Jan Szolgay

Scopus Publications

Potential of Sentinel-3 snow cover fraction data for improving hydrological simulations at the regional scale
Mitra Tanhapour, Juraj Parajka, Gabriele Schwaizer, Mariette Vreugdenhil, Silvia Kohnová, Kamila Hlavčová, Roman Výleta, Ján Szolgay
Scientific Reports, 2026
Satellite snow cover observations have been shown to enhance the calibration of conceptual hydrologic models. Recent advance in the mapping of snow cover fraction brings new satellite products and datasets. This study assesses the accuracy and potential of a newly developed snow cover fraction (SCF) product derived from Sentinel-3 observations. The product is developed using a physically based spectral unmixing approach that maps daily snow cover fractions at a 200 m spatial resolution over mountain regions. The main objective of this study is to evaluate the potential of the SCF for improving hydrological simulations at the regional scale. The specific aims are to compare the accuracy of snow cover mapping with daily snow depth observations at 631 climate stations and to assess and compare the runoff and snow model efficiencies obtained from multiple-objective calibration and calibration to runoff only. The analysis is performed using 188 lowland and alpine catchments in Austria. The results show that SCF agrees very well with snow depth observations at climate stations as documented by the median of overall accuracy, which exceeds 95%. The SCF helps to enhance runoff and snow simulations for 39% and 84% of the overall catchments in validation period, respectively. The use of SCF in model calibration improves the efficiency of runoff model, particularly in lowland catchments.
History of hydrological research in Slovakia and its links to water management
Ladislav Holko, Pavla Pekárová, Ján Szolgay, Pavol Miklánek, G. Babiaková
Hydrological Sciences Journal, 2025
Reconstruction and regime change analysis of manually recorded meteorological data from the Botanical Garden in Sopron, Hungary
Lili Muraközy, Gábor Kovács, Ján Szolgay, Péter Kalicz, Roman Výleta, Zoltán Gribovszki
Acta Hydrologica Slovaca, 2025
Meteorological observations in Sopron began in the early 18th century and have been carried out daily without interruption since 1870. From 1924 to 1974, the Botanical Garden's meteorological station served as the official station, which was then moved to the Kuruc Hill. The paper focuses on reconstructing and unifying the data of the Botanical Garden station, which continued to be operated by the University of Sopron on a voluntary basis. The data was examined, corrected and gaps reconstructed and crosschecked with the homogenized series of Kuruc Hill. This paper aims to demonstrate how abandoned local historical data and simple exploratory analysis with new simple metrics and comparative reasoning can be used to look for changes in data series. The reconstructed Botanical Garden series was used to detect local changes due to climate and landuse change and the impact of urbanization between the 1930–60 and 1989–2019 periods. The distribution and quantity of air temperature and precipitation were examined on annual, monthly and daily time scales. Differences in the water balance elements between the two periods were detected by the Thornthwaite monthly water balance model. © 2025, Slovak Academy of Sciences, Institute of Hydrology. All rights reserved.
Transposition of donor daily flows to ungauged catchments for reservoir safety analysis using drainage area-based multipliers
Anna Liová, Roman Výleta, Kamila Hlavčová, Katarína Jeneiová, Milan Onderka, Ján Szolgay
Acta Hydrologica Slovaca, 2025
Travel-time–discharge modelling for flood routing with broken line regression on the Morava River
Michaela Danáčová, Esmaeil Jeihouni, Tomáš Bacigál, Roman Výleta, Zuzana Danáčová, Ján Szolgay
Acta Hydrologica Slovaca, 2025
Analysis of the fluctuations of main water balance components at six forest stands in the Great Hungarian Plain
Bence Bolla, Ján Szolgay, Zoltán Gribovszki, Péter Kalicz, Márton Dobó, András Szabó
Acta Hydrologica Slovaca, 2025
The hydro-meteorological measurement network of the Forest Research Institute of the University of Sopron monitored the water balance of six aged lowland forest stands (Bócsa: Grey poplar Gyula: Pedunculate oak, Jászberény: Pedunculate oak, Kecskemét: Scots pine, Püspökladány: Pedunculate oak, Pusztaszer: Black locust). Meteorological, soil moisture, and groundwater level data were used to estimate the differences between reactions of the water use of forest stands and changes in water balance in a predominantly dry period of 2019 to 2024. The available groundwater resources for the forest decreased significantly during this period, and the annual recharge cycle dampened or even diminished after the 2022 extreme compound warming and drought event, while the moisture stored in different soil layers, crucial for the survival of lowland forests, continued its recharging. The results contribute to understanding the variability and decrease of the access of the lowland forests to groundwater and soil moisture under conditions of warming climate, prolonged droughts and compound extremes.
Investigation of the impact of forest stands on groundwater recharge in the Kecskemét-Méntelek study area
András Szabó, Zoltán Gribovszki, Péter Kalicz, Ján Szolgay, Zsolt Gácsi, Bence Bolla
Agrokemia Es Talajtan, 2024
Az Alföldet, azon belül is különösen a Homokhátságot érintő talajvízszint süllyedés, súlyos ökológiai és gazdasági következményekkel is járó problémakör. A jelenség hátterében álló lehetséges okokkal kapcsolatban több évtizede zajlik kutatómunka, ugyanakkor ezek relatív súlyának meghatározása a mai napig tudományos vita tárgyát képezi.Több szerző is kiemeli az erdőtelepítések talajvízszint csökkentő hatásának fontosságát. Ez a hatás két módon, a vegetáció vízfelvétele, illetve a csapadékból történő utánpótlódás csökkentése (intercepció, talajnedvesség felvétel) által jelentkezhet. Ezen mechanizmusok működését vizsgáltuk meg egy akác (Robinia pseudoacacia) és egy fekete fenyő (Pinus nigra) állomány esetében a Homokhátságon, Kecskemét-Ménteleken kialakított mintaterületünkön, 90, 150 és 200 cm-es mélységben, nagy időbeli felbontással mért talajnedvesség, illetve talajvíz adatokra alapozva.Az adatok alapján feltételezhető, hogy a talajvízből nem történik közvetlen, vagy közvetett vízfelvétel, aminek oka vélhetően a gyökérzóna és a talajvíz közti igen jelentős horizontális távolság. A talajnedvesség esetében a sekélyebb rétegekben egyértelműen jelentkezik az erdőállományok szezonális szárító hatása. Ugyanakkor a mélyebb rétegek talajnedvesség adatai alapján kijelenthető, hogy a csapadékból történő talajvíz visszatöltődésre leginkább az akác állomány alatt van elméleti lehetőség. A látszólagos ellentmondás feltételezhetően a gyökérzet által kialakított makropórusok hatásával magyarázható. Ezt támasztja alá az akác és fekete fenyő állományok közti igen jelentős eltérés is.Következtetésünk, hogy az erdőállományok lokálisan jelentősen eltérő hatást gyakorolhatnak a talajvízszintre. Ezért a lezajló folyamatok hátterét, általános jellegű megállapítások helyett, az adott hidrológiai rendszer több elemét vizsgáló monitoring adataira alapozva lehetséges csak felderíteni.
Evaluation of the water supply's impact on groundwater levels, with an example from South-West Hungary
András Herceg, Péter Kalicz, Katalin Anita Zagyvainé Kiss, Ján Szolgay, László Horváth, Bence Gallai, Zoltán Gribovszki
Agrokemia Es Talajtan, 2024
Az Európát is érintő jelenlegi, napjainkban zajló éghajlatváltozás statisztikailag szignifikáns felmelegedési tendenciával jellemezhető. Az éghajlatváltozás hatása a csapadékviszonyok és az evapotranszspirációs folyamatok megváltoztatásán keresztül érinti a vízkörforgalmat, így a csapadék eloszlásának és mennyiségének várható változásai a folyamatosan emelkedő hőmérséklettel együtt a növények nagyobb vízfelhasználását eredményezhetik, ami változásokat indukálhat a talajnedvességben, a talajvízben és ennek következtében a vízmérlegben. Az emelkedő hőmérséklet hatására a jövőben a növekvő transzspirációs igény valószínűleg a növényi közösségek fokozott talajvízfelvételét eredményezi, ami a talajvízszint további csökkenését is magával vonhatja. Ha ez bekövetkezik, a talajvízfüggő erdei közösségek regenerálódása ezeken a területeken kérdésessé válik, mivel a fiatal fák gyökérzete nem fogja tudni elérni a vízforrást. Következésképpen a Kárpát-medence sík vidékein és vizes élőhelyein a nagy vízigényű erdők fennmaradása kérdésessé válhat. A fás vegetáció számára kiemelten fontos a talajvíz szerepe a vegetációs időszakban, éppen ezért a talajvízszint változását régóta, rendszeresen monitorozzák.Konkrét megoldás lehet az árhullámok visszaduzzasztásából származó vízpótlás. A pozitív vízpótlási beavatkozásokra példa a Kaszó LIFE projekt. A projekt célja a leromlott élőhelyek rehabilitációja volt, ami a kedvező ökológiai állapot stabilizálásával teszi lehetővé a hosszú távú megőrzést. A megvalósítás eszközeként tórehabilitációt és folyó-mederbordákat alkalmaztak, biztosítva a Szentai-erdő (Nyugat-belső-somogyi kistérség) erdeinek, kis lápjainak és gyepterületeinek vízellátás javítását.Jelen kutatás célja pedig a Kaszó LIFE projekt vízpótlási beavatkozásai után, azok felszín alatti vízszintre gyakorolt hidrológiai hatásainak elemzése volt. A meteorológiai adatok és a monitoring adatok alapján elmondható, hogy a Szentai-erdőben 30 éves szárazodási tendencia volt tapasztalható, amelynek elsődleges mutatója a talajvízszint csökkenése. Kiemelendőek a 2016–2017-es vizsgálati időszak évei, amikor az alapvetően lefolyástalan vizsgálati területen nem volt elegendő csapadék a talajvíz szintjének fenntartásához. Kutatási eredményeink azonban azt mutatták, hogy a vízpótlást célzó beavatkozások (mederbordák és tározótavak) összességében a talajvízszint emelkedését biztosítják.A két beavatkozási típus talajvízszint emelkedésére gyakorolt hatását vizsgálva arra a következtetésre jutottunk, hogy míg a tavak építése jelentősen befolyásolja a környező kutak vízszintjét, addig a mederbordák esetében kisebb mértékű a hatás.
Applying a time-varying GEV distribution to correct bias in rainfall quantiles derived from regional climate models
Milan Onderka, Jozef Pecho, Ján Szolgay, Silvia Kohnová, Marcel Garaj, et al.
Journal of Hydrology and Hydromechanics, 2024
Abstract Climate warming is causing an increase in extreme hydrometeorological events in most parts of the world. This phenomenon is expected to continue and will affect the frequency and intensity of extreme precipitation events. Although bias correction in regional climate model simulations has also been used to assess changes in precipitation extremes at daily and longer time steps, trends in the series predicted have seldom been considered. We present a novel bias correction technique that allows for the correcting of biases in the upper tails of the Generalized Extreme Value (GEV) distribution, while preserving the trend in projected precipitation extremes. The concept of non-stationary bias correction is demonstrated in a case study in which we used four EURO-CORDEX RCM models to estimate future rainfall quantiles. Historical observations have been used to correct biases in historical runs of the RCMs. The mean relative change in rainfall quantiles between the 1991–2021 historical period and the time horizon of 2080 was found to be 13.5% (st. dev.: 2.9%) for the return period of 2 years, which tends to decline with increasing return periods. Upon the return periods of 50 and 100 years, the mean relative change was predicted to be 5.5% (st. dev.: 1.1%) and 4.8% (st. dev.: 1%), respectively.
Evaluation of the Compound Effects of the 2022 Drought and Heatwave on Selected Forest Monitoring Sites in Hungary in Relation to Its Multi-Year Drought Legacy
Bence Bolla, Miklós Manninger, Tamás Molnár, Bálint Horváth, Jan Szolgay, Zoltán Gribovszki, Péter Kalicz, András Szabó
Forests, 2024
The effects of the changing frequency and severity of drought events in Central Europe may become a growing concern for its forests. In this study, we looked into how Hungary’s forests have been affected by the 2022 compound heatwave and drought, following an arid period from 2018 to 2021. We used our active intensive monitoring plots of the Forest Protection Measuring and Monitoring System (Level II in the ICP Forests) across the country between 2017 and 2022. We analyzed satellite images to support a survey of the large-scale drought utilizing moderate and high-resolution data. The health state of the forest calculated and mapped on the NDVI, ZNDVI, and NDWI indices showed damage and regeneration throughout the period studied. Overall, the forest stands observed tolerated the negative impacts of the drought (126–204 mm water deficit in 2022) based on our biomass data (the summer leaf loss was 14% in each monitoring plot). However, the classified Z-NDVI values of the Sentinel-2 satellite imagery for the period 2017–2022 showed a severe drought in 2022, which was followed by some improvement in 2023.
Design flood hydrographs based on scaled flood data using vine copulas
Anna Liová, Roman Výleta, Kamila Hlavčová, Silvia Kohnová, Tomáš Bacigál, Jana Poórová, Ján Szolgay
Pollack Periodica, 2024
The IAHS Science for Solutions decade, with Hydrology Engaging Local People IN one Global world (HELPING)
Berit Arheimer, Christophe Cudennec, Attilio Castellarin, Salvatore Grimaldi, Kate V. Heal, Claire Lupton, Archana Sarkar, Fuqiang Tian, Jean-Marie Kileshye Onema, Stacey Archfield, Günter Blöschl, Pedro L. Borges Chaffe, Barry F.W. Croke, Moctar Dembélé, Chris Leong, Ana Mijic, Giovanny M. Mosquera, Bertil Nlend, Adeyemi O. Olusola, María J. Polo, Melody Sandells, Justin Sheffield, Theresa C. van Hateren, Mojtaba Shafiei, Soham Adla, Ankit Agarwal, Cristina Aguilar, Jafet C.M. Andersson, Cynthia Andraos, Ana Andreu, Francesco Avanzi, Ryan R. Bart, Alena Bartosova, Okke Batelaan, James C. Bennett, Miriam Bertola, Nejc Bezak, Judith Boekee, Thom Bogaard, Martijn J. Booij, Pierre Brigode, Wouter Buytaert, Konstantine Bziava, Giulio Castelli, Cyndi V. Castro, Natalie C. Ceperley, Sivarama K. R. Chidepudi, Francis H. S. Chiew, Kwok P. Chun, Addisu G. Dagnew, B.W. Dekongmen, Manuel Del Jesus, Alain Dezetter, José A. Do Nascimento Batista, Rebecca C. Doble, Nilay Dogulu, Joris P.C. Eekhout, Alper Elçi, Maria Elenius, David C. Finger, Aldo Fiori, Svenja Fischer, Kristian Förster, Daniele Ganora, Emna Gargouri Ellouze, Mohammad Ghoreishi, Natasha Harvey, Markus Hrachowitz, Mahesh Jampani, Fernando Jaramillo, Harro J. Jongen, Kola Y. Kareem, Usman T. Khan, Sina Khatami, Daniel G. Kingston, Gerbrand Koren, Stefan Krause, Heidi Kreibich, Julien Lerat, Junguo Liu, Suxia Liu, Mariana Madruga de Brito, Gil Mahé, Hodson Makurira, Paola Mazzoglio, Mohammad Merheb, Ashish Mishra, Hiba Mohammad, Alberto Montanari, Never Mujere, Ehsan Nabavi, Albert Nkwasa, Maria E. Orduna Alegria, Christina Orieschnig, Valeriya Ovcharuk, Santosh S. Palmate, Saket Pande, Shachi Pandey, Georgia Papacharalampous, Ilias Pechlivanidis, Gopal Penny, Rafael Pimentel, David A. Post, Cristina Prieto, Saman Razavi, Sergio Salazar-Galán, Adarsh Sankaran Namboothiri, Pedro P. Santos, Hubert Savenije, Nura J. Shanono, Ashutosh Sharma, Murugesu Sivapalan, Zhanibek Smagulov, Jan Szolgay, Jin Teng, Adriaan J. Teuling, Claudia Teutschbein, Hristos Tyralis, Ann van Griensven, Andries J. van Schalkwyk, Marit van Tiel, Alberto Viglione, Elena Volpi, Thorsten Wagener, Xiaojun Wang, Lan Wang-Erlandsson, Marthe Wens, Jun Xia
Hydrological Sciences Journal, 2024
Groundwater Recharge from Below under Changing Hydro-Meteorological Conditions in a Forested and Grassland Site of the Great Hungarian Plain
András Szabó, Zoltán Gribovszki, Ján Szolgay, Péter Kalicz, Kitti Balog, József Szalai, Kamila Hlavčová, Bence Bolla
Forests, 2023
Megafloods in Europe can be anticipated from observations in hydrologically similar catchments
Miriam Bertola, Günter Blöschl, Milon Bohac, Marco Borga, Attilio Castellarin, Giovanni B. Chirico, Pierluigi Claps, Eleonora Dallan, Irina Danilovich, Daniele Ganora, Liudmyla Gorbachova, Ondrej Ledvinka, Maria Mavrova-Guirguinova, Alberto Montanari, Valeriya Ovcharuk, Alberto Viglione, Elena Volpi, Berit Arheimer, Giuseppe Tito Aronica, Ognjen Bonacci, Ivan Čanjevac, Andras Csik, Natalia Frolova, Boglarka Gnandt, Zoltan Gribovszki, Ali Gül, Knut Günther, Björn Guse, Jamie Hannaford, Shaun Harrigan, Maria Kireeva, Silvia Kohnová, Jürgen Komma, Jurate Kriauciuniene, Brian Kronvang, Deborah Lawrence, Stefan Lüdtke, Luis Mediero, Bruno Merz, Peter Molnar, Conor Murphy, Dijana Oskoruš, Marzena Osuch, Juraj Parajka, Laurent Pfister, Ivan Radevski, Eric Sauquet, Kai Schröter, Mojca Šraj, Jan Szolgay, Stephen Turner, Peter Valent, Noora Veijalainen, Philip J. Ward, Patrick Willems, Nenad Zivkovic
Nature Geoscience, 2023
Interactions of natural and anthropogenic drivers and hydrological processes on local and regional scales: A review of main results of Slovak hydrology from 2019 to 2022
Ján Szolgay, Pavol Miklánek, Roman Výleta
Acta Hydrologica Slovaca, 2023
An assessment of the uncertainty of the extremity of flood waves with vine copulas
Roman Výleta, Kamila Hlavčová, Silvia Kohnová, Tomáš Bacigál, Anna Liová, Ján Szolgay
Acta Hydrologica Slovaca, 2023
The soil moisture regime and groundwater recharge in aged forests in the Sand Ridge region of Hungary after a decline in the groundwater level: an experimental case study
András Szabó, Zoltán Gribovszki, Péter Kalicz, Ján Szolgay, Bence Bolla
Journal of Hydrology and Hydromechanics, 2022
The effects of satellite soil moisture data on the parametrization of topsoil and root zone soil moisture in a conceptual hydrological model
Martin Kuban, Juraj Parajka, Rui Tong, Isabella Greimeister-Pfeil, Mariette Vreugdenhil, Jan Szolgay, Silvia Kohnova, Kamila Hlavcova, Patrik Sleziak, Adam Brziak
Journal of Hydrology and Hydromechanics, 2022
Identifying barriers for nature-based solutions in flood risk management: An interdisciplinary overview using expert community approach
Pavel Raška, Nejc Bezak, Carla S.S. Ferreira, Zahra Kalantari, Kazimierz Banasik, Miriam Bertola, Mary Bourke, Artemi Cerdà, Peter Davids, Mariana Madruga de Brito, Rhys Evans, David C. Finger, Rares Halbac-Cotoara-Zamfir, Mashor Housh, Artan Hysa, Jiří Jakubínský, Marijana Kapović Solomun, Maria Kaufmann, Saskia Keesstra, Emine Keles, Silvia Kohnová, Michele Pezzagno, Kristina Potočki, Samuel Rufat, Samaneh Seifollahi-Aghmiuni, Arthur Schindelegger, Mojca Šraj, Gintautas Stankunavicius, Jannes Stolte, Ružica Stričević, Jan Szolgay, Vesna Zupanc, Lenka Slavíková, Thomas Hartmann
Journal of Environmental Management, 2022
A methodology for the estimation of control flood wave hydrographs for the Horné Orešany reservoir
Anna Liová, Peter Valent, Kamila Hlavčová, Silvia Kohnová, Tomáš Bacigál, Ján Szolgay
Acta Hydrologica Slovaca, 2022
Improvement of runoff simulation efficiency using satellite soil moisture data for typical monthly runoff regimes in Austria
Martin Kubáň, Juraj Parajka, Ján Szolgay, Silvia Kohnová, Kamila Hlavčová, Patrik Sleziak, Adam Brziak
Acta Hydrologica Slovaca, 2022
A hydrological modeling approach for assessing the impacts of climate change on runoff regimes in Slovakia
Patrik Sleziak, Roman Výleta, Kamila Hlavčová, Michaela Danáčová, Milica Aleksić, Ján Szolgay, Silvia Kohnová
Water Switzerland, 2021
Incorporating advanced scatterometer surface and root zone soil moisture products into the calibration of a conceptual semi-distributed hydrological model
Martin Kubáň, Juraj Parajka, Rui Tong, Isabella Pfeil, Mariette Vreugdenhil, Patrik Sleziak, Brziak Adam, Ján Szolgay, Silvia Kohnová, Kamila Hlavčová
Water Switzerland, 2021
Comparison of the variability of snow cover parameters of the hbv model using lumped and distributed precipitation inputs and multi-basin calibration
Adam Brziak, Martin Kubáň, Silvia Kohnová, Ján Szolgay
Acta Hydrologica Slovaca, 2021
Hydrology of the Carpathian Basin: Interactions of climatic drivers and hydrological processes on local and regional scales - HydroCarpath Research
Ján Szolgay, Günter Blöschl, Zoltán Gribovszki, Juraj Parajka
Journal of Hydrology and Hydromechanics, 2020
Multi-model climatic water balance prediction in the Zala River Basin (Hungary) based on a modified Budyko framework
Péter Csáki, Kitti Gyimóthy, Péter Kalicz, Ján Szolgay, Katalin Anita Zagyvai-Kiss, Zoltán Gribovszki
Journal of Hydrology and Hydromechanics, 2020
Approaches to state flood recovery funding in Visegrad Group Countries
Lenka Slavíková, Pavel Raška, Kazimierz Banasik, Marton Barta, Andras Kis, Silvia Kohnová, Piotr Matczak, Ján Szolgay
Environmental Hazards, 2020
The effect of the snow weighting on the temporal stability of hydrologic model efficiency and parameters
P. Sleziak, J. Szolgay, K. Hlavčová, M. Danko, J. Parajka
Journal of Hydrology, 2020
Comparison of the variances of a lumped and semi-distributed model parameters
Adam Brziak, Martin Kubáň, Silvia Kohnová, Ján Szolgay
Acta Hydrologica Slovaca, 2020
Changing climate both increases and decreases European river floods
Günter Blöschl, Julia Hall, Alberto Viglione, Rui A. P. Perdigão, Juraj Parajka, Bruno Merz, David Lun, Berit Arheimer, Giuseppe T. Aronica, Ardian Bilibashi, Miloň Boháč, Ognjen Bonacci, Marco Borga, Ivan Čanjevac, Attilio Castellarin, Giovanni B. Chirico, Pierluigi Claps, Natalia Frolova, Daniele Ganora, Liudmyla Gorbachova, Ali Gül, Jamie Hannaford, Shaun Harrigan, Maria Kireeva, Andrea Kiss, Thomas R. Kjeldsen, Silvia Kohnová, Jarkko J. Koskela, Ondrej Ledvinka, Neil Macdonald, Maria Mavrova-Guirguinova, Luis Mediero, Ralf Merz, Peter Molnar, Alberto Montanari, Conor Murphy, Marzena Osuch, Valeryia Ovcharuk, Ivan Radevski, José L. Salinas, Eric Sauquet, Mojca Šraj, Jan Szolgay, Elena Volpi, Donna Wilson, Klodian Zaimi, Nenad Živković
Nature, 2019
Twenty-three unsolved problems in hydrology (UPH)–a community perspective
Günter Blöschl, Marc F.P. Bierkens, Antonio Chambel, Christophe Cudennec, Georgia Destouni, Aldo Fiori, James W. Kirchner, Jeffrey J. McDonnell, Hubert H.G. Savenije, Murugesu Sivapalan, Christine Stumpp, Elena Toth, Elena Volpi, Gemma Carr, Claire Lupton, Josè Salinas, Borbála Széles, Alberto Viglione, Hafzullah Aksoy, Scott T. Allen, Anam Amin, Vazken Andréassian, Berit Arheimer, Santosh K. Aryal, Victor Baker, Earl Bardsley, Marlies H. Barendrecht, Alena Bartosova, Okke Batelaan, Wouter R. Berghuijs, Keith Beven, Theresa Blume, Thom Bogaard, Pablo Borges de Amorim, Michael E. Böttcher, Gilles Boulet, Korbinian Breinl, Mitja Brilly, Luca Brocca, Wouter Buytaert, Attilio Castellarin, Andrea Castelletti, Xiaohong Chen, Yangbo Chen, Yuanfang Chen, Peter Chifflard, Pierluigi Claps, Martyn P. Clark, Adrian L. Collins, Barry Croke, Annette Dathe, Paula C. David, Felipe P. J. de Barros, Gerrit de Rooij, Giuliano Di Baldassarre, Jessica M. Driscoll, Doris Duethmann, Ravindra Dwivedi, Ebru Eris, William H. Farmer, James Feiccabrino, Grant Ferguson, Ennio Ferrari, Stefano Ferraris, Benjamin Fersch, David Finger, Laura Foglia, Keirnan Fowler, Boris Gartsman, Simon Gascoin, Eric Gaume, Alexander Gelfan, Josie Geris, Shervan Gharari, Tom Gleeson, Miriam Glendell, Alena Gonzalez Bevacqua, María P. González-Dugo, Salvatore Grimaldi, A. B. Gupta, Björn Guse, Dawei Han, David Hannah, Adrian Harpold, Stefan Haun, Kate Heal, Kay Helfricht, Mathew Herrnegger, Matthew Hipsey, Hana Hlaváčiková, Clara Hohmann, Ladislav Holko, Christopher Hopkinson, Markus Hrachowitz, Tissa H. Illangasekare, Azhar Inam, Camyla Innocente, Erkan Istanbulluoglu, Ben Jarihani, Zahra Kalantari, Andis Kalvans, Sonu Khanal, Sina Khatami, Jens Kiesel, Mike Kirkby, Wouter Knoben, Krzysztof Kochanek, Silvia Kohnová, Alla Kolechkina, Stefan Krause, David Kreamer, Heidi Kreibich, Harald Kunstmann, Holger Lange, Margarida L. R. Liberato, Eric Lindquist, Timothy Link, Junguo Liu, Daniel Peter Loucks, Charles Luce, Gil Mahé, Olga Makarieva, Julien Malard, Shamshagul Mashtayeva, Shreedhar Maskey, Josep Mas-Pla, Maria Mavrova-Guirguinova, Maurizio Mazzoleni, Sebastian Mernild, Bruce Dudley Misstear, Alberto Montanari, Hannes Müller-Thomy, Alireza Nabizadeh, Fernando Nardi, Christopher Neale, Nataliia Nesterova, Bakhram Nurtaev, Vincent O. Odongo, Subhabrata Panda, Saket Pande, Zhonghe Pang, Georgia Papacharalampous, Charles Perrin, Laurent Pfister, Rafael Pimentel, María J. Polo, David Post, Cristina Prieto Sierra, Maria-Helena Ramos, Maik Renner, José Eduardo Reynolds, Elena Ridolfi, Riccardo Rigon, Monica Riva, David E. Robertson, Renzo Rosso, Tirthankar Roy, João H.M. Sá, Gianfausto Salvadori, Mel Sandells, Bettina Schaefli, Andreas Schumann, Anna Scolobig, Jan Seibert, Eric Servat, Mojtaba Shafiei, Ashish Sharma, Moussa Sidibe, Roy C. Sidle, Thomas Skaugen, Hugh Smith, Sabine M. Spiessl, Lina Stein, Ingelin Steinsland, Ulrich Strasser, Bob Su, Jan Szolgay, David Tarboton, Flavia Tauro, Guillaume Thirel, Fuqiang Tian, Rui Tong, Kamshat Tussupova, Hristos Tyralis, Remko Uijlenhoet, Rens van Beek, Ruud J. van der Ent, Martine van der Ploeg, Anne F. Van Loon, Ilja van Meerveld, Ronald van Nooijen, Pieter R. van Oel, Jean-Philippe Vidal, Jana von Freyberg, Sergiy Vorogushyn, Przemyslaw Wachniew, Andrew J. Wade, Philip Ward, Ida K. Westerberg, Christopher White, Eric F. Wood, Ross Woods, Zongxue Xu, Koray K. Yilmaz, Yongqiang Zhang
Hydrological Sciences Journal, 2019
Impacts of Future Climate Change on Runoff in Selected Catchments of Slovakia
Peter Rončák, Kamila Hlavčová, Silvia Kohnová, Ján Szolgay
Climate Change Management, 2019
Estimating the effectiveness of crop management on reducing flood risk and sediment transport on hilly agricultural land – A Myjava case study, Slovakia
K. Hlavčová, M. Danáčová, S. Kohnová, J. Szolgay, P. Valent, R. Výleta
Catena, 2019
Detection of future changes in trends and scaling exponents in extreme short-term rainfall at selected stations in Slovakia
Silvia Kohnová, Marianna Vasilaki, Martin Hanel, Ján Szolgay, Kamila Hlavčová, Athanasios Loukas, Gabriel Földes
Contributions to Geophysics and Geodesy, 2018
Impact of climate change on the hydropower potential in the selected river basins in Slovakia
Peter Roncak
International Multidisciplinary Scientific Geoconference Surveying Geology and Mining Ecology Management Sgem, 2018
Considering heteroscedascity in the modelling and forecasting of time series of mean daily discharges of the hron river at station brehy in Slovakia
Elena Peksova-Szolgayova
International Multidisciplinary Scientific Geoconference Surveying Geology and Mining Ecology Management Sgem, 2018
Factors controlling alterations in the performance of a runoff model in changing climate conditions
Patrik Sleziak, Ján Szolgay, Kamila Hlavčová, Doris Duethmann, Juraj Parajka, Michal Danko
Journal of Hydrology and Hydromechanics, 2018
Estimating effectiveness of crop management for reduction of soil erosion and runoff
K Hlavcova, Z Studvova, S Kohnova, J Szolgay
Iop Conference Series Earth and Environmental Science, 2017
Combined deterministic - Stochastic forecasting of monthly river flows for water management
E Peksova Szolgayova, R Vyleta, J Szolgay, Z Lukac
Iop Conference Series Earth and Environmental Science, 2017
Changing climate shifts timing of European floods
Günter Blöschl, Julia Hall, Juraj Parajka, Rui A. P. Perdigão, Bruno Merz, Berit Arheimer, Giuseppe T. Aronica, Ardian Bilibashi, Ognjen Bonacci, Marco Borga, Ivan Čanjevac, Attilio Castellarin, Giovanni B. Chirico, Pierluigi Claps, Károly Fiala, Natalia Frolova, Liudmyla Gorbachova, Ali Gül, Jamie Hannaford, Shaun Harrigan, Maria Kireeva, Andrea Kiss, Thomas R. Kjeldsen, Silvia Kohnová, Jarkko J. Koskela, Ondrej Ledvinka, Neil Macdonald, Maria Mavrova-Guirguinova, Luis Mediero, Ralf Merz, Peter Molnar, Alberto Montanari, Conor Murphy, Marzena Osuch, Valeryia Ovcharuk, Ivan Radevski, Magdalena Rogger, José L. Salinas, Eric Sauquet, Mojca Šraj, Jan Szolgay, Alberto Viglione, Elena Volpi, Donna Wilson, Klodian Zaimi, Nenad Živković
Science, 2017
Land use change impacts on floods at the catchment scale: Challenges and opportunities for future research
M. Rogger, M. Agnoletti, A. Alaoui, J. C. Bathurst, G. Bodner, M. Borga, V. Chaplot, F. Gallart, G. Glatzel, J. Hall, J. Holden, L. Holko, R. Horn, A. Kiss, S. Kohnová, G. Leitinger, B. Lennartz, J. Parajka, R. Perdigão, S. Peth, L. Plavcová, J. N. Quinton, M. Robinson, J. L. Salinas, A. Santoro, J. Szolgay, S. Tron, J. J. H. van den Akker, A. Viglione, G. Blöschl
Water Resources Research, 2017
Detection of future changes in seasonality in extreme short-term rainfall in selected stations of Slovakia
Marianna Vasilaki, Silvia Kohnová, Martin Hanel, Ján Szolgay, Kamila Hlavčová, Athanasios Loukas, Peter Rončák
Contributions to Geophysics and Geodesy, 2017
The potential for land use change to reduce flood risk in mid-sized catchments in the Myjava region of Slovakia
Peter Rončák, Evelin Lisovszki, Ján Szolgay, Kamila Hlavčová, Silvia Kohnová, Rózsa Csoma, Jana Poórová
Contributions to Geophysics and Geodesy, 2017
Hybrid model for one step ahead forecasting of daily river flows
Elena Peksova-Szolgayova
International Multidisciplinary Scientific Geoconference Surveying Geology and Mining Ecology Management Sgem, 2017
The effect of precipitation corrections on the dependence structure of storm characteristics
9th International Workshop on Precipitation in Urban Areas Urban Challenges in Rainfall Analysis Urbanrain 2012, 2017
Assessment of the uncertainties of the values of a hydrologic model parameters taking into account two calibration approaches
Patrik Sleziak
International Multidisciplinary Scientific Geoconference Surveying Geology and Mining Ecology Management Sgem, 2017
Impacts of changes in forest composition and climate change on the runoff processes in the vÁh river basin in slovakia
Peter Roncak
International Multidisciplinary Scientific Geoconference Surveying Geology and Mining Ecology Management Sgem, 2017
The impact of land use changes on flood regime: A case study of the Myjava catchment
Peter Roncak
International Multidisciplinary Scientific Geoconference Surveying Geology and Mining Ecology Management Sgem, 2017
Assessment of seasonal scaling exponents for the regional estimation of IDF curves in Slovakia
9th International Workshop on Precipitation in Urban Areas Urban Challenges in Rainfall Analysis Urbanrain 2012, 2017
Thematic Issue on Floods in the Danube basin - Processes, patterns, predictions
Günter Blöschl, Jan Szolgay, Juraj Parajka, Silvia Kohnová, Pavol Miklánek
Journal of Hydrology and Hydromechanics, 2016
Joint modelling of flood peaks and volumes: A copula application for the Danube River
George Papaioannou, Silvia Kohnová, Tomáš Bacigál, Ján Szolgay, Kamila Hlavčová, et al.
Journal of Hydrology and Hydromechanics, 2016
A regional comparative analysis of empirical and theoretical flood peak-volume relationships
Ján Szolgay, Ladislav Gaál, Tomáš Bacigál, Silvia Kohnová, Kamila Hlavčová, et al.
Journal of Hydrology and Hydromechanics, 2016
Process-based selection of copula types for flood peak-volume relationships in Northwest Austria: A case study
Silvia Kohnová, Ladislav Gaál, Tomáš Bacigál, Ján Szolgay, Kamila Hlavčová, et al.
Contributions to Geophysics and Geodesy, 2016
Similarity of empirical copulas of flood peak-volume relationships: A regional case study of North-West Austria
Ladislav Gaál, Ján Szolgay, Tomáš Bacigál, Silvia Kohnová, Kamila Hlavčová, et al.
Contributions to Geophysics and Geodesy, 2016
A regional look at the selection of a process-oriented model for flood peak/volume relationships
Ján Szolgay, Ladislav Gaál, Tomáš Bacigál, Silvia Kohnová, Kamila Hlavčová, et al.
IAHS AISH Proceedings and Reports, 2016
Assessment of the performance of a hydrological model in relation to selected climatic characteristics
International Multidisciplinary Scientific Geoconference Surveying Geology and Mining Ecology Management Sgem, 2016
Modelling the Climate Change Impact on Monthly Runoff in Central Slovakia
Kamila Hlavčová, Zuzana Štefunková, Peter Valent, Silvia Kohnová, Roman Výleta, et al.
Procedia Engineering, 2016
Estimation of the impact of climate change-induced extreme precipitation events on floods
Kamila Hlavčová, Milan Lapin, Peter Valent, Ján Szolgay, Silvia Kohnová, et al.
Contributions to Geophysics and Geodesy, 2015
Dependence between flood peaks and volumes: a case study on climate and hydrological controls
L. Gaál, J. Szolgay, S. Kohnová, K. Hlavčová, J. Parajka, et al.
Hydrological Sciences Journal, 2015
Probabilistic properties of a curve number: A case study for small Polish and Slovak Carpathian Basins
Agnieszka Rutkowska, Silvia Kohnová, Kazimierz Banasik, Ján Szolgay, Beata Karabová
Journal of Mountain Science, 2015
Storm type effects on super Clausius-Clapeyron scaling of intense rainstorm properties with air temperature
P. Molnar, S. Fatichi, L. Gaál, J. Szolgay, P. Burlando
Hydrology and Earth System Sciences, 2015
A process-based analysis of the suitability of copula types for peak-volume flood relationships
J. Szolgay, L. Gaál, S. Kohnová, K. Hlavčová, R. Výleta, et al.
IAHS AISH Proceedings and Reports, 2015
A European flood database: Facilitating comprehensive flood research beyond administrative boundaries
J. Hall, B. Arheimer, G. T. Aronica, A. Bilibashi, M. Boháč, et al.
IAHS AISH Proceedings and Reports, 2015
Understanding flood regime changes in Europe: A state-of-the-art assessment
J. Hall, B. Arheimer, M. Borga, R. Brázdil, P. Claps, et al.
Hydrology and Earth System Sciences, 2014
Selection of intense rainfall events based on intensity thresholds and lightning data in Switzerland
L. Gaál, P. Molnar, J. Szolgay
Hydrology and Earth System Sciences, 2014
Wavelet based deseasonalization for modelling and forecasting of daily discharge series considering long range dependence
Elena Szolgayová, Josef Arlt, Günter Blöschl, Ján Szolgay
Journal of Hydrology and Hydromechanics, 2014
Alternative approaches to a calibration of rainfall-runoff models for a flood frequency analysis
Peter Valent, Ján Szolgay, Roman Výleta
Acta Silvatica Et Lignaria Hungarica, 2014
Documentary evidence of past floods in Europe and their utility in flood frequency estimation
T.R. Kjeldsen, N. Macdonald, M. Lang, L. Mediero, T. Albuquerque, et al.
Journal of Hydrology, 2014
Application of Artificial Neural Networks for estimating index floods
Viliam Šimor, Kamila Hlavčová, Silvia Kohnová, Ján Szolgay
Contributions to Geophysics and Geodesy, 2012
Flood timescales: Understanding the interplay of climate and catchment processes through comparative hydrology
Ladislav Gaál, Ján Szolgay, Silvia Kohnová, Juraj Parajka, Ralf Merz, et al.
Water Resources Research, 2012
Analysis of nitrate concentrations using nonlinear time series models
Peter Valent, Nicholas Howden, Ján Szolgay, Magda Komorníková
Journal of Hydrology and Hydromechanics, 2011
Soil-water-plant-atmosphere interactions on various scales
Contributions to Geophysics and Geodesy, 2011
Methodology for post-event analysis of flash floods - Svacenický Creek case study
Lotta Blaškovičová, Oliver Horvát, Kamila Hlavčová, Silvia Kohnová, Ján Szolgay
Contributions to Geophysics and Geodesy, 2011
Bayesian MCMC approach to regional flood frequency analyses involving extraordinary flood events at ungauged sites
E. Gaume, L. Gaál, A. Viglione, J. Szolgay, S. Kohnová, et al.
Journal of Hydrology, 2010
Seasonal characteristics of flood regimes across the Alpine-Carpathian range
J. Parajka, S. Kohnová, G. Bálint, M. Barbuc, M. Borga, et al.
Journal of Hydrology, 2010
On the use of the simple scaling of heavy rainfall in a regional estimation of IDF curves in Slovakia
Márta Bara, Ladislav Gaál, Silvia Kohnová, Ján Szolgay, Kamila Hlavčová
Journal of Hydrology and Hydromechanics, 2010
Inclusion of historical information in flood frequency analysis using a Bayesian MCMC technique: A case study for the power dam orlík, Czech Republic
Ladislav Gaál, Ján Szolgay, Silvia Kohnová, Kamila Hlavčová, Alberto Viglione
Contributions to Geophysics and Geodesy, 2010
Hybrid approach to delineation of homogeneous regions for regional precipitation frequency analysis
Ladislav Gaál, Ján Szolgay, Milan Lapin, Pavol Faško
Journal of Hydrology and Hydromechanics, 2009
Estimation of IDF curves of extreme rainfall by simple Scaling in Slovakia
Contributions to Geophysics and Geodesy, 2009
Comparative analysis of the seasonality of hydrological characteristics in Slovakia and Austria
J. PARAJKA, S. KOHNOVÁ, R. MERZ, J. SZOLGAY, K. HLAVČOVÁ, et al.
Hydrological Sciences Journal, 2009
The limitations of assessing impacts of land use changes on runoff with a distributed hydrological model: Case study of the Hron River
Kamila Hlavčová, Ján Szolgay, Silvia Kohnová, Oliver Horvát
Biologia, 2009
Comparison of mapping approaches of design annual maximum daily precipitation
J. Szolgay, J. Parajka, S. Kohnová, K. Hlavčová
Atmospheric Research, 2009
A compilation of data on European flash floods
Eric Gaume, Valerie Bain, Pietro Bernardara, Olivier Newinger, Mihai Barbuc, et al.
Journal of Hydrology, 2009
Mapping of gumbel extreme value distribution parameters for estimation of design precipitation totals at ungauged sites
S. Kohnová, J. Parajka, J. Szolgay, K. Hlavčová
Bioclimatology and Natural Hazards, 2009
Multilinear flood routing using empirical wave-speed discharge relationships: Case study on the Morava River
Journal of Hydrology and Hydromechanics, 2008
Regional frequency analysis of heavy precipitation totals in the High Tatras region in Slovakia for flood risk estimation
Contributions to Geophysics and Geodesy, 2008
The effect of land use changes on runoff generation in the High Tatras region
Contributions to Geophysics and Geodesy, 2008
Simulation of hydrological response to the future climate in the Hron River basin
Journal of Hydrology and Hydromechanics, 2008
A hybrid modelling framework for forecasting monthly reservoir inflows
Journal of Hydrology and Hydromechanics, 2008
Regionalisation of rainfall-runoff model parameters based on geographical location of gauged catchments
Journal of Hydrology and Hydromechanics, 2008
Region-of-influence approach to a frequency analysis of heavy precipitation in Slovakia
L. Gaál, J. Kyselý, J. Szolgay
Hydrology and Earth System Sciences, 2008
Report to IAHS
Contributions to Geophysics and Geodesy, 2007
Process-based delineation of regions for a regional frequency analysis of multi-day precipitation totals in the cold season in Slovakia
Contributions to Geophysics and Geodesy, 2007
Prediction of rainfall-runoff model parameters in ungauged catchments
IAHS AISH Publication, 2007
Testing of mapping approaches for estimation of 100-year maximum daily precipitation totals in the upper Hron River basin
Contributions to Geophysics and Geodesy, 2007
At what scales do climate variability and land cover change impact on flooding and low flows?
Günter Blöschl, Sandra Ardoin‐Bardin, Mike Bonell, Manfred Dorninger, David Goodrich, et al.
Hydrological Processes, 2007
UNESCO Working Group on the impacts of climate variability and land-cover change on flooding and low flows as a function of scale
IAHS AISH Publication, 2006
Comparison of forecasting performance of nonlinear models of hydrological time series
Jozef Komorník, Magda Komorníková, Radko Mesiar, Danuša Szökeová, Ján Szolgay
Physics and Chemistry of the Earth, 2006
Methodology for the selection of 10-day maximum precipitation totals and their statistical analysis in the upper Hron region
Contributions to Geophysics and Geodesy, 2005
An empirical method for estimating future flood risks for flood warnings
H. Hlavcova, S. Kohnova, R. Kubes, J. Szolgay, M. Zvolensky
Hydrology and Earth System Sciences, 2005
Regional estimation of design summer flood discharges in small catchments of northern Slovakia
IAHS AISH Publication, 1999
Grid-based mapping of long-term mean annual potential and actual evapotranspiration in Slovakia
IAHS AISH Publication, 1998
Regionalization of flood discharges in small catchments in Slovakia
Zeitschrift Fur Kulturtechnik Und Landentwicklung, 1996
On the use of the Dub regional flood formula on the territory of Slovakia
Vodohospodarsky Casopis Journal of Hydrology Hydromechanics, 1995
Regional analysis of extreme runoff in the Kysuca Basin. Part 1. Precipitation and flood regime
Vodohospodarsky Casopis Journal of Hydrology Hydromechanics, 1995
Regional analysis of extreme runoff in the Kysuca Basin. Part 2. Development of regional flood formulae
Vodohospodarsky Casopis Journal of Hydrology Hydromechanics, 1995
Prediction of river runoff changes due to hydropower development on the Danube at Gabcikovo
IAHS Publication International Association of Hydrological Sciences, 1991
Prediction of river runoff changes due to hydropower development on the Danube at Gabcikovo
Hydrology for the Water Management of Large River Basins Proc Symposium Vienna 1991, 1991
Prediction of river runoff changes due to hydropower station operation on the Danube
Vodohospodarsky Casopis, 1990
Modelling the impact of the Gabcikovo hydropower station on the flow regime of the Danube
Vodohospodarsky Casopis, 1989
Adaptive river flow forecasting on the Danube and Vah.
Vodohospod CAS, 1983
On the discretization of linear continuous flood routing models.
Vodohospod CAS, 1982

Jan Szolgay

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