigation --- solar MajiPump --- water and crop productivity --- small-scale irrigation --- conservation agriculture --- Ethiopia --- sensible and latent heat fluxes --- surface renewal method --- tea plantation --- eddy covariance --- squash --- partial root drying --- water use efficiency --- soil mulch --- growing seasons --- gas exchange --- fruit quality --- Asparagus officinalis L. --- cultivars --- spears yield --- sandy soil --- water requirements --- IWUE --- autonomous landscape irrigation --- Hargreaves and Samani evapotranspiration model --- water conservation --- smart controller --- n/a

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Stable and radioactive isotopes in water are powerful tools in the tracking of the path of water molecules through the whole water cycle. In the last decade, a considerable number of studies have been published on the use of water isotopes, and their number is ever-growing. The main reason is the development of new measurement techniques (i.e., laser absorption spectroscopy) that allow measurements of stable isotope ratios at ever-higher resolutions. Therefore, this compilation of papers has been published to address the current state-of-the-art water isotope methods, applications, and interpretations of hydrological processes, and to contribute to the rapidly growing repository of isotope data, which is important for future water resource management. We are pleased to present here a book with new findings in thirteen original research papers and one review paper issued in the Water MDPI Special Issue (SI) “Use of Water Isotopes in Hydrological Processes”. The authors report the use of water isotopes in hydrological processes worldwide, including studies at both local and regional scales related to either precipitation dynamics or to different applications of water isotopes in combination with other hydrochemical parameters in investigations of surface water, snowmelt, soil water, groundwater and xylem water to identify the hydrological and geochemical processes.

Research & information: general --- precipitation --- stable isotope ratios --- local meteoric water line --- amount-weighted mean --- linear regression --- confidence --- prediction and generalized intervals --- stable isotopes D and 18O --- moisture source --- temperature effect --- precipitation amount effect --- regionalization --- China --- oxygen isotopes --- sulfur isotopes --- isotopic composition of water --- bacterial sulfate reduction --- sulfide oxidation --- atmospheric sulfate --- peatland --- unconfined aquifer --- mineralization of organic matter --- isotopic techniques --- water isotopic signature --- 3H- and 14C-dating --- saltwater intrusion --- Red River’s delta --- Vietnam --- Sutri Dhaka --- Chandra Basin --- Western Himalaya --- hydrograph separation --- stable water isotope --- specific ablation --- stable isotopes --- HYSPLIT model --- MWL validation --- karstic springs --- spatial variations --- Naqu River basin --- Qinghai–Tibet Plateau --- stable water isotopes --- hydrogen --- oxygen --- soil water --- fine root system --- groundwater --- isotope hydrology --- stable nitrate isotopes --- Zagreb --- Croatia --- 2H/1H and 18O/16O --- deuterium excess --- δ18O–temperature relation --- tritium --- self-organizing map --- radon --- major ions --- alluvial fan --- paddy rice field --- deuterium and oxygen-18 --- hydrogeological conceptual model --- alluvial aquifer --- Varaždin area --- δ2H --- inverse modeling --- vadose zone --- sensitivity analysis --- soil hydraulic parameters estimation --- groundwater recharge --- d-excess --- elevation effect --- altitude effect --- continental effect --- Slovenia --- Hungary --- water cycle --- measurement traceability --- precipitation (rain and snow) --- surface water --- water management --- networks and data bases --- statistical evaluation --- precipitation --- stable isotope ratios --- local meteoric water line --- amount-weighted mean --- linear regression --- confidence --- prediction and generalized intervals --- stable isotopes D and 18O --- moisture source --- temperature effect --- precipitation amount effect --- regionalization --- China --- oxygen isotopes --- sulfur isotopes --- isotopic composition of water --- bacterial sulfate reduction --- sulfide oxidation --- atmospheric sulfate --- peatland --- unconfined aquifer --- mineralization of organic matter --- isotopic techniques --- water isotopic signature --- 3H- and 14C-dating --- saltwater intrusion --- Red River’s delta --- Vietnam --- Sutri Dhaka --- Chandra Basin --- Western Himalaya --- hydrograph separation --- stable water isotope --- specific ablation --- stable isotopes --- HYSPLIT model --- MWL validation --- karstic springs --- spatial variations --- Naqu River basin --- Qinghai–Tibet Plateau --- stable water isotopes --- hydrogen --- oxygen --- soil water --- fine root system --- groundwater --- isotope hydrology --- stable nitrate isotopes --- Zagreb --- Croatia --- 2H/1H and 18O/16O --- deuterium excess --- δ18O–temperature relation --- tritium --- self-organizing map --- radon --- major ions --- alluvial fan --- paddy rice field --- deuterium and oxygen-18 --- hydrogeological conceptual model --- alluvial aquifer --- Varaždin area --- δ2H --- inverse modeling --- vadose zone --- sensitivity analysis --- soil hydraulic parameters estimation --- groundwater recharge --- d-excess --- elevation effect --- altitude effect --- continental effect --- Slovenia --- Hungary --- water cycle --- measurement traceability --- precipitation (rain and snow) --- surface water --- water management --- networks and data bases --- statistical evaluation

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Stable and radioactive isotopes in water are powerful tools in the tracking of the path of water molecules through the whole water cycle. In the last decade, a considerable number of studies have been published on the use of water isotopes, and their number is ever-growing. The main reason is the development of new measurement techniques (i.e., laser absorption spectroscopy) that allow measurements of stable isotope ratios at ever-higher resolutions. Therefore, this compilation of papers has been published to address the current state-of-the-art water isotope methods, applications, and interpretations of hydrological processes, and to contribute to the rapidly growing repository of isotope data, which is important for future water resource management. We are pleased to present here a book with new findings in thirteen original research papers and one review paper issued in the Water MDPI Special Issue (SI) “Use of Water Isotopes in Hydrological Processes”. The authors report the use of water isotopes in hydrological processes worldwide, including studies at both local and regional scales related to either precipitation dynamics or to different applications of water isotopes in combination with other hydrochemical parameters in investigations of surface water, snowmelt, soil water, groundwater and xylem water to identify the hydrological and geochemical processes.

precipitation --- stable isotope ratios --- local meteoric water line --- amount-weighted mean --- linear regression --- confidence --- prediction and generalized intervals --- stable isotopes D and 18O --- moisture source --- temperature effect --- precipitation amount effect --- regionalization --- China --- oxygen isotopes --- sulfur isotopes --- isotopic composition of water --- bacterial sulfate reduction --- sulfide oxidation --- atmospheric sulfate --- peatland --- unconfined aquifer --- mineralization of organic matter --- isotopic techniques --- water isotopic signature --- 3H- and 14C-dating --- saltwater intrusion --- Red River’s delta --- Vietnam --- Sutri Dhaka --- Chandra Basin --- Western Himalaya --- hydrograph separation --- stable water isotope --- specific ablation --- stable isotopes --- HYSPLIT model --- MWL validation --- karstic springs --- spatial variations --- Naqu River basin --- Qinghai–Tibet Plateau --- stable water isotopes --- hydrogen --- oxygen --- soil water --- fine root system --- groundwater --- isotope hydrology --- stable nitrate isotopes --- Zagreb --- Croatia --- 2H/1H and 18O/16O --- deuterium excess --- δ18O–temperature relation --- tritium --- self-organizing map --- radon --- major ions --- alluvial fan --- paddy rice field --- deuterium and oxygen-18 --- hydrogeological conceptual model --- alluvial aquifer --- Varaždin area --- δ2H --- inverse modeling --- vadose zone --- sensitivity analysis --- soil hydraulic parameters estimation --- groundwater recharge --- d-excess --- elevation effect --- altitude effect --- continental effect --- Slovenia --- Hungary --- water cycle --- measurement traceability --- precipitation (rain and snow) --- surface water --- water management --- networks and data bases --- statistical evaluation