TY - JOUR AU - Szijártó, Márk AU - Galsa, Attila AU - Czauner, Brigitta AU - Erőss, Anita AU - Tóth, Ádám AU - Mádlné Szőnyi, Judit TI - Numerical investigation of groundwater aging and thermal processes in confined-unconfined basins with asymmetric flow patterns: The Buda Thermal Karst, Hungary JF - HYDROGEOLOGY JOURNAL J2 - HYDROGEOL J PY - 2025 SP - 1 SN - 1431-2174 DO - 10.1007/s10040-025-02908-0 UR - https://m2.mtmt.hu/api/publication/36189883 ID - 36189883 AB - Groundwater temperature and age are crucial proxy data that play a fundamental role in understanding regional-scale groundwater flow systems and managing drinking and geothermal water resources. To investigate groundwater flow as well as heat and age mass transport processes in a complex hydrogeological system with deep carbonate sequences and adjoining sedimentary basins (DCSBs), numerical simulations were carried out in two-dimensional synthetic and two- and three-dimensional field-based conceptual environments. The simulations carried out for the Buda Thermal Karst (BTK), Hungary, revealed that the increasing asymmetry in the water table and the appearance of DCSB-type heterogeneity could affect the transition from advection-dominated to conduction- and diffusion-controlled transport processes in the models. However, simultaneously, both effects significantly influence the intensity of groundwater flow. Thermal buoyancy was superimposed on the water table-controlled forced convection (mixed convection), causing significant age mass accumulations in the closed convection cells. To quantify and track the changes in physical processes in the DCSB-type system, the simultaneous use of monitoring parameters calculated in the different parts of the model domain (e.g., unconfined vs confined), contours of groundwater age and temperature, and histograms of normalized groundwater age are presented. The numerical results from the preliminary three-dimensional model were compared to the 14 C observation data in the BTK. The groundwater age calculated in the model was of the same order of magnitude as the results of 14 C dating from samples taken at different depths in the unconfined and confined parts, and from the deeper mixing zone of the BTK. LA - English DB - MTMT ER - TY - CONF AU - Simon, Szilvia AU - Czauner, Brigitta AU - Szijártó, Márk AU - Erhardt, Ildikó AU - Gyuris, Ferenc AU - Hoffman, István AU - Ádám, Györfi AU - Ignacio, Cazcarro AU - Jessica, Lillquist AU - Mádlné Szőnyi, Judit ED - European, Geosciences Union General Assembly TI - Nature-Based Managed Aquifer Recharge solutions for mitigating water shortage at Danube-Tisza Interfluve, Hungary T2 - EGU General Assembly 2025 C1 - Bécs PY - 2025 DO - 10.5194/egusphere-egu25-19516 UR - https://m2.mtmt.hu/api/publication/36114388 ID - 36114388 LA - English DB - MTMT ER - TY - JOUR AU - Czauner, Brigitta AU - Simon, Szilvia AU - Mádlné Szőnyi, Judit TI - How to consider groundwater flow systems in the Earth's Critical Zone? – Demonstration in the Central Pannonian Basin, Hungary JF - JOURNAL OF HYDROLOGY: REGIONAL STUDIES J2 - J HYDROL-REG STUD VL - 53 PY - 2024 PG - 26 SN - 2214-5818 DO - 10.1016/j.ejrh.2024.101833 UR - https://m2.mtmt.hu/api/publication/34874660 ID - 34874660 N1 - Funding Agency and Grant Number: National Multidisciplinary Laboratory for Climate Change [RRF-2.3.1-21-2022-00014] Funding text: We thank for the thorough reviews and constructive comments of three anonymous Reviewers improving the quality of the original manuscript. The research was supported by the National Multidisciplinary Laboratory for Climate Change, RRF-2.3.1-21-2022-00014 project. AB - Study region Central Pannonian Basin, Hungary. Study focus Critical Zone (CZ) Science generally focuses on the soil and weathered bedrock in a few or tens of meters depth, thus influence of deeper groundwater on the CZ is understudied. Here we aim to introduce a hydrogeological methodology that can separate normal and abnormal pressure regimes and determine the groundwater flow pattern to characterize the connection of different groundwater flow systems to the CZ. Basin-scale evaluation of about 5500 measured hydraulic data were carried out by p(z) and h(z) profiles, tomographic maps and hydraulic cross sections. New hydrological insights for the Region Three flow domains were separated and characterized. Namely, i) the uppermost topography-driven flow systems, which penetrate only a few hundred meters, ii) a deep overpressured regime below 1600–2100 m depth, which drives fluids upward; and iii) a newly identified transition zone between the former two, which gains its energy from overpressure dissipation and contains non-renewable water resources. Topography-driven flow systems and discharge areas of the transition zone, where its upwelling saline water contributes to surface salinization, are parts of the CZ. Discharge areas of the transition zone cover about 50% of the Great Hungarian Plain. The overpressured system can only influence the CZ through the transition zone. The approach and methodology can be used in any terrestrial sedimentary basin where a deep overpressured regime exists. LA - English DB - MTMT ER - TY - JOUR AU - Czauner, Brigitta AU - Adonya, Romario Albert AU - Márton, Béla TI - Groundwater Flow Controlled Migration of Dissolved Microbial Gas in the Eastern Hungarian Pannonian Basin JF - GEOLOGICAL SOCIETY SPECIAL PUBLICATIONS J2 - GEOL SOC SPEC PUBL VL - 555 PY - 2024 IS - 1 SN - 0305-8719 DO - 10.1144/SP555-2023-186 UR - https://m2.mtmt.hu/api/publication/35320518 ID - 35320518 AB - Formation of commercial microbial gas accumulations requires specific migration and accumulation conditions which can be effectively provided by groundwater flow systems. Namely, if microbial methane can be gathered and transported in aqueous solution over large lateral distances, great amount of free gas can be exsolved where flows turn upward causing a decrease in solubility. Based on this concept and the flow pattern of regional scale topography-driven groundwater flow systems, the present study built a simplistic 2D model in MS Excel including a methane solubility database with 32000 data. The model can calculate the required flow pathway length to saturate groundwater with methane, the amount of free gas that can be released in a potential accumulation zone, and the necessary time interval for the whole process. Application of the model was demonstrated based on the geological and hydrogeological conditions of a study area in the Central Pannonian Basin (Hungary) focusing on the Hajdúszoboszló gas field. In light of the upscaled results of the 2D model, the known microbial gas accumulations of the study area could be charged according to the model. In addition, parameter sensitivity analysis also provided valuable insights into the complex mechanisms of microbial gas migration. LA - English DB - MTMT ER - TY - JOUR AU - Czauner, Brigitta AU - Szijártó, Márk AU - Sztanó, Orsolya AU - Ben Mahrez, Hana AU - Molson, John AU - Oláh, Soma AU - Mádlné Szőnyi, Judit TI - Re-interpreting renewable and non-renewable water resources in the over-pressured Pannonian Basin JF - SCIENTIFIC REPORTS J2 - SCI REP VL - 14 PY - 2024 IS - 1 PG - 16 SN - 2045-2322 DO - 10.1038/s41598-024-76076-8 UR - https://m2.mtmt.hu/api/publication/35473091 ID - 35473091 N1 - József and Erzsébet Tóth Endowed Hydrogeology Chair, Department of Geology, Institute of Geography and Earth Sciences, Eötvös Loránd University (ELTE), Budapest, Hungary József and Erzsébet Tóth Endowed Hydrogeology Chair, Department of Geophysics and Space Science, Institute of Geography and Earth Sciences, Eötvös Loránd University (ELTE), Budapest, Hungary Department of Geology and Geological Engineering, Université Laval, Québec City, Canada Export Date: 29 November 2024 Correspondence Address: Czauner, B.; József and Erzsébet Tóth Endowed Hydrogeology Chair, Hungary; email: czauner.brigitta@ttk.elte.hu LA - English DB - MTMT ER - TY - CONF AU - Mádlné Szőnyi, Judit AU - Czauner, Brigitta AU - Erőss, Anita AU - Szijártó, Márk AU - Tóth, Ádám AU - Trásy-Havril, Tímea AU - Galsa, Attila AU - Kovácsné Bodor, Petra TI - Flow, transport and karstification model of the Buda Thermal Karst, Hungary - theoretical and practical consequences T2 - Eurokarst Abstract book PY - 2024 SP - 1 UR - https://m2.mtmt.hu/api/publication/35076255 ID - 35076255 LA - English DB - MTMT ER - TY - GEN AU - Mádlné Szőnyi, Judit AU - Czauner, Brigitta AU - Trásy-Havril, Tímea AU - Szabó, Zsóka AU - Tóth, Ádám AU - Szijártó, Márk AU - Oláh, Soma AU - Simon, Szilvia TI - Climate change adaptation through groundwater flow understanding - How do we find nature-based MAR solutions? PY - 2024 UR - https://m2.mtmt.hu/api/publication/35533037 ID - 35533037 LA - English DB - MTMT ER - TY - GEN AU - Mádlné Szőnyi, Judit AU - Czauner, Brigitta AU - Szabó, Zsóka AU - Simon, Szilvia AU - Szijártó, Márk AU - Oláh, Soma AU - Trásy-Havril, Tímea AU - Vincze, Miklós TI - Súlyosbodó aszály, csökkenő vízszintek, kényszerű alkalmazkodás - avagy lehet-e újat mondani a hidrogeológus szemszögéből? PY - 2024 UR - https://m2.mtmt.hu/api/publication/35605568 ID - 35605568 LA - Hungarian DB - MTMT ER - TY - CONF AU - Szijártó, Márk AU - Galsa, Attila AU - Czauner, Brigitta AU - Tóth, Ádám AU - Mádlné Szőnyi, Judit TI - Thermal processes and groundwater ageing in the Buda Thermal Karst, Hungary T2 - IAH2024 Davos Book of Abstracts PY - 2024 SP - 106958 UR - https://m2.mtmt.hu/api/publication/35308801 ID - 35308801 LA - English DB - MTMT ER - TY - GEN AU - Oláh, Soma AU - Koszta, Imola AU - Czauner, Brigitta AU - Szabó, Zsóka AU - Simon, Szilvia AU - Szijártó, Márk AU - Tóth, Ádám AU - Erhardt, Ildikó AU - Mádlné Szőnyi, Judit TI - Természetalapú célzott felszínalatti vízutánpótlás PY - 2024 UR - https://m2.mtmt.hu/api/publication/35605546 ID - 35605546 LA - Hungarian DB - MTMT ER -