Comparative analysis of rainfall event characteristics and rainfall erosivity between two experimental plots in Austria and Slovenia

Study region: This study investigated rainfall at two locations in the Danube Basin, the Hydrological Open Air Laboratory (HOAL) agricultural catchment in Petzenkirchen, Austria and an urban experimental plot in Ljubljana, Slovenia. Study focus: The variability of rainfall characteristics and rainfa...

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Main Authors: Borbala Szeles, Juraj Parajka, Mojca Šraj, Günter Blöschl, Dušan Marjanović, Nejc Bezak, Klaudija Lebar, Andrej Vidmar, Peter Strauss, Carmen Krammer, Elmar Schmaltz, Patrick Hogan, Gerhard Rab, Katarina Zabret
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:Journal of Hydrology: Regional Studies
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Online Access:http://www.sciencedirect.com/science/article/pii/S2214581825001788
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author Borbala Szeles
Juraj Parajka
Mojca Šraj
Günter Blöschl
Dušan Marjanović
Nejc Bezak
Klaudija Lebar
Andrej Vidmar
Peter Strauss
Carmen Krammer
Elmar Schmaltz
Patrick Hogan
Gerhard Rab
Katarina Zabret
author_facet Borbala Szeles
Juraj Parajka
Mojca Šraj
Günter Blöschl
Dušan Marjanović
Nejc Bezak
Klaudija Lebar
Andrej Vidmar
Peter Strauss
Carmen Krammer
Elmar Schmaltz
Patrick Hogan
Gerhard Rab
Katarina Zabret
author_sort Borbala Szeles
collection DOAJ
description Study region: This study investigated rainfall at two locations in the Danube Basin, the Hydrological Open Air Laboratory (HOAL) agricultural catchment in Petzenkirchen, Austria and an urban experimental plot in Ljubljana, Slovenia. Study focus: The variability of rainfall characteristics and rainfall erosivity were explored using measurements of precipitation and drop size distributions in the period 2014–2018. Annual and seasonal rainfall event characteristics were analyzed for each site and comparatively assessed using hierarchical clustering. Annual and seasonal variability of rainfall erosivity was compared between the plots. New hydrological insights for the region: Despite having the same Köppen-Geiger climate classification, differences were found between the sites. The long-term average annual precipitation in Ljubljana was almost twice as high as in the HOAL. According to the clustering analysis, larger and more intense rainfall events occurred in Ljubljana than in the HOAL. The average drop sizes and velocities tended to be lower in Ljubljana but the range of drop size distributions was larger in Ljubljana than in the HOAL. The seasonalities of rainfall event characteristics and rainfall erosivity were similar at the sites. Rainfall intensities tended to peak in summer when rainfall durations were shorter, and larger and faster drops were observed. Rainfall erosivity was between 2 and 7 times larger in Ljubljana than in the HOAL because of the more intense rainfall and single faster and larger drops during events.
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spelling doaj-art-0ecaca393d4e4202b32b91b33a509e282025-08-20T02:25:28ZengElsevierJournal of Hydrology: Regional Studies2214-58182025-06-015910235310.1016/j.ejrh.2025.102353Comparative analysis of rainfall event characteristics and rainfall erosivity between two experimental plots in Austria and SloveniaBorbala Szeles0Juraj Parajka1Mojca Šraj2Günter Blöschl3Dušan Marjanović4Nejc Bezak5Klaudija Lebar6Andrej Vidmar7Peter Strauss8Carmen Krammer9Elmar Schmaltz10Patrick Hogan11Gerhard Rab12Katarina Zabret13Institute of Hydraulic Engineering and Water Resources Management, Faculty of Civil and Environmental Engineering, Technical University of Vienna, Karlsplatz 13 E222/2, Vienna 1040, Austria; Corresponding author.Institute of Hydraulic Engineering and Water Resources Management, Faculty of Civil and Environmental Engineering, Technical University of Vienna, Karlsplatz 13 E222/2, Vienna 1040, AustriaChair of Hydrology and Hydraulic Engineering, Faculty of Civil and Geodetic Engineering, University of Ljubljana, Jamova cesta 2, Ljubljana 1000, SloveniaInstitute of Hydraulic Engineering and Water Resources Management, Faculty of Civil and Environmental Engineering, Technical University of Vienna, Karlsplatz 13 E222/2, Vienna 1040, AustriaInstitute of Hydraulic Engineering and Water Resources Management, Faculty of Civil and Environmental Engineering, Technical University of Vienna, Karlsplatz 13 E222/2, Vienna 1040, AustriaChair of Hydrology and Hydraulic Engineering, Faculty of Civil and Geodetic Engineering, University of Ljubljana, Jamova cesta 2, Ljubljana 1000, SloveniaChair of Hydrology and Hydraulic Engineering, Faculty of Civil and Geodetic Engineering, University of Ljubljana, Jamova cesta 2, Ljubljana 1000, SloveniaChair of Hydrology and Hydraulic Engineering, Faculty of Civil and Geodetic Engineering, University of Ljubljana, Jamova cesta 2, Ljubljana 1000, SloveniaInstitute for Land and Water Management Research, Federal Agency of Water Management, Pollnbergstraße 1, Petzenkirchen 3252, AustriaInstitute for Land and Water Management Research, Federal Agency of Water Management, Pollnbergstraße 1, Petzenkirchen 3252, AustriaInstitute for Land and Water Management Research, Federal Agency of Water Management, Pollnbergstraße 1, Petzenkirchen 3252, AustriaInstitute of Hydraulic Engineering and Water Resources Management, Faculty of Civil and Environmental Engineering, Technical University of Vienna, Karlsplatz 13 E222/2, Vienna 1040, AustriaInstitute of Hydraulic Engineering and Water Resources Management, Faculty of Civil and Environmental Engineering, Technical University of Vienna, Karlsplatz 13 E222/2, Vienna 1040, AustriaChair of Hydrology and Hydraulic Engineering, Faculty of Civil and Geodetic Engineering, University of Ljubljana, Jamova cesta 2, Ljubljana 1000, SloveniaStudy region: This study investigated rainfall at two locations in the Danube Basin, the Hydrological Open Air Laboratory (HOAL) agricultural catchment in Petzenkirchen, Austria and an urban experimental plot in Ljubljana, Slovenia. Study focus: The variability of rainfall characteristics and rainfall erosivity were explored using measurements of precipitation and drop size distributions in the period 2014–2018. Annual and seasonal rainfall event characteristics were analyzed for each site and comparatively assessed using hierarchical clustering. Annual and seasonal variability of rainfall erosivity was compared between the plots. New hydrological insights for the region: Despite having the same Köppen-Geiger climate classification, differences were found between the sites. The long-term average annual precipitation in Ljubljana was almost twice as high as in the HOAL. According to the clustering analysis, larger and more intense rainfall events occurred in Ljubljana than in the HOAL. The average drop sizes and velocities tended to be lower in Ljubljana but the range of drop size distributions was larger in Ljubljana than in the HOAL. The seasonalities of rainfall event characteristics and rainfall erosivity were similar at the sites. Rainfall intensities tended to peak in summer when rainfall durations were shorter, and larger and faster drops were observed. Rainfall erosivity was between 2 and 7 times larger in Ljubljana than in the HOAL because of the more intense rainfall and single faster and larger drops during events.http://www.sciencedirect.com/science/article/pii/S2214581825001788RainfallDisdrometerRaindrop sizeRaindrop velocityErosionClimate type
spellingShingle Borbala Szeles
Juraj Parajka
Mojca Šraj
Günter Blöschl
Dušan Marjanović
Nejc Bezak
Klaudija Lebar
Andrej Vidmar
Peter Strauss
Carmen Krammer
Elmar Schmaltz
Patrick Hogan
Gerhard Rab
Katarina Zabret
Comparative analysis of rainfall event characteristics and rainfall erosivity between two experimental plots in Austria and Slovenia
Journal of Hydrology: Regional Studies
Rainfall
Disdrometer
Raindrop size
Raindrop velocity
Erosion
Climate type
title Comparative analysis of rainfall event characteristics and rainfall erosivity between two experimental plots in Austria and Slovenia
title_full Comparative analysis of rainfall event characteristics and rainfall erosivity between two experimental plots in Austria and Slovenia
title_fullStr Comparative analysis of rainfall event characteristics and rainfall erosivity between two experimental plots in Austria and Slovenia
title_full_unstemmed Comparative analysis of rainfall event characteristics and rainfall erosivity between two experimental plots in Austria and Slovenia
title_short Comparative analysis of rainfall event characteristics and rainfall erosivity between two experimental plots in Austria and Slovenia
title_sort comparative analysis of rainfall event characteristics and rainfall erosivity between two experimental plots in austria and slovenia
topic Rainfall
Disdrometer
Raindrop size
Raindrop velocity
Erosion
Climate type
url http://www.sciencedirect.com/science/article/pii/S2214581825001788
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