Articles | Volume 386
https://doi.org/10.5194/piahs-386-353-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/piahs-386-353-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Preface
| 
23 Jan 2025
Preface |
| 23 Jan 2025
| 23 Jan 2025
Preface: ICFM9 – River Basin Disaster Resilience and Sustainability by All
Toshio Koike
CORRESPONDING AUTHOR
International Centre for Water Hazard and Risk Management (ICHARM), Tsukuba, Japan
Shinji Egashira
International Centre for Water Hazard and Risk Management (ICHARM), Tsukuba, Japan
Miho Ohara
International Centre for Water Hazard and Risk Management (ICHARM), Tsukuba, Japan
Interfaculty Initiative in Information Studies, the University of Tokyo, Tokyo, Japan
Abdul Wahid Mohamed Rasmy
International Centre for Water Hazard and Risk Management (ICHARM), Tsukuba, Japan
Tomoki Ushiyama
International Centre for Water Hazard and Risk Management (ICHARM), Tsukuba, Japan
Mamoru Miyamoto
International Centre for Water Hazard and Risk Management (ICHARM), Tsukuba, Japan
Daisuke Harada
International Centre for Water Hazard and Risk Management (ICHARM), Tsukuba, Japan
Kensuke Naito
International Centre for Water Hazard and Risk Management (ICHARM), Tsukuba, Japan
Christophe Cudennec
SAS, Institut Agro, INRAE, Rennes, France
Svenja Fischer
Hydrology and Environmental Hydraulics, Wageningen University & Research, Wageningen, the Netherlands
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Roshan Indika Jayasinghe, Mohamad Rasmy, and Toshio Koike
Proc. IAHS, 386, 291–297, https://doi.org/10.5194/piahs-386-291-2024, https://doi.org/10.5194/piahs-386-291-2024, 2024
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This focused on my experience as an Engineer in the Mahaweli River basin. Simultaneously, Floods & droughts are the major problems in this basin, I tried to use the upper reservoirs to control these disasters by finding the reasons and ways to manage these difficulties by using gathered knowledge at ICHARM. This helps me to understand the conflict among stakeholders, and find the reasons and solutions for efficient water management in the system, by developing a physical model based on policies.
Akshay Kowlesser, Mohamed Rasmy, and Toshio Koike
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A flood management plan for the Grand River North West basin in Mauritius was developed to address the risks associated with climate change-induced flooding. Historical and projected climatic data were analyzed to discern trends in flood occurrence. A hydrological model was constructed to simulate the basin’s response to extreme flood events, and a Geographic Information System-based model was created for flood vulnerability map using exposure, susceptibility and resilience indicators.
Abdul Wahid Mohamed Rasmy, Maksym Gusyev, Katsunori Tamakawa, Miho Ohara, and Toshio Koike
Proc. IAHS, 386, 265–270, https://doi.org/10.5194/piahs-386-265-2024, https://doi.org/10.5194/piahs-386-265-2024, 2024
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To support decision-makers in flood disaster management, a real-time flood monitoring system was established in the Niger and Volta basins under the Water disaster platform to enhance climate resilience in Africa (WADiRE-Africa). The system utilized real-time satellite rainfall data to bridge the gap between data scarcity and inaccessibility and a hydrological model to simulate the inundation extents at basin and hotspot scales. Presently, the prototype system is under testing in both basins.
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The study provides valuable insights into the use of cutting-edge technologies for real-time extreme flow modelling and disaster risk reduction strategies in data-scarce regions. The methodology presented here improved forecasting lead time and accuracy of real-time satellite precipitations. This highlights the practical implications of public domain datasets and models for informed decision-making. The study can complement informed decision-making for flood preparedness in transboundary basins.
Ralph Allen Acierto, Tomoki Ushiyama, and Toshio Koike
Proc. IAHS, 386, 209–216, https://doi.org/10.5194/piahs-386-209-2024, https://doi.org/10.5194/piahs-386-209-2024, 2024
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The study evaluated how well a GCM can reproduce the past weather patterns linked to the heavy rainfall events in Davao river basin by using raingauge and ERA5 data as reference. Our findings show that MRI-AGCM 3.2S reproduced similar weather patterns in JJA and DJF seasons as compared to ERA5 but due to small differences in configuration lead to biases in the local rainfall. This method can be also applied to other river basins and for evaluating how the future local rainfall will change.
Osamu Itagaki, Miho Ohara, and Toshio Koike
Proc. IAHS, 386, 153–158, https://doi.org/10.5194/piahs-386-153-2024, https://doi.org/10.5194/piahs-386-153-2024, 2024
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This paper presents a trial estimation result of quantitative flood damage reduction effect by installing a spillway on a riverine levee in a protected area for promoting the “River Basin Disaster Resilience and Sustainability by All” (Ryuuiki-chisui) initiative which is strongly promoted in Japan. The result shows that flood damage is considerably reduced, e.g. average annual damage to paddy fields in the area can be expected to decrease, although the inundation frequency will increase.
Roshan Indika Jayasinghe, Mohamad Rasmy, and Toshio Koike
Proc. IAHS, 386, 291–297, https://doi.org/10.5194/piahs-386-291-2024, https://doi.org/10.5194/piahs-386-291-2024, 2024
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This focused on my experience as an Engineer in the Mahaweli River basin. Simultaneously, Floods & droughts are the major problems in this basin, I tried to use the upper reservoirs to control these disasters by finding the reasons and ways to manage these difficulties by using gathered knowledge at ICHARM. This helps me to understand the conflict among stakeholders, and find the reasons and solutions for efficient water management in the system, by developing a physical model based on policies.
Akshay Kowlesser, Mohamed Rasmy, and Toshio Koike
Proc. IAHS, 386, 271–276, https://doi.org/10.5194/piahs-386-271-2024, https://doi.org/10.5194/piahs-386-271-2024, 2024
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A flood management plan for the Grand River North West basin in Mauritius was developed to address the risks associated with climate change-induced flooding. Historical and projected climatic data were analyzed to discern trends in flood occurrence. A hydrological model was constructed to simulate the basin’s response to extreme flood events, and a Geographic Information System-based model was created for flood vulnerability map using exposure, susceptibility and resilience indicators.
Abdul Wahid Mohamed Rasmy, Maksym Gusyev, Katsunori Tamakawa, Miho Ohara, and Toshio Koike
Proc. IAHS, 386, 265–270, https://doi.org/10.5194/piahs-386-265-2024, https://doi.org/10.5194/piahs-386-265-2024, 2024
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To support decision-makers in flood disaster management, a real-time flood monitoring system was established in the Niger and Volta basins under the Water disaster platform to enhance climate resilience in Africa (WADiRE-Africa). The system utilized real-time satellite rainfall data to bridge the gap between data scarcity and inaccessibility and a hydrological model to simulate the inundation extents at basin and hotspot scales. Presently, the prototype system is under testing in both basins.
Badri Bhakta Shrestha, Mohamed Rasmy, Tomoki Ushiyama, Ralph Allen Acierto, Takatoshi Kawamoto, Masakazu Fujikane, Hiroyuki Ito, and Takafumi Shinya
Proc. IAHS, 386, 127–132, https://doi.org/10.5194/piahs-386-127-2024, https://doi.org/10.5194/piahs-386-127-2024, 2024
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A strong correlation between extreme rainfall and damaged paddy area in the past period was observed and the floods may affect rice paddies when 1-d or 4-d rainfall exceeds 25 mm or 71 mm. Flood inundation and rice crop damage might be more severe in the future due to climate change than in the past period. The average rice crop damage per year is approximately two times higher for the future period than for past period, suggesting more serious rice crop damage in future due to climate change.
Muhammad Masood and Abdul Wahid Mohamed Rasmy
Proc. IAHS, 386, 27–32, https://doi.org/10.5194/piahs-386-27-2024, https://doi.org/10.5194/piahs-386-27-2024, 2024
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Early flash floods result from the abundant precipitation frequently lead to significant losses of agriculture in the north-eastern region of Bangladesh. Allocating necessary storage to provide spaces for excess water can save the crop. This study calculates the necessary storage with a new method: Flood duration curve (FDC); estimates water storage capacity by using satellite-based citizen science haor volume estimation technique and finally, investigates an alternate solution of the problem.
Mihretab G. Tedla, Mohamed Rasmy, Toshio Koike, and Li Zhou
Proc. IAHS, 386, 223–228, https://doi.org/10.5194/piahs-386-223-2024, https://doi.org/10.5194/piahs-386-223-2024, 2024
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The study provides valuable insights into the use of cutting-edge technologies for real-time extreme flow modelling and disaster risk reduction strategies in data-scarce regions. The methodology presented here improved forecasting lead time and accuracy of real-time satellite precipitations. This highlights the practical implications of public domain datasets and models for informed decision-making. The study can complement informed decision-making for flood preparedness in transboundary basins.
Md. Majadur Rahman, Daisuke Harada, and Shinji Egashira
Proc. IAHS, 386, 109–114, https://doi.org/10.5194/piahs-386-109-2024, https://doi.org/10.5194/piahs-386-109-2024, 2024
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Robin K. Biswas, Shinji Egashira, and Daisuke Harada
Proc. IAHS, 386, 229–235, https://doi.org/10.5194/piahs-386-229-2024, https://doi.org/10.5194/piahs-386-229-2024, 2024
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Ralph Allen Acierto, Tomoki Ushiyama, and Toshio Koike
Proc. IAHS, 386, 209–216, https://doi.org/10.5194/piahs-386-209-2024, https://doi.org/10.5194/piahs-386-209-2024, 2024
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The study evaluated how well a GCM can reproduce the past weather patterns linked to the heavy rainfall events in Davao river basin by using raingauge and ERA5 data as reference. Our findings show that MRI-AGCM 3.2S reproduced similar weather patterns in JJA and DJF seasons as compared to ERA5 but due to small differences in configuration lead to biases in the local rainfall. This method can be also applied to other river basins and for evaluating how the future local rainfall will change.
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Daisuke Harada and Shinji Egashira
Proc. IAHS, 386, 159–164, https://doi.org/10.5194/piahs-386-159-2024, https://doi.org/10.5194/piahs-386-159-2024, 2024
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This study proposes methods to create hazard maps for flood disasters with sediment and driftwood using a watershed model and a 2-D flood flow model, and applied the methods to the Akatani river flood disaster in 2017 to discuss their applicability and validity.
Leandro G. Kuhlmann, Mamoru Miyamoto, Julio C. Lana, and Tiago Antonelli
Proc. IAHS, 386, 7–11, https://doi.org/10.5194/piahs-386-7-2024, https://doi.org/10.5194/piahs-386-7-2024, 2024
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Leigh Richard MacPherson, Arne Arns, Svenja Fischer, Fernando Javier Méndez, and Jürgen Jensen
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Leigh R. MacPherson, Arne Arns, Svenja Fischer, Fernando J. Méndez, and Jürgen Jensen
Nat. Hazards Earth Syst. Sci. Discuss., https://doi.org/10.5194/nhess-2021-406, https://doi.org/10.5194/nhess-2021-406, 2022
Preprint withdrawn
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Ernest Amoussou, Gil Mahe, Oula Amrouni, Ansoumana Bodian, Christophe Cudennec, Stephan Dietrich, Domiho Japhet Kodja, and Expédit Wilfrid Vissin
Proc. IAHS, 384, 1–4, https://doi.org/10.5194/piahs-384-1-2021, https://doi.org/10.5194/piahs-384-1-2021, 2021
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This short paper is the preface of the PIAHS volume of the IAHS/UNESCO FRIEND-Water conference of Cotonou in November 2021.
Stéphane Ecrepont and Christophe Cudennec
Proc. IAHS, 383, 129–134, https://doi.org/10.5194/piahs-383-129-2020, https://doi.org/10.5194/piahs-383-129-2020, 2020
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The sensitivity of a geomorphology-based hydrological modelling is evaluated according to four DEMs from 5 m to 50 m resolution in Brittany, France. A set of 8 basins (5–565.7 km2) is used in a pseudo-ungauged context to explore the potential of Prediction in Ungauged Basin (PUB). The results show that a coarse-worldwide DEM such as SRTM (25 m) supported similar performances than the finer one available from the French mapping institute.
Zhongbo Yu, Chunhui Lu, Jianyuan Cai, Dazheng Yu, Gil Mahe, Anil Mishra, Christophe Cudennec, Henny A. J. Van Lanen, Didier Orange, and Abou Amani
Proc. IAHS, 383, 3–4, https://doi.org/10.5194/piahs-383-3-2020, https://doi.org/10.5194/piahs-383-3-2020, 2020
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The 8th Global FRIEND conference highlighted the advance in hydrological science and innovation in water management. 52 accepted papers cover study areas in precipitation and climate impact; observation, analysis and simulations of hydrologic processes; floods in the changing environments; drought monitoring and analysis; water resources and environmental impacts. The outcome of the conference presented in the proceedings will be shared and discussed widely among UNESCO IHP networks.
Nevil Quinn, Günter Blöschl, András Bárdossy, Attilio Castellarin, Martyn Clark, Christophe Cudennec, Demetris Koutsoyiannis, Upmanu Lall, Lubomir Lichner, Juraj Parajka, Christa D. Peters-Lidard, Graham Sander, Hubert Savenije, Keith Smettem, Harry Vereecken, Alberto Viglione, Patrick Willems, Andy Wood, Ross Woods, Chong-Yu Xu, and Erwin Zehe
Proc. IAHS, 380, 3–8, https://doi.org/10.5194/piahs-380-3-2018, https://doi.org/10.5194/piahs-380-3-2018, 2018
Chenge An, Andrew J. Moodie, Hongbo Ma, Xudong Fu, Yuanfeng Zhang, Kensuke Naito, and Gary Parker
Earth Surf. Dynam., 6, 989–1010, https://doi.org/10.5194/esurf-6-989-2018, https://doi.org/10.5194/esurf-6-989-2018, 2018
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In most models of river morphodynamics, sediment mass conservation is described by the Exner equation, which may take either the flux form or the entrainment form. Here we compare the two forms of the Exner equation under conditions typical of the lower Yellow River. We find that when using a single sediment grain size, there is little difference between the two forms. But when considering sediment mixtures, the two forms will show very different patterns of grain sorting.
Nevil Quinn, Günter Blöschl, András Bárdossy, Attilio Castellarin, Martyn Clark, Christophe Cudennec, Demetris Koutsoyiannis, Upmanu Lall, Lubomir Lichner, Juraj Parajka, Christa D. Peters-Lidard, Graham Sander, Hubert Savenije, Keith Smettem, Harry Vereecken, Alberto Viglione, Patrick Willems, Andy Wood, Ross Woods, Chong-Yu Xu, and Erwin Zehe
Hydrol. Earth Syst. Sci., 22, 5735–5739, https://doi.org/10.5194/hess-22-5735-2018, https://doi.org/10.5194/hess-22-5735-2018, 2018
Demetris Koutsoyiannis, Günter Blöschl, András Bárdossy, Christophe Cudennec, Denis Hughes, Alberto Montanari, Insa Neuweiler, and Hubert Savenije
Hydrol. Earth Syst. Sci., 20, 1081–1084, https://doi.org/10.5194/hess-20-1081-2016, https://doi.org/10.5194/hess-20-1081-2016, 2016
S. Fischer, R. Fried, and A. Schumann
Hydrol. Earth Syst. Sci. Discuss., https://doi.org/10.5194/hessd-12-8553-2015, https://doi.org/10.5194/hessd-12-8553-2015, 2015
Manuscript not accepted for further review
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In the last few years to occurence of extraordinary extreme flood events rised the question for a suitable statistical model to describe this flood behaviour and give a possibility for the calculation of high quantiles. Since the occurence of these extreme events in very short time series (less than 100 years) could influence the statistical estimators leading to a too high estimation we want to use robust estimators to give a moderate weighting to these floods. The results are given here.
H. Boudhraâ and C. Cudennec
Proc. IAHS, 369, 169–173, https://doi.org/10.5194/piahs-369-169-2015, https://doi.org/10.5194/piahs-369-169-2015, 2015
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Retrospective forensics of the 1969 extreme hydrometeorological events in Tunisia – Tunisia experienced extreme rainfall-flood events in September and October 1969. These events have been gauged and reconstituted in such a detailed manner that they are now the best known extreme events in Maghreb. The retrospective forensics of these events are much valuable not only in terms of hydrological and geomorphological knowledge, but also in terms of actual and future water and infrastructure.
