Reducing flood risk by effective use of flood‐peak polders: A case study of the Tisza River

Abstract Between 1998 and 2006 a series of extreme flood events took place on the Tisza River and its tributaries. In Hungary, this triggered the development of flood‐peak polders as a more cost‐efficient solution of defense compared to raising the dikes. The recent analysis applies Monte‐Carlo simu...

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Main Authors: Gábor Ungvári, András Kis
Format: Article
Language:English
Published: Wiley 2022-09-01
Series:Journal of Flood Risk Management
Subjects:
Online Access:https://doi.org/10.1111/jfr3.12823
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author Gábor Ungvári
András Kis
author_facet Gábor Ungvári
András Kis
author_sort Gábor Ungvári
collection DOAJ
description Abstract Between 1998 and 2006 a series of extreme flood events took place on the Tisza River and its tributaries. In Hungary, this triggered the development of flood‐peak polders as a more cost‐efficient solution of defense compared to raising the dikes. The recent analysis applies Monte‐Carlo simulation‐based quantified risk calculations with a cost–benefit type comparison. Results indicate that compared to the originally planned, 100‐year return frequency flood that threats to topple the levees, lower flood levels already provide economic justification for polder use. Apart from the optimal timing of opening the floodgates, the controlled inundation of polders requires the consideration of its cost–benefit effects as well. The development of the economic decision‐support system for the controlled use of the flood‐peak polders along the Tisza River provides an insight into the efficiency gains that a more informed, quantitative economic analysis can offer in risk reduction. The analysis reveals the potential for more efficient management of flood polders. The decision support of controlled polder inundation includes all the necessary information elements for the cross‐sectoral comparability of impacts that is the foundation for any multi‐purpose land management scheme that enables nature‐based solutions.
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spelling doaj.art-eb1ea234f8464d3cb3cec1afb9e938b82022-12-22T03:44:22ZengWileyJournal of Flood Risk Management1753-318X2022-09-01153n/an/a10.1111/jfr3.12823Reducing flood risk by effective use of flood‐peak polders: A case study of the Tisza RiverGábor Ungvári0András Kis1Regional Center for Energy Policy Research Corvinus University of Budapest Budapest HungaryRegional Center for Energy Policy Research Corvinus University of Budapest Budapest HungaryAbstract Between 1998 and 2006 a series of extreme flood events took place on the Tisza River and its tributaries. In Hungary, this triggered the development of flood‐peak polders as a more cost‐efficient solution of defense compared to raising the dikes. The recent analysis applies Monte‐Carlo simulation‐based quantified risk calculations with a cost–benefit type comparison. Results indicate that compared to the originally planned, 100‐year return frequency flood that threats to topple the levees, lower flood levels already provide economic justification for polder use. Apart from the optimal timing of opening the floodgates, the controlled inundation of polders requires the consideration of its cost–benefit effects as well. The development of the economic decision‐support system for the controlled use of the flood‐peak polders along the Tisza River provides an insight into the efficiency gains that a more informed, quantitative economic analysis can offer in risk reduction. The analysis reveals the potential for more efficient management of flood polders. The decision support of controlled polder inundation includes all the necessary information elements for the cross‐sectoral comparability of impacts that is the foundation for any multi‐purpose land management scheme that enables nature‐based solutions.https://doi.org/10.1111/jfr3.12823controlled inundationcost–benefit analysisflood peak polderflood risk managementMonte‐Carlo simulationnature‐based solutions
spellingShingle Gábor Ungvári
András Kis
Reducing flood risk by effective use of flood‐peak polders: A case study of the Tisza River
Journal of Flood Risk Management
controlled inundation
cost–benefit analysis
flood peak polder
flood risk management
Monte‐Carlo simulation
nature‐based solutions
title Reducing flood risk by effective use of flood‐peak polders: A case study of the Tisza River
title_full Reducing flood risk by effective use of flood‐peak polders: A case study of the Tisza River
title_fullStr Reducing flood risk by effective use of flood‐peak polders: A case study of the Tisza River
title_full_unstemmed Reducing flood risk by effective use of flood‐peak polders: A case study of the Tisza River
title_short Reducing flood risk by effective use of flood‐peak polders: A case study of the Tisza River
title_sort reducing flood risk by effective use of flood peak polders a case study of the tisza river
topic controlled inundation
cost–benefit analysis
flood peak polder
flood risk management
Monte‐Carlo simulation
nature‐based solutions
url https://doi.org/10.1111/jfr3.12823
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