@inproceedings{MTMT:34751463, title = {Coupled Field and Numerical Analysis of Riverine Macroplastic}, url = {https://m2.mtmt.hu/api/publication/34751463}, author = {Fleit, Gábor and Nagy, T. and Málnás, A.K. and Husztik, D. and Ilcsik, C. and Molnár, A.D. and Gyalai-Korpos, M. and Baranya, Sándor}, booktitle = {40th IAHR World Congress, 2023}, doi = {10.3850/978-90-833476-1-5_iahr40wc-p0815-cd}, unique-id = {34751463}, abstract = {Rivers around the globe have been increasingly exposed to plastic pollution. Rivers function as conveyors in the transport of plastics, from the sources to the oceans. During the transport of macroplastics in rivers, a significant amount is retained temporarily or permanently both in the riverbed or in the floodplain. The dynamics of macroplastics are governed by hydrological variables and river morphology. Moreover, the vegetation, wind, river regulation structures, dams and other kinds of obstacles also play a deterministic role, though, their physical behavior is poorly understood. First, we need to gain a better understanding of the role of river hydromorphology, which can be well supported by numerical modelling approaches combined with suitable field data. In this study, we exploit a three-dimensional computational hydrodynamic model to analyze the trajectories of macroplastics transported by the river flow. As a case study, the Hungarian section of the Bodrog river was selected, which is extremely exposed to macroplastic pollution. The results of the numerical simulations have been further processed with a novel method that accounts for the transient nature of large-scale turbulence. The numerical simulations were complemented with field data, represented by GPS tracking of actual trajectories of PET bottles. For this, a new measurement methodology has been developed which enables realtime mapping as well as the postprocessing of macroplastic transport in rivers. The goal of the study is to introduce these state-of-the-art computational and field measurement methodologies, and to discuss their capabilities, limitations and needs for further developments. © 2023 IAHR – International Association for Hydro-Environment Engineering and Research.}, keywords = {Plastic pollution; hydrodynamic modeling; GPS tagging; riverine macroplastic transport}, year = {2023}, pages = {3423-3430}, orcid-numbers = {Baranya, Sándor/0000-0001-5832-9683} } @article{MTMT:34217398, title = {Benchmarking the Persistence of Active Pharmaceutical Ingredients in River Systems}, url = {https://m2.mtmt.hu/api/publication/34217398}, author = {Honti, Márk and Zsugyel, Márton and Seller, C. and Fenner, K.}, doi = {10.1021/acs.est.3c01627}, journal-iso = {ENVIRON SCI TECHNOL}, journal = {ENVIRONMENTAL SCIENCE & TECHNOLOGY}, volume = {57}, unique-id = {34217398}, issn = {0013-936X}, year = {2023}, eissn = {1520-5851}, pages = {14684-14693}, orcid-numbers = {Honti, Márk/0000-0003-1743-9573; Zsugyel, Márton/0000-0002-6476-5542} } @article{MTMT:34192844, title = {Folyó-hullámtér konnektivitás értékelése kétdimenziós hidrodinamikai modellezés alapján}, url = {https://m2.mtmt.hu/api/publication/34192844}, author = {Füstös, Vivien and Erős, Tibor and Józsa, János}, doi = {10.59258/hk.12331}, journal-iso = {HIDROL KOZL}, journal = {HIDROLÓGIAI KÖZLÖNY}, volume = {103}, unique-id = {34192844}, issn = {0018-1323}, abstract = {A Gemenci-erdő és Béda-Karapancsa területek hullámterei nagy kiterjedésük okán (is) kiemelt természeti értéket képviselnek. A Duna és a mellékágak mederszintjei között az elmúlt időszak süllyedési és feltöltődési folyamatai nyomán egyre nő a különbség, ami beavatkozás nélkül súlyos ökológiai következményeket vetít előre. Egy átfogó morfodinamikai kutatás keretében célul tűztük ki a jelen állapot felmérését, majd erre alapozva javaslatot teszünk egy hosszútávon fenntartható állapotra. A kutatás köztes lépésében ismertetjük a hidrodinamikai modellek első eredményeit, példát hozunk a keresztirányú átjárhatóság (laterális konnektivitás) értékelésére. Bemutatjuk az árvízi kockázatkezelésből ismert vízmélység-vízsebesség alapú besorolási rendszert, amely jelen alkalmazásában jól megfeleltethető a szubjektív besoroláson alapuló potamális osztályozás típusainak. A modell a további, részletes terepi felmérések adatain alapulóan finomításra szorul. Azonban a bemutatott módszertan segíthet a jelen állapot értékelésében és fontos információval szolgál jövőbeni hatásvizsgálatok alapozásához, mind hidrodinamikai, mind ökológiai vonatkozásban.}, year = {2023}, eissn = {2939-8495}, pages = {21-32}, orcid-numbers = {Füstös, Vivien/0009-0000-1886-5254; Erős, Tibor/0000-0002-2252-3115; Józsa, János/0000-0001-7119-7697} } @CONFERENCE{MTMT:34125076, title = {Study of morphodynamic change caused by wing dams at large spatio-temporal scale}, url = {https://m2.mtmt.hu/api/publication/34125076}, author = {Török, Gergely Tihamér and Parker, Gary}, booktitle = {EGU General Assembly 2023: Abstracts}, doi = {10.5194/egusphere-egu23-10815}, unique-id = {34125076}, year = {2023}, orcid-numbers = {Török, Gergely Tihamér/0000-0002-5456-9599} } @CONFERENCE{MTMT:34125064, title = {Impact assessment of river regulations of the past century using 1D morphodynamic modeling on the Upper Hungarian Danube}, url = {https://m2.mtmt.hu/api/publication/34125064}, author = {Nyiri, Emese and Török, Gergely Tihamér and Baranya, Sándor}, booktitle = {EGU General Assembly 2023: Abstracts}, doi = {10.5194/egusphere-egu23-16014}, unique-id = {34125064}, year = {2023}, orcid-numbers = {Török, Gergely Tihamér/0000-0002-5456-9599} } @CONFERENCE{MTMT:34125031, title = {The investigation of morphodynamic processes of a Hungarian Danube section}, url = {https://m2.mtmt.hu/api/publication/34125031}, author = {Török, Gergely Tihamér and Sándor, Baranya and Gary, Parker}, booktitle = {International conference on transboundary catchment erosion and pollution problems}, unique-id = {34125031}, year = {2023}, pages = {15-15}, orcid-numbers = {Török, Gergely Tihamér/0000-0002-5456-9599} } @inproceedings{MTMT:34125001, title = {Folyószabályozási művek morfodinamikai hatásvizsgálata a magyarországi Felső-Dunán}, url = {https://m2.mtmt.hu/api/publication/34125001}, author = {Nyiri, Emese and Török, Gergely Tihamér and Baranya, Sándor}, booktitle = {Magyar Hidrológiai Társaság XL. Országos Vándorgyűlése}, unique-id = {34125001}, year = {2023}, orcid-numbers = {Török, Gergely Tihamér/0000-0002-5456-9599} } @CONFERENCE{MTMT:34113115, title = {Eutrophication potential of the stream network of the Danube Basin}, url = {https://m2.mtmt.hu/api/publication/34113115}, author = {Nagy, Eszter Dóra and Honti, Márk and Istvánovics, Vera and Önder, Gulbeyaz and Nusret, Karakaya and Fatih, Evrendilek}, booktitle = {Tackling Present & Future Environmenta Challenges of a European Riverscape: CONFERENCE BOOK: 44TH IAD CONFERENCE}, unique-id = {34113115}, year = {2023}, pages = {-}, orcid-numbers = {Nagy, Eszter Dóra/0000-0002-6235-3499; Honti, Márk/0000-0003-1743-9573} } @article{MTMT:34085491, title = {Interaction between depth variation and turbulent diffusion in depth-averaged vorticity equations}, url = {https://m2.mtmt.hu/api/publication/34085491}, author = {Sándor, Balázs and Torma, Péter and Szabó, K. Gábor and Kalmár-Nagy, Tamás}, doi = {10.1007/s00162-023-00665-y}, journal-iso = {THEOR COMP FLUID DYN}, journal = {THEORETICAL AND COMPUTATIONAL FLUID DYNAMICS}, volume = {37}, unique-id = {34085491}, issn = {0935-4964}, year = {2023}, eissn = {1432-2250}, pages = {681-706}, orcid-numbers = {Torma, Péter/0000-0001-9282-6931; Szabó, K. Gábor/0000-0001-7145-1608; Kalmár-Nagy, Tamás/0000-0003-1374-2620} } @article{MTMT:34069683, title = {Vorticity and bathymetry effects on spiral streamlines}, url = {https://m2.mtmt.hu/api/publication/34069683}, author = {Sándor, Balázs and Kalmár-Nagy, Tamás}, doi = {10.1016/j.ijnonlinmec.2023.104457}, journal-iso = {INT J NONLINEAR MECH}, journal = {INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS}, volume = {156}, unique-id = {34069683}, issn = {0020-7462}, year = {2023}, eissn = {1878-5638}, orcid-numbers = {Kalmár-Nagy, Tamás/0000-0003-1374-2620} }