@article{MTMT:3212802,
	title = {Recently forming stalagmites from the Baradla Cave and their suitability assessment for climate-proxy relationships},
	url = {https://m2.mtmt.hu/api/publication/3212802},
	author = {Demény, Attila and Németh, Alexandra and Kern, Zoltán and Czuppon, György and Molnár, Mihály and Leél-Ossy, S and Óvári, M and Stieber, J},
	doi = {10.1556/24.60.2017.001},
	journal-iso = {CENT EUR GEOL},
	journal = {CENTRAL EUROPEAN GEOLOGY},
	volume = {60},
	unique-id = {3212802},
	issn = {1788-2281},
	keywords = {TEMPERATURE; speleothem; stable isotope compositions; Baradla Cave; Precipitation amount; Actively forming stalagmites},
	year = {2017},
	eissn = {1789-3348},
	pages = {1-34},
	orcid-numbers = {Demény, Attila/0000-0003-0522-9018; Kern, Zoltán/0000-0003-4900-2587; Czuppon, György/0000-0002-7231-6042}
}

@article{MTMT:3158886,
	title = {Formation of amorphous calcium carbonate in caves and its implications for speleothem research},
	url = {https://m2.mtmt.hu/api/publication/3158886},
	author = {Demény, Attila and Németh, Péter and Czuppon, György and Leél-Őssy, Szabolcs and Szabó, Máté Zoltán and Judik, Katalin and Németh, Tibor and Stieber, J},
	doi = {10.1038/srep39602},
	journal-iso = {SCI REP},
	journal = {SCIENTIFIC REPORTS},
	volume = {6},
	unique-id = {3158886},
	issn = {2045-2322},
	year = {2016},
	eissn = {2045-2322},
	orcid-numbers = {Demény, Attila/0000-0003-0522-9018; Németh, Péter/0000-0001-5592-5877; Czuppon, György/0000-0002-7231-6042; Németh, Tibor/0000-0002-1836-6006}
}

@article{MTMT:3042991,
	title = {Recrystallization-induced oxygen isotope changes in inclusion-hosted water of speleothems - Paleoclimatological implications},
	url = {https://m2.mtmt.hu/api/publication/3042991},
	author = {Demény, Attila and Czuppon, György and Kern, Zoltán and Leél-Őssy, Szabolcs and Németh, Alexandra and Szabó, Máté Zoltán and Tóth, Mária and Wu, C-C and Shen, C-C and Molnár, Mihály and Németh, Tibor and Németh, Péter and Óvári, Mihály},
	doi = {10.1016/j.quaint.2015.11.137},
	journal-iso = {QUATERN INT},
	journal = {QUATERNARY INTERNATIONAL},
	volume = {415},
	unique-id = {3042991},
	issn = {1040-6182},
	abstract = {The issue of diagenetic alteration of carbonate deposits in caves (speleothems) has gained increasing importance in recent years, as this process has serious consequences for speleothem-based paleoclimate studies. In this study stable hydrogen and oxygen isotope data of water trapped in fluid inclusions were collected for recently forming stalagmites and flowstones in order to determine how dripwater compositions are reflected and preserved in the inclusion water compositions. Hydrogen isotope compositions were found to reflect dripwater values, whereas the oxygen isotope data were increasingly shifted from the local dripwater compositions with the time elapsed after deposition. The δ18O data are correlated with X-Ray diffraction full width at half maximum values (related to crystal domain size and lattice strain), suggesting that the oxygen isotope shift is related to recrystallization of calcite. Transmission electron microscope analyses detected the presence of nanocrystalline (<50 nm) calcite, whose crystallization to coarser-grained calcite crystals (>200 nm) may have induced re-equilibration between the carbonate and the trapped inclusion water. The Ostwald ripening process provides an explanation for unexpectedly low oxygen isotope compositions in the inclusion water. The detected diagenetic alteration and its isotopic effects should be taken into consideration during sampling strategies and data evaluation as speleothems containing nanocrystalline calcite during their deposition are prone to late-stage oxygen isotope water-carbonate re-equilibration, which may shift the oxygen isotope composition of the inclusion water to more depleted values while the hydrogen isotope composition remains intact. © 2016.},
	keywords = {fluid inclusion; speleothem; diagenesis; Ostwald ripening; Hydrogen and oxygen isotope compositions},
	year = {2016},
	eissn = {1873-4553},
	pages = {25-32},
	orcid-numbers = {Demény, Attila/0000-0003-0522-9018; Czuppon, György/0000-0002-7231-6042; Kern, Zoltán/0000-0003-4900-2587; Németh, Tibor/0000-0002-1836-6006; Németh, Péter/0000-0001-5592-5877}
}

@article{MTMT:2932988,
	title = {Permafrost or seasonal frost? A review of paleoclimate proxies of the last glacial cycle in the East Central European lowlands},
	url = {https://m2.mtmt.hu/api/publication/2932988},
	author = {Ruszkiczay-Rüdiger, Zsófia and Kern, Zoltán},
	doi = {10.1016/j.quaint.2015.07.027},
	journal-iso = {QUATERN INT},
	journal = {QUATERNARY INTERNATIONAL},
	volume = {415},
	unique-id = {2932988},
	issn = {1040-6182},
	abstract = {Our critical revision of the sedimentological characteristics and genetic interpretation of relict periglacial soil deformation features (cryoturbations and sand wedges) suggests that the continuous permafrost zone did not necessarily reached the lowland areas of the Pannonian Basin, as suggested by previous studies. The discontinuous permafrost zone most probably penetrated the north-western part of the study area for a certain period, but most of the lowlands might have been affected only by sporadic/isolated permafrost and/or deep seasonal frost. The re-evaluated climate conditions implied by the periglacial soil structures and other proxies for a periglacial environment of the area do not constrain such a narrow zone of extremely low mean annual air temperature (MAAT) and mean annual precipitation (MAP). The compilation of the climate thresholds suggested by the observed and revised interpretation cryoturbation features and thermal contraction cracks with other paleoclimate proxies converge on 0 +/- 2 degrees C MAAT and 300-490 mm MAP on the lowland areas of the Pannonian Basin during the coldest phase of the last glacial. These values indicate a temperature drop of congruent to 10 +/- 2 C degrees and a precipitation decrease of 30-50% relative to modern conditions. (C) 2015 Elsevier Ltd and INQUA. All rights reserved.},
	year = {2016},
	eissn = {1873-4553},
	pages = {241-252},
	orcid-numbers = {Kern, Zoltán/0000-0003-4900-2587}
}

@article{MTMT:2946649,
	title = {Multivariable cyclone analysis in the Mediterranean region},
	url = {https://m2.mtmt.hu/api/publication/2946649},
	author = {Kelemen, Fanni Dóra and Bartholy, Judit and Pongrácz, Rita},
	journal-iso = {IDŐJÁRÁS},
	journal = {IDŐJÁRÁS / QUARTERLY JOURNAL OF THE HUNGARIAN METEOROLOGICAL SERVICE},
	volume = {119},
	unique-id = {2946649},
	issn = {0324-6329},
	year = {2015},
	eissn = {0324-6329},
	pages = {159-184},
	orcid-numbers = {Bartholy, Judit/0000-0002-3911-7981; Pongrácz, Rita/0000-0001-7591-7989}
}

@article{MTMT:2779728,
	title = {Stable (H, O, C) and noble-gas (He and Ar) isotopic compositions from calcite and fluorite in the Speewah Dome, Kimberley Region, Western Australia: implications for the conditions of crystallization and evidence for the influence of crustal-mantle fluid mixing},
	url = {https://m2.mtmt.hu/api/publication/2779728},
	author = {Czuppon, György and Ramsay, RR and Özgenc, I and Demény, Attila and Gwalani, LG and Rogers, K and Eves, A and Papp, László and Palcsu, László and Berkesi, Márta and Downes, PJ},
	doi = {10.1007/s00710-014-0333-7},
	journal-iso = {MINER PETROL},
	journal = {MINERALOGY AND PETROLOGY},
	volume = {108},
	unique-id = {2779728},
	issn = {0930-0708},
	year = {2014},
	eissn = {1438-1168},
	pages = {759-775},
	orcid-numbers = {Czuppon, György/0000-0002-7231-6042; Demény, Attila/0000-0003-0522-9018; Berkesi, Márta/0000-0003-4380-057X}
}

@article{MTMT:2435335,
	title = {Determination of air moisture source region for precipitation in Hungary},
	url = {https://m2.mtmt.hu/api/publication/2435335},
	author = {Vidnyánszky-Bottyán, Emese and Czuppon, György and Weidinger, Tamás and Haszpra, László and Kármán, Krisztina},
	journal-iso = {CENT EUR GEOL},
	journal = {CENTRAL EUROPEAN GEOLOGY},
	volume = {56},
	unique-id = {2435335},
	issn = {1788-2281},
	year = {2013},
	eissn = {1789-3348},
	pages = {273},
	orcid-numbers = {Czuppon, György/0000-0002-7231-6042; Weidinger, Tamás/0000-0001-7500-6579; Haszpra, László/0000-0002-7747-6475}
}

@article{MTMT:1407743,
	title = {Empirical equations for the temperature dependence of calcite-water oxygen isotope fractionation from 10 to 70 degrees C},
	url = {https://m2.mtmt.hu/api/publication/1407743},
	author = {Demény, Attila and Kele, Sándor and Siklósy, Zoltán},
	doi = {10.1002/rcm.4799},
	journal-iso = {RAPID COMMUN MASS SPECTR},
	journal = {RAPID COMMUNICATIONS IN MASS SPECTROMETRY},
	volume = {24},
	unique-id = {1407743},
	issn = {0951-4198},
	year = {2010},
	eissn = {1097-0231},
	pages = {3521-3526},
	orcid-numbers = {Demény, Attila/0000-0003-0522-9018; Kele, Sándor/0000-0002-8607-7636}
}

@article{MTMT:141295,
	title = {Analyzing the genesis, intensity, and tracks of western Mediterranean cyclones},
	url = {https://m2.mtmt.hu/api/publication/141295},
	author = {Bartholy, Judit and Pongrácz, Rita and Pattantyús-Ábrahám, M},
	doi = {10.1007/s00704-008-0082-9},
	journal-iso = {THEORET APPL CLIMAT},
	journal = {THEORETICAL AND APPLIED CLIMATOLOGY},
	volume = {96},
	unique-id = {141295},
	issn = {0177-798X},
	year = {2009},
	eissn = {1434-4483},
	pages = {133-144},
	orcid-numbers = {Bartholy, Judit/0000-0002-3911-7981; Pongrácz, Rita/0000-0001-7591-7989}
}

@article{MTMT:1480718,
	title = {European cyclone track analysis based on ECMWF ERA-40 data sets},
	url = {https://m2.mtmt.hu/api/publication/1480718},
	author = {Bartholy, Judit and Pongrácz, Rita and Pattantyus-Abraham, M},
	doi = {10.1002/joc.1392},
	journal-iso = {INT J CLIMATOL},
	journal = {INTERNATIONAL JOURNAL OF CLIMATOLOGY},
	volume = {26},
	unique-id = {1480718},
	issn = {0899-8418},
	abstract = {Changes in large-scale circulation patterns over the North-Atlantic-European region are presented and analyzed for the 20th century. First, changes in decadal frequency of Hess-Brezowsky macrocirculation patterns (MCP) are evaluated for the period between 1881 and 2000. Frequency of several MCP types increased or decreased considerably during these 120 years, which may be explained by large-scale changes in circulation characteristics, e.g. by changes in cyclone activity in the different regions. Therefore, cyclone center identification and cyclone tracks and intensity analysis have been accomplished on the basis of the European Centre for Medium-range Weather Forecast (ECMWF) reanalysis data sets (ERA-40) on a 2.5 degrees horizontal resolution grid for the period between 1957 and 2002. Results suggest that both the number of midlatitude cyclones and the cyclone activity increased considerably in the. North-Atlantic-European region, especially in the northwestern part of the domain. Copyright (c) 2006 Royal Meteorological Society.},
	keywords = {cyclone track analysis; North-Atlantic-European region; geopotential height; reanalysis; macrocirculation pattern; midlatitude cyclone},
	year = {2006},
	eissn = {1097-0088},
	pages = {1517-1527},
	orcid-numbers = {Bartholy, Judit/0000-0002-3911-7981; Pongrácz, Rita/0000-0001-7591-7989}
}