@article{MTMT:33702362, title = {Assessment of WRF planetary boundary layer schemes in the simulation of fog events over Hungary}, url = {https://m2.mtmt.hu/api/publication/33702362}, author = {Jeevan Kumar, B. and Schmeller, Gabriella}, doi = {10.28974/idojaras.2023.1.1}, journal-iso = {IDŐJÁRÁS}, journal = {IDŐJÁRÁS / QUARTERLY JOURNAL OF THE HUNGARIAN METEOROLOGICAL SERVICE}, volume = {127}, unique-id = {33702362}, issn = {0324-6329}, abstract = {Accurate depiction of meteorological conditions, especially within the planetary boundary layer (PBL), is essential for fog forecasting. This study examines the sensitivity of the performance of the Weather Research and Forecast (WRF) model to the use of four different PBL schemes [Yonsei University (YSU), asymmetric convective model version 2 (ACM2), quasinormal scale elimination (QNSE), and Mellor-Yamada-Nakanishi-Niino version 3.0 (MYNN3)]. For this case study we have taken the fog event occurred in November 23-24, 2020. Surface observed temperature and relative humidity, furthermore, sounding data are compared with the output of the 36 hours, high-resolution weather forecast. The horizontal extension of the simulated fog is compared with satellite observations. The visibility is calculated from the prognostic variables of drop number concentration and mixing ratio. The simulated visibility and fog duration are validated by the visibility and fog duration evaluated by ceilometer observations. Validation of thermodynamical values such as 2-m temperature and relative humidity reveals, that during most of the simulation time, the bias is significant between the simulated and observed data. Results show that the PBL parameterization scheme significantly impacts fog microphysics also. The QNSE scheme results in unrealistic early formation of the fog, and too large liquid water content. YSU and ACM2 simulated the duration of fog to be rather short comparing with the other two PBL schemes. The best fitting with observed data is found in the case of MYNN3 PBL schemes.}, year = {2023}, eissn = {0324-6329}, pages = {1-22}, orcid-numbers = {Jeevan Kumar, B./0000-0003-3762-2017} } @article{MTMT:33118510, title = {Trends in extreme precipitation events (SW Hungary) based on a high-density monitoring network}, url = {https://m2.mtmt.hu/api/publication/33118510}, author = {Schmeller, Gabriella and Nagy, Gábor and Sarkadi, Noémi and Cséplő, Anikó and Pirkhoffer, Ervin and Geresdi, István and Balogh, Richárd and Ronczyk, Levente and Czigány, Szabolcs}, doi = {10.15201/hungeobull.71.3.2}, journal-iso = {HUNG GEOGR BULL (2009-)}, journal = {HUNGARIAN GEOGRAPHICAL BULLETIN (2009-)}, volume = {71}, unique-id = {33118510}, issn = {2064-5031}, abstract = {Climate change is commonly associated with extreme weather phenomena. Extreme weather patterns may bring prolonged drought periods, more intense runoff and increased severity of floods. Rainfall distribution is extremely erratic both in space and time, particularly in areas of rugged topography and heterogeneous land use. Therefore, locating major rainfall events and predicting their hydrological consequences is challenging. Hence, our study aimed at exploring the spatial and temporal patterns of daily rainfall totals of R ≥ 20 mm, R ≥ 30 mm and R ≥ 40 mm (extreme precipitation events, EPE) in Pécs (SW Hungary) by a hydrometeorological network (PHN) of 10 weather stations and the gridded database of the Hungarian Meteorological Service (OMSZ). Our results revealed that (a) OMSZ datasets indicated increasing frequencies of EPEs for the period of 1971–2020 in Pécs, (b) the OMSZ dataset generally underestimated EPE frequencies, particularly for R ≥ 40 mm EPEs, for the period of 2013 to 2020, and (c) PHN indicated a slight orographic effect, demonstrating spatial differences of EPEs between the two datasets both annually and seasonally for 2013–2020. Our results pointed out the adequacy of interpolated datasets for mesoscale detection of EPE distribution. However, topographically representative monitoring networks provide more detailed microscale data for the hydrological management of urban areas. Data from dense rain-gauge networks may complement interpolated datasets, facilitating complex environmental management actions and precautionary measures, particularly during weather-related calamities.}, year = {2022}, eissn = {2064-5147}, pages = {231-247}, orcid-numbers = {Sarkadi, Noémi/0000-0002-2370-8621; Pirkhoffer, Ervin/0000-0003-2917-3290; Geresdi, István/0000-0002-3160-7900; Czigány, Szabolcs/0000-0002-9158-3162} } @article{MTMT:32468981, title = {Még nem nagykorú, de már adatbázis: Meteorológiai állomás a botanikus kert szélárnyékában}, url = {https://m2.mtmt.hu/api/publication/32468981}, author = {Cséplő, Anikó and Schmeller, Gabriella and Czigány, Szabolcs and Sarkadi, Noémi and Pirkhoffer, Ervin and Jeevan Kumar, B. and Geresdi, István}, journal-iso = {LÉGKÖR}, journal = {LÉGKÖR: AZ ORSZÁGOS METEOROLÓGIAI INTÉZET SZAKMAI TÁJÉKOZTATÓJA}, volume = {66}, unique-id = {32468981}, issn = {0133-3666}, year = {2021}, pages = {11-18}, orcid-numbers = {Czigány, Szabolcs/0000-0002-9158-3162; Sarkadi, Noémi/0000-0002-2370-8621; Jeevan Kumar, B./0000-0003-3762-2017; Geresdi, István/0000-0002-3160-7900} } @article{MTMT:30727568, title = {Fog climatology in Hungary}, url = {https://m2.mtmt.hu/api/publication/30727568}, author = {Cséplő, Anikó and Sarkadi, Noémi and Horváth, Ákos and Schmeller, Gabriella and Lemler, Tünde}, doi = {10.28974/idojaras.2019.2.7}, journal-iso = {IDŐJÁRÁS}, journal = {IDŐJÁRÁS / QUARTERLY JOURNAL OF THE HUNGARIAN METEOROLOGICAL SERVICE}, volume = {123}, unique-id = {30727568}, issn = {0324-6329}, abstract = {The fog not only makes the traffic more difficult, but it is frequently accompanied by increased air pollution. A research program has been started recently to improve our knowledge about fog both in macro and micro scales. In the first part of the research project, analysis of the data collected in the last 60 years has been performed. This database contains information about the visibility and the duration of the reduced visibility at 8 different cities in different regions of Hungary. The climatology of fog in Hungary has been studied in only few research programs, and no comprehensive analysis of the data has been performed. The first results of the data analysis show that the frequency and duration of the mist significantly reduced between the 1980s and 2000s, and the most dramatic reduction occurred in the northeast region of the country. Furthermore, the frequency of fog also dropped in this time period. The most dramatic reduction of the fog and mist events was found in northeastern Hungary, which was one of the most polluted regions in the country until the 90s of the last century. The coincidence of the significant reduction of duration of fog and that of the sulfate emission in NE Hungary supports the hypothesis that there is a strong correlation between the air pollution and the formation of the mist and fog.}, year = {2019}, eissn = {0324-6329}, pages = {241-264}, orcid-numbers = {Sarkadi, Noémi/0000-0002-2370-8621} } @article{MTMT:30340351, title = {Study of interaction between cloud microphysics and chemistry using coupled bin microphysics and bin aqueous chemistry scheme}, url = {https://m2.mtmt.hu/api/publication/30340351}, author = {Schmeller, Gabriella and Geresdi, István}, doi = {10.1016/j.atmosenv.2018.10.064}, journal-iso = {ATMOS ENVIRON}, journal = {ATMOSPHERIC ENVIRONMENT}, volume = {198}, unique-id = {30340351}, issn = {1352-2310}, year = {2019}, eissn = {1873-2844}, pages = {366-380}, orcid-numbers = {Geresdi, István/0000-0002-3160-7900} } @{MTMT:31194233, title = {A ködben lejátszódó kémiai folyamatok numerikus modellezése}, url = {https://m2.mtmt.hu/api/publication/31194233}, author = {Schmeller, Gabriella and Geresdi, István}, booktitle = {A XIV. Magyar Aeroszol Konferencia előadásainak kivonata}, unique-id = {31194233}, year = {2019}, pages = {40-42}, orcid-numbers = {Geresdi, István/0000-0002-3160-7900} } @article{MTMT:30414141, title = {A részletes mikrofizikai séma alkalmazása a csapadékkémiai folyamatok modellezésében}, url = {https://m2.mtmt.hu/api/publication/30414141}, author = {Schmeller, Gabriella and Sarkadi, Noémi}, journal-iso = {LÉGKÖR}, journal = {LÉGKÖR: AZ ORSZÁGOS METEOROLÓGIAI INTÉZET SZAKMAI TÁJÉKOZTATÓJA}, volume = {63}, unique-id = {30414141}, issn = {0133-3666}, year = {2018}, pages = {4-7}, orcid-numbers = {Sarkadi, Noémi/0000-0002-2370-8621} } @book{MTMT:3215597, title = {A XIII. Magyar Aeroszol Konferencia előadás-kivonatai}, url = {https://m2.mtmt.hu/api/publication/3215597}, isbn = {9789634291275}, editor = {Schmeller, Gabriella}, publisher = {PTE}, unique-id = {3215597}, year = {2017} } @article{MTMT:3211017, title = {Numerical simulation of sulfate formation in water drops: Results of a box experiment}, url = {https://m2.mtmt.hu/api/publication/3211017}, author = {Schmeller, Gabriella and Geresdi, István}, journal-iso = {IDŐJÁRÁS}, journal = {IDŐJÁRÁS / QUARTERLY JOURNAL OF THE HUNGARIAN METEOROLOGICAL SERVICE}, volume = {121}, unique-id = {3211017}, issn = {0324-6329}, year = {2017}, eissn = {0324-6329}, pages = {1-28}, orcid-numbers = {Geresdi, István/0000-0002-3160-7900} } @CONFERENCE{MTMT:3297519, title = {Stratocumulus felhőben lejátszódó szulfátképződés numerikus modellezése kapcsolt bin mikrofizikai és bin kémiai séma használatával}, url = {https://m2.mtmt.hu/api/publication/3297519}, author = {Schmeller, Gabriella and Geresdi, István}, booktitle = {6. Környezetkémiai Szimpózium}, unique-id = {3297519}, year = {2017}, pages = {25-25} } @{MTMT:3227606, title = {Stratocumulus felhőben lejátszódó szulfátképződés numerikus modellezése}, url = {https://m2.mtmt.hu/api/publication/3227606}, author = {Schmeller, Gabriella and Geresdi, István}, booktitle = {A XIII. Magyar Aeroszol Konferencia előadás-kivonatai}, unique-id = {3227606}, year = {2017}, pages = {13-14}, orcid-numbers = {Geresdi, István/0000-0002-3160-7900} } @misc{MTMT:3235504, title = {Numerical simulation of cloud chemistry using bin microphysical scheme}, url = {https://m2.mtmt.hu/api/publication/3235504}, author = {Schmeller, Gabriella and Geresdi, István}, unique-id = {3235504}, year = {2016}, pages = {253-253} } @CONFERENCE{MTMT:3226723, title = {Szulfátképződés numerikus modellezése vízcseppekben - egy doboz-modell eredményei}, url = {https://m2.mtmt.hu/api/publication/3226723}, author = {Schmeller, Gabriella and Geresdi, István}, booktitle = {Ötödik Környezetkémiai Szimpózium}, unique-id = {3226723}, year = {2016}, pages = {10-10} } @{MTMT:3004008, title = {A Kronig-Brink hatás a gázok abszorpciójára}, url = {https://m2.mtmt.hu/api/publication/3004008}, author = {Schmeller, Gabriella and Geresdi, István}, booktitle = {A XII. Magyar Aeroszol Konferencia előadás-kivonatai}, unique-id = {3004008}, year = {2015}, pages = {90-91} } @inproceedings{MTMT:30716870, title = {A légköri kén-dioxid kimosódásának modellezése}, url = {https://m2.mtmt.hu/api/publication/30716870}, author = {Schmeller, Gabriella}, booktitle = {A földtudományi kutatások új aspektusai}, unique-id = {30716870}, year = {2013}, pages = {238-242} } @misc{MTMT:2510760, title = {A légköri kén-dioxid kimosódásának modellezése}, url = {https://m2.mtmt.hu/api/publication/2510760}, author = {Schmeller, Gabriella}, unique-id = {2510760}, year = {2013} } @{MTMT:2501502, title = {A levegő kémiai összetételének hatása a kondenzációs mag tömegének változására}, url = {https://m2.mtmt.hu/api/publication/2501502}, author = {Schmeller, Gabriella and Geresdi, István}, booktitle = {XI. Magyar Aeroszol Konferencia}, unique-id = {2501502}, year = {2013}, pages = {18-19} }