aalto1 untyped-item.component.html
Implications of spatially distributed rainfall design events on urban hydrological response across advection scenarios
Loading...
Access rights
openAccess
CC BY
CC BY
Creative Commons license
Except where otherwised noted, this item's license is described as openAccess
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.
Date
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
16
Series
Urban Water Journal, Volume 22, issue 10, pp. 1199-1214
Abstract
Urban catchments face high flood risks caused by heavy rainfall, largely because of altered hydrology and high imperviousness. Estimating the runoff response to such rainfall events is crucial for effective stormwater management. This study utilizes modified python version of the Short Term Ensemble Prediction System (pySTEPS) to generate stochastic design storms, mimicking spatiotemporal properties of an observed thunderstorm over an urban catchment in southern Finland. The model is parametrized using weather radar data with altered rain field advections. Simulated rainfall ensembles are fed into a storm water management model (SWMM) to assess the hydrological response across advection scenarios. Results show notable differences in rainfall accumulations depending on orientation of rainfall structures and varying advection magnitude. Changes in advection properties translate to increased peak stormwater flows and urban flooding risk for slowly moving rain structures and for rain structures with an elongated shape along the direction they are advancing. The presented approach gives insight to the effects of spatial variability of heavy rainfall on runoff generation across advection scenarios.
Description
Publisher Copyright: © 2025 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
Keywords
Other note
Citation
Lindgren, V, Tamm, O, Niemi, T, Koivusalo, H & Kokkonen, T 2025, 'Implications of spatially distributed rainfall design events on urban hydrological response across advection scenarios', Urban Water Journal, vol. 22, no. 10, pp. 1199-1214. https://doi.org/10.1080/1573062X.2025.2541797