Classification of Czech urban areas by their characteristics in link to potential of retention of heavy rainfall

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00372272" target="_blank" >RIV/68407700:21110/23:00372272 - isvavai.cz</a>

Alternative codes found

RIV/00020711:_____/23:10155038

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Classification of Czech urban areas by their characteristics in link to potential of retention of heavy rainfall

Original language description

Urban areas are increasingly affected by extreme hydrological events such as flash floods and droughts. However, there is currently a lack of design rainfall information for safe management of flash floods, particularly for short durations (5-10 min) and for changes in rainfall extremes with shorter recurrence periods (2, 5, and 10 years). Adaptation measures are being introduced to manage water scarcity during droughts, they are not being evaluated for their effectiveness in the face of ongoing and future climate change. This contribution introduces part of ongoing project that have three main tasks. a) Estimating changes in precipitation in link to climate changes for a range of design precipitation with different recurrence intervals. Statistical models with regional/global climate model simulations are used to estimate changes in precipitation extremes with durations of 1-24 hours. A geostatistical model to describe changes in intensity-duration-frequency (IDF) curves are used for the Czech Republic. b) The impacts of rainfall extremes, the potential for retention and the need to use water from heavy rainfall also depend on the nature and extent of urban areas of the specific area under consideration. Assessing the impact of climate change on adaptation measures in urban areas and quantifying and evaluating them on pilot sites. Selection of this pilot sites are based on classification of urban areas and their contributed headwater watershed. The methodology and preliminary results are presented in this contribution. c) Adaptation measures to increase the volume of water retained in the area during heavy rainfall. The project in practical also propose typical measures to increase the volume of water retained in the area during heavy rainfall, such as temporary retention basins and flood parks. Developing a methodology for technical protection against flooding due to heavy rainfall, including the possibility of creating temporary retention volumes in the area. Methodological support for the local government and stakeholders for design of retention areas and emergency outflow paths, and document the impact of climate change and the evaluation of the balance in urbanized areas.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

10501 - Hydrology

Project

<a href="/en/project/SS06010386" target="_blank" >SS06010386: Adaptation of urban areas to flash floods and droughts</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů