TY - JOUR AU - Jeevan Kumar, B. AU - Schmeller, Gabriella TI - Assessment of WRF planetary boundary layer schemes in the simulation of fog events over Hungary JF - IDŐJÁRÁS / QUARTERLY JOURNAL OF THE HUNGARIAN METEOROLOGICAL SERVICE J2 - IDŐJÁRÁS VL - 127 PY - 2023 IS - 1 SP - 1 EP - 22 PG - 22 SN - 0324-6329 DO - 10.28974/idojaras.2023.1.1 UR - https://m2.mtmt.hu/api/publication/33702362 ID - 33702362 AB - 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. LA - English DB - MTMT ER - TY - JOUR AU - Schmeller, Gabriella AU - Nagy, Gábor AU - Sarkadi, Noémi AU - Cséplő, Anikó AU - Pirkhoffer, Ervin AU - Geresdi, István AU - Balogh, Richárd AU - Ronczyk, Levente AU - Czigány, Szabolcs TI - Trends in extreme precipitation events (SW Hungary) based on a high-density monitoring network JF - HUNGARIAN GEOGRAPHICAL BULLETIN (2009-) J2 - HUNG GEOGR BULL (2009-) VL - 71 PY - 2022 IS - 3 SP - 231 EP - 247 PG - 17 SN - 2064-5031 DO - 10.15201/hungeobull.71.3.2 UR - https://m2.mtmt.hu/api/publication/33118510 ID - 33118510 N1 - Institute of Geography and Earth Sciences, Faculty of Sciences, University of Pécs, Ifjúság u. 6, Pécs, H-7622, Hungary South Transdanubian Water Management, Köztársaság tér 7, Pécs, H-7623, Hungary Export Date: 13 March 2023 Correspondence Address: Nagy, G.; South Transdanubian Water Management, Köztársaság tér 7, Hungary; email: gabor.nagy.84@gmail.com Correspondence Address: Sarkadi, N.; Institute of Geography and Earth Sciences, Ifjúság u. 6, Hungary; email: sarkadin@gamma.ttk.pte.hu AB - 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. LA - English DB - MTMT ER - TY - JOUR AU - Cséplő, Anikó AU - Schmeller, Gabriella AU - Czigány, Szabolcs AU - Sarkadi, Noémi AU - Pirkhoffer, Ervin AU - Jeevan Kumar, B. AU - Geresdi, István TI - Még nem nagykorú, de már adatbázis: Meteorológiai állomás a botanikus kert szélárnyékában JF - LÉGKÖR: AZ ORSZÁGOS METEOROLÓGIAI INTÉZET SZAKMAI TÁJÉKOZTATÓJA J2 - LÉGKÖR VL - 66 PY - 2021 IS - 1 SP - 11 EP - 18 PG - 8 SN - 0133-3666 UR - https://m2.mtmt.hu/api/publication/32468981 ID - 32468981 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Cséplő, Anikó AU - Sarkadi, Noémi AU - Horváth, Ákos AU - Schmeller, Gabriella AU - Lemler, Tünde TI - Fog climatology in Hungary JF - IDŐJÁRÁS / QUARTERLY JOURNAL OF THE HUNGARIAN METEOROLOGICAL SERVICE J2 - IDŐJÁRÁS VL - 123 PY - 2019 IS - 2 SP - 241 EP - 264 PG - 24 SN - 0324-6329 DO - 10.28974/idojaras.2019.2.7 UR - https://m2.mtmt.hu/api/publication/30727568 ID - 30727568 AB - 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. LA - English DB - MTMT ER - TY - JOUR AU - Schmeller, Gabriella AU - Geresdi, István TI - Study of interaction between cloud microphysics and chemistry using coupled bin microphysics and bin aqueous chemistry scheme JF - ATMOSPHERIC ENVIRONMENT J2 - ATMOS ENVIRON VL - 198 ET - 0 PY - 2019 SP - 366 EP - 380 PG - 15 SN - 1352-2310 DO - 10.1016/j.atmosenv.2018.10.064 UR - https://m2.mtmt.hu/api/publication/30340351 ID - 30340351 N1 - Export Date: 7 December 2018 CODEN: AENVE Correspondence Address: Schmeller, G.; Faculty of Sciences, University of Pécs, Ifjúság útja 6., Hungary; email: schg@gamma.ttk.pte.hu LA - English DB - MTMT ER - TY - CHAP AU - Schmeller, Gabriella AU - Geresdi, István ED - Czitrovszky, Aladár ED - Kugler, Szilvia ED - Nagy, Attila Tibor ED - Veres, Miklós TI - A ködben lejátszódó kémiai folyamatok numerikus modellezése T2 - A XIV. Magyar Aeroszol Konferencia előadásainak kivonata PB - MTA Wigner Fizikai Kutatóközpont CY - Budapest SN - 9786150064154 PY - 2019 SP - 40 EP - 42 PG - 3 UR - https://m2.mtmt.hu/api/publication/31194233 ID - 31194233 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Schmeller, Gabriella AU - Sarkadi, Noémi TI - A részletes mikrofizikai séma alkalmazása a csapadékkémiai folyamatok modellezésében JF - LÉGKÖR: AZ ORSZÁGOS METEOROLÓGIAI INTÉZET SZAKMAI TÁJÉKOZTATÓJA J2 - LÉGKÖR VL - 63 PY - 2018 IS - 1 SP - 4 EP - 7 PG - 4 SN - 0133-3666 UR - https://m2.mtmt.hu/api/publication/30414141 ID - 30414141 LA - Hungarian DB - MTMT ER - TY - BOOK ED - Schmeller, Gabriella TI - A XIII. Magyar Aeroszol Konferencia előadás-kivonatai ET - 0 PB - Pécsi Tudományegyetem CY - Pécs PY - 2017 SP - 74 SN - 9789634291275 UR - https://m2.mtmt.hu/api/publication/3215597 ID - 3215597 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Schmeller, Gabriella AU - Geresdi, István TI - Numerical simulation of sulfate formation in water drops: Results of a box experiment JF - IDŐJÁRÁS / QUARTERLY JOURNAL OF THE HUNGARIAN METEOROLOGICAL SERVICE J2 - IDŐJÁRÁS VL - 121 PY - 2017 IS - 1 SP - 1 EP - 28 PG - 28 SN - 0324-6329 UR - https://m2.mtmt.hu/api/publication/3211017 ID - 3211017 LA - English DB - MTMT ER - TY - CONF AU - Schmeller, Gabriella AU - Geresdi, István ED - [s n, ] TI - Stratocumulus felhőben lejátszódó szulfátképződés numerikus modellezése kapcsolt bin mikrofizikai és bin kémiai séma használatával T2 - 6. Környezetkémiai Szimpózium C1 - Bakonybél PY - 2017 SP - 25 EP - 25 PG - 1 UR - https://m2.mtmt.hu/api/publication/3297519 ID - 3297519 LA - Hungarian DB - MTMT ER - TY - CHAP AU - Schmeller, Gabriella AU - Geresdi, István ED - Schmeller, Gabriella TI - Stratocumulus felhőben lejátszódó szulfátképződés numerikus modellezése T2 - A XIII. Magyar Aeroszol Konferencia előadás-kivonatai PB - Pécsi Tudományegyetem CY - Pécs SN - 9789634291275 PY - 2017 SP - 13 EP - 14 PG - 2 UR - https://m2.mtmt.hu/api/publication/3227606 ID - 3227606 LA - Hungarian DB - MTMT ER - TY - GEN AU - Schmeller, Gabriella AU - Geresdi, István TI - Numerical simulation of cloud chemistry using bin microphysical scheme PY - 2016 SP - 253 EP - 253 PG - 1 UR - https://m2.mtmt.hu/api/publication/3235504 ID - 3235504 LA - English DB - MTMT ER - TY - CONF AU - Schmeller, Gabriella AU - Geresdi, István ED - MTA, Analitikai és Környezeti Kémiai Tudományos Bizottság Környezeti Kémiai Munkabizottsága TI - Szulfátképződés numerikus modellezése vízcseppekben - egy doboz-modell eredményei T2 - Ötödik Környezetkémiai Szimpózium PY - 2016 SP - 10 EP - 10 PG - 1 UR - https://m2.mtmt.hu/api/publication/3226723 ID - 3226723 LA - Hungarian DB - MTMT ER - TY - CHAP AU - Schmeller, Gabriella AU - Geresdi, István ED - Filep, Ágnes ED - Mucsiné, Égerházi Lilla TI - A Kronig-Brink hatás a gázok abszorpciójára T2 - A XII. Magyar Aeroszol Konferencia előadás-kivonatai PB - Szegedi Tudományegyetem (SZTE) CY - Szeged SN - 9633063647 PY - 2015 SP - 90 EP - 91 PG - 2 UR - https://m2.mtmt.hu/api/publication/3004008 ID - 3004008 LA - Hungarian DB - MTMT ER - TY - CHAP AU - Schmeller, Gabriella ED - Gál-Balogh, Réka ED - Schmidt, Petra TI - A légköri kén-dioxid kimosódásának modellezése T2 - A földtudományi kutatások új aspektusai PB - Publikon Kiadó CY - Pécs SN - 9786155001192 T3 - Geographia Pannonica Nova, ISSN 1789-0527 ; 17. PY - 2013 SP - 238 EP - 242 PG - 5 UR - https://m2.mtmt.hu/api/publication/30716870 ID - 30716870 LA - Hungarian DB - MTMT ER - TY - GEN AU - Schmeller, Gabriella TI - A légköri kén-dioxid kimosódásának modellezése PY - 2013 UR - https://m2.mtmt.hu/api/publication/2510760 ID - 2510760 LA - Hungarian DB - MTMT ER - TY - CHAP AU - Schmeller, Gabriella AU - Geresdi, István ED - Kertész, Zsófia ED - Szikszai, Zita ED - Angyal, Anikó ED - Furu, Enikő Emese ED - Szoboszlai, Zoltán ED - Török, Zsófia TI - A levegő kémiai összetételének hatása a kondenzációs mag tömegének változására T2 - XI. Magyar Aeroszol Konferencia PB - MTA ATOMKI CY - Debrecen SN - 9789638321503 PY - 2013 SP - 18 EP - 19 PG - 2 UR - https://m2.mtmt.hu/api/publication/2501502 ID - 2501502 LA - Hungarian DB - MTMT ER -