@CONFERENCE{MTMT:34752892, title = {Sulfur isotope compositions of the NEEM ice core reveal glacial-interglacial and millennial-scale variability in the sources of sulfate aerosols}, url = {https://m2.mtmt.hu/api/publication/34752892}, author = {Pryer, H and Hansson, M and Fischer, H and Rhodes, R and Burke, A and Rae, J and Újvári, Gábor and Turchyn, A and Mulvaney, R and Wolff, E}, booktitle = {EGU General Assembly 2024 abstract kötet}, doi = {10.5194/egusphere-egu24-21625}, unique-id = {34752892}, year = {2024}, orcid-numbers = {Újvári, Gábor/0000-0002-2816-6155} } @CONFERENCE{MTMT:34752869, title = {Soil carbonate Δ47 paleotemperatures across the Paleocene-Eocene boundary: the Esplugafreda terrestrial record, Spain}, url = {https://m2.mtmt.hu/api/publication/34752869}, author = {Újvári, Gábor and Kele, Sándor and Rinyu, László and Payros, A and Pujalte, V and Schmitz, B and Bernasconi, S. M}, booktitle = {EGU General Assembly 2024 abstract kötet}, doi = {10.5194/egusphere-egu24-10082}, unique-id = {34752869}, year = {2024}, orcid-numbers = {Újvári, Gábor/0000-0002-2816-6155; Kele, Sándor/0000-0002-8607-7636} } @CONFERENCE{MTMT:34752860, title = {From outcrop to spectrum}, url = {https://m2.mtmt.hu/api/publication/34752860}, author = {Lünsdorf, NK and Lünsdorf, JO and Újvári, Gábor and Dunkl, I and Wolfram, L and Hobrecht, A and Laake, L and von Eynatten, H}, booktitle = {EGU General Assembly 2024 abstract kötet}, doi = {10.5194/egusphere-egu24-17622}, unique-id = {34752860}, year = {2024}, orcid-numbers = {Újvári, Gábor/0000-0002-2816-6155} } @CONFERENCE{MTMT:34752558, title = {Clumped isotope temperatures from secondary carbonates in loess: comparability of different preparation methods of snail shells and earthworm biospheroids}, url = {https://m2.mtmt.hu/api/publication/34752558}, author = {Czébely, Andrea and Túri, Marianna and Kiss, D and Újvári, Gábor and Kertész, Gréta Titanilla and Rinyu, László}, booktitle = {EGU General Assembly 2024 abstract kötet}, doi = {10.5194/egusphere-egu24-16279}, unique-id = {34752558}, year = {2024}, orcid-numbers = {Czébely, Andrea/0000-0002-6439-2977; Újvári, Gábor/0000-0002-2816-6155} } @article{MTMT:34553378, title = {Changes in Atmospheric Dynamics Over Dansgaard‐Oeschger Climate Oscillations Around 40 ka and Their Impact on Europe}, url = {https://m2.mtmt.hu/api/publication/34553378}, author = {Stadelmaier, KH. and Ludwig, P and Pinto, JG. and Újvári, Gábor}, doi = {10.1029/2023JD040247}, journal-iso = {J GEOPHYS RES ATMOS}, journal = {JOURNAL OF GEOPHYSICAL RESEARCH: ATMOSPHERES}, volume = {129}, unique-id = {34553378}, issn = {2169-897X}, abstract = {Dansgaard‐Oeschger (D‐O) climate variability during the last glaciation was first evidenced in ice cores and marine sediments, and is also recorded in various terrestrial paleoclimate archives in Europe. The relative synchronicity across Greenland, the North Atlantic and Europe implies a tight and fast coupling between those regions, most probably effectuated by an atmospheric transmission mechanism. In this study, we investigated the atmospheric changes during Greenland interstadial (GI) and stadial (GS) phases based on regional climate model simulations using two specific periods, GI‐10 and GS‐9 both around 40 ka, as boundary conditions. Our simulations accurately capture the changes in temperature and precipitation as reconstructed by the available proxy data. Moreover, the simulations depict an intensified and southward shifted eddy‐driven jet during the stadial period. Ultimately, this affects the near‐surface circulation toward more southwesterly and cyclonic flow in western Europe during the stadial period, explaining much of the seasonal climate variability recorded by the proxy data, including oxygen isotopes, at the considered proxy sites.}, year = {2024}, eissn = {2169-8996}, orcid-numbers = {Stadelmaier, KH./0000-0003-2023-0797; Ludwig, P/0000-0003-3655-7890; Pinto, JG./0000-0002-8865-1769; Újvári, Gábor/0000-0002-2816-6155} } @CONFERENCE{MTMT:34546131, title = {Clumped isotope temperatures obtained from snail shells and earthworm biospheriods from the Dunaszekcső loess record: comparability and the effect of sample preparation methods}, url = {https://m2.mtmt.hu/api/publication/34546131}, author = {Czébely, A and Túri, M and Kiss, D and Újvári, Gábor and Rinyu, L}, booktitle = {European Society for Isotope Research Meeting XVI (ESIR)}, unique-id = {34546131}, year = {2023}, pages = {26-27}, orcid-numbers = {Újvári, Gábor/0000-0002-2816-6155} } @CONFERENCE{MTMT:34546045, title = {Collecting ‘Big’-data in sedimentary provenance analysis: An optimized workflow from sample preparation to analysis}, url = {https://m2.mtmt.hu/api/publication/34546045}, author = {Lünsdorf, NK and Lünsdorf, JO and Újvári, Gábor and Wolfram, L and Hobrecht, A and Laake, L and von Eynatten, H}, booktitle = {GeoBerlin 2023 Geosciences Beyond Boundaries - Research, Society, Future}, unique-id = {34546045}, year = {2023}, orcid-numbers = {Újvári, Gábor/0000-0002-2816-6155} } @article{MTMT:34431627, title = {From Outcrop to Spectrum—An Automated Approach to Modal Mineralogy of Silt‐Sized Sediment Applied to Central European Loess}, url = {https://m2.mtmt.hu/api/publication/34431627}, author = {Lünsdorf, NK and Lünsdorf, JO and Újvári, Gábor and Dunkl, István and Wolfram, L and Hobrecht, A and Laake, L and von Eynatten, H}, doi = {10.1029/2023JF007364}, journal-iso = {J GEOPHYS RES EARTH SUFR}, journal = {JOURNAL OF GEOPHYSICAL RESEARCH: EARTH SURFACE}, volume = {128}, unique-id = {34431627}, issn = {2169-9003}, abstract = {Provenance information from recent and ancient sedimentary archives is obscured by several factors and for disentangling these intermingled signals, analysis by multiple methods is paramount. In sedimentary provenance analysis (SPA), single‐grain methods determining mineralogy, chemical composition, or radiometric ages are of key importance but are mostly applied to sand‐sized sediments or sedimentary rocks. Finer grained sediments or sedimentary rocks are usually analyzed by whole‐rock geochemical means and seldom by single‐grain methods. Considering the abundance of fine‐grained sedimentary archives, a strong need for single‐grain, multi‐method analyses of silt‐sized sediments is obvious. Thus, we propose a workflow that is optimized for sample throughput and correlative analysis of fine‐grained sediments based on machine learning methods. The feasibility of the workflow is demonstrated by differentiating three Central European loess‐paleosol‐sequences. The increased sample throughput enables access to sedimentary archives at high spatial and/or temporal resolution, which will open up new research pathways in SPA of silt‐sized sediments.}, year = {2023}, eissn = {2169-9011}, orcid-numbers = {Lünsdorf, NK/0000-0002-2738-8469; Újvári, Gábor/0000-0002-2816-6155} } @mastersthesis{MTMT:34398371, title = {Az utolsó glaciális időszak gyors klímaváltozásainak ásványi por ciklust érintő hatásai és visszacsatolásai az észak-atlanti térség és Közép-Európa vonatkozásában}, url = {https://m2.mtmt.hu/api/publication/34398371}, author = {Újvári, Gábor}, unique-id = {34398371}, year = {2023}, orcid-numbers = {Újvári, Gábor/0000-0002-2816-6155} } @CONFERENCE{MTMT:34161316, title = {KAPCSOLT IZOTÓP TERMOMETRIA: MINTAELŐKÉSZÍTÉSI MÓDSZEREK ÉS MÉRÉSI EREDMÉNYEK ÖSSZEHASONLÍTHATÓSÁGA A DUNASZEKCSŐI LÖSZ-PALEOTALAJ SZELVÉNY CSIGAHÉJ- ÉS BIOSZFEROID-KARBONÁT VIZSGÁLATAI ALAPJÁN}, url = {https://m2.mtmt.hu/api/publication/34161316}, author = {Czébely, Andrea and Túri, Marianna and Kiss, D and Újvári, Gábor and Rinyu, László}, booktitle = {13. Kőzettani és Geokémiai Vándorgyűlés}, unique-id = {34161316}, year = {2023}, pages = {3-4}, orcid-numbers = {Czébely, Andrea/0000-0002-6439-2977; Újvári, Gábor/0000-0002-2816-6155} }