How Changes in Future Precipitation Impact Flood Frequencies: A Quantile‐Quantile Mapping Approach
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| Publicado no: | Water Resources Research vol. 61, no. 7 (Jul 1, 2025) |
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| Autor principal: | |
| Outros Autores: | , , , , |
| Publicado em: |
John Wiley & Sons, Inc.
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| Acesso em linha: | Citation/Abstract Full Text Full Text - PDF |
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| 024 | 7 | |a 10.1029/2024WR038471 |2 doi | |
| 035 | |a 3234063674 | ||
| 045 | 0 | |b d20250701 | |
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| 100 | 1 | |a Cafiero, Luigi |u Dipartimento di Ingegneria dell’Ambiente, del Territorio e delle Infrastrutture, Politecnico di Torino, Turin, Italy | |
| 245 | 1 | |a How Changes in Future Precipitation Impact Flood Frequencies: A Quantile‐Quantile Mapping Approach | |
| 260 | |b John Wiley & Sons, Inc. |c Jul 1, 2025 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a Flood risk management institutions and practitioners need reliable and easy‐to‐use approaches that incorporate the changing climate conditions into flood predictions in ungauged basins. The present work aims at developing an operative procedure to include the expected variation in precipitation extremes in flood frequency analysis. We relate Flood Frequency Curves (FFC) and Intensity‐Duration‐Frequency curves through quantile‐quantile relationships, whose slopes represent the elasticity of floods to precipitation extremes. Assuming that the percentage variations of precipitation and flood quantiles are linked by the quantile‐quantile relationship, we obtain modified FFC accounting for the projected changes in precipitation extremes. The methodology is validated in a virtual world inspired by the Rational Formula approach, where flood events are the result of the combination of two jointly distributed random variables: extreme precipitation and peak runoff coefficient. The proposed methodology is found to be reliable for large return periods in basins where flood changes are dominated by precipitation changes rather than variations in the runoff generation process. To illustrate its practical usefulness, the procedure is applied to 227 catchments within the Po River basin in Italy using projected percentage changes of precipitation extremes from CMIP5 CORDEX simulations for the end of the century (2071–2100) and RCP 8.5 scenario. With projected changes in 100‐year precipitation ranging from 5% to 50%, the corresponding variations in 100‐year flood magnitudes are expected to span a broader range (10%–90%). A substantial heterogeneity in catchment responses to rainfall changes exists due to different elasticities of floods to precipitation extremes. | |
| 653 | |a River basins | ||
| 653 | |a Extreme weather | ||
| 653 | |a Watersheds | ||
| 653 | |a Flood frequency | ||
| 653 | |a Quantiles | ||
| 653 | |a Future precipitation | ||
| 653 | |a Risk management | ||
| 653 | |a Runoff | ||
| 653 | |a Flood risk | ||
| 653 | |a Floods | ||
| 653 | |a Precipitation | ||
| 653 | |a Heterogeneity | ||
| 653 | |a Climate change | ||
| 653 | |a Flood forecasting | ||
| 653 | |a Elasticity | ||
| 653 | |a Random variables | ||
| 653 | |a Variation | ||
| 653 | |a Flood frequency analysis | ||
| 653 | |a Runoff coefficient | ||
| 653 | |a Climatic conditions | ||
| 653 | |a River discharge | ||
| 653 | |a Frequency analysis | ||
| 653 | |a Flood predictions | ||
| 653 | |a Catchments | ||
| 653 | |a Flood management | ||
| 653 | |a Rainfall | ||
| 653 | |a Environmental risk | ||
| 653 | |a Precipitation variations | ||
| 653 | |a Climate prediction | ||
| 653 | |a Environmental | ||
| 700 | 1 | |a Bertola, Miriam |u Institute of Hydraulic Engineering and Water Resources Management, Vienna University of Technology, Vienna, Austria | |
| 700 | 1 | |a Mazzoglio, Paola |u Dipartimento di Ingegneria dell’Ambiente, del Territorio e delle Infrastrutture, Politecnico di Torino, Turin, Italy | |
| 700 | 1 | |a Blöschl, Günter |u Institute of Hydraulic Engineering and Water Resources Management, Vienna University of Technology, Vienna, Austria | |
| 700 | 1 | |a Laio, Francesco |u Dipartimento di Ingegneria dell’Ambiente, del Territorio e delle Infrastrutture, Politecnico di Torino, Turin, Italy | |
| 700 | 1 | |a Viglione, Alberto |u Dipartimento di Ingegneria dell’Ambiente, del Territorio e delle Infrastrutture, Politecnico di Torino, Turin, Italy | |
| 773 | 0 | |t Water Resources Research |g vol. 61, no. 7 (Jul 1, 2025) | |
| 786 | 0 | |d ProQuest |t ABI/INFORM Global | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/3234063674/abstract/embedded/ZKJTFFSVAI7CB62C?source=fedsrch |
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| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/3234063674/fulltextPDF/embedded/ZKJTFFSVAI7CB62C?source=fedsrch |