8,815 Hits in 5.7 sec

Identifying robust large-scale flood risk mitigation strategies: A quasi-2D hydraulic model as a tool for the Po river

Attilio Castellarin, Alessio Domeneghetti, Armando Brath
2011 Physics and Chemistry of the Earth  
This study develops and tests the applicability of a quasi-2D hydraulic model to aid the identification of large-scale flood risk mitigation strategies relative to a 500-year flood event other than levee  ...  This paper focuses on the identification of large-scale flood risk mitigation strategies for the middle-lower reach of River Po, the longest Italian river and the largest in terms of streamflow.  ...  The very useful comments and suggestions of two Anonymous Reviewers are thankfully acknowledged.  ... 
doi:10.1016/j.pce.2011.02.008 fatcat:g5u7232babf75obabbefsy5uqa

Floodplain management strategies for flood attenuation in the river Po

A. Castellarin, G. Di Baldassarre, A. Brath
2010 Rivers Research and Applications: an international journal devoted to river research and management  
The analysis is performed by means of a quasi-2D hydraulic model, which has been developed on the basis of a laser-scanning DTM and a large amount of calibration data recorded during the significant flood  ...  This is a crucial task for institutions and public bodies in charge of formulating robust flood risk management strategies for the river Po.  ...  The preliminary analysis performed by Luca Galletti and Valentina Balacchi and the comments of two unknown reviewers are also acknowledged.  ... 
doi:10.1002/rra.1405 fatcat:igfcrqy7dfg5vjoh3jbht2rq2i

Integrated Inundation Modeling of Flooded Water in Coastal Cities

Eun Shin, Jaehyun Shin, Dong Rhee, Hyung-Jun Kim, Chang Song
2019 Applied Sciences  
In this study, a series of comprehensive flood simulations were performed using two numerical models: HDM-2D and FLUval Modeling ENgine (FLUMEN).  ...  The results revealed that an integrated flood analysis considering the effects of inundation flooding, river flooding, and coastal flooding required evaluation of the risk of flooding in coastal cities  ...  Conflicts of Interest: The authors declare no conflicts of interest.  ... 
doi:10.3390/app9071313 fatcat:44gy64ckrnbkfhqjj5msade2ei

Multi-Scale Target-Specified Sub-Model Approach for Fast Large-Scale High-Resolution 2D Urban Flood Modelling

Guohan Zhao, Thomas Balstrøm, Ole Mark, Marina B. Jensen
2021 Water  
As such, this approach reduces the 2D models' computing expenses significantly, thus paving the way for large-scale high-resolution 2D real-time forecasting.  ...  The accuracy of two-dimensional hydrodynamic models (2D models) is improved when high-resolution Digital Elevation Models (DEMs) are used.  ...  Acknowledgments: DHI is acknowledged for granting access to the MIKE FLOOD license.  ... 
doi:10.3390/w13030259 fatcat:xlqedicdevg3dgd5c32vyvit4e

Probability-weighted hazard maps for comparing different flood risk management strategies: a case study

Giuliano Di Baldassarre, Attilio Castellarin, Alberto Montanari, Armando Brath
2009 Natural Hazards  
Flood hazard maps were generated by combining the results of several inundation scenarios, simulated by coupling 1D-and 2D-hydrodynamic models.  ...  These maps enable one to compare different strategies for flood risk management.  ...  The authors wish to thank Jeff Neal and Guy Schumann for their valuable suggestions and comments.  ... 
doi:10.1007/s11069-009-9355-6 fatcat:nu6vkplm75dhbb4cewy55jwbje

Calibrating a High-Performance Hydrodynamic Model for Broad-Scale Flood Simulation: Application to Thames Estuary, London, UK

Asari A. Rashid, Qiuhua Liang, Richard J. Dawson, Luke S. Smith
2016 Procedia Engineering  
This work aims to test the High-Performance Integrated hydrodynamic Modelling System (HiPIMS) developed at Newcastle University for high-resolution flood simulations over a very large domain, covering  ...  The Thames Estuary, Greater London represents a particularly challenging application for broad-scale strategic analysis of flood risk.  ...  With the use of parallel computing technologies with GPUs, new hydraulic models have been developed and used to accelerate large-scale flood simulations, e.g. the 2D diffusionwave JFLOW model [8] which  ... 
doi:10.1016/j.proeng.2016.07.584 fatcat:gnbsmr7vqnehnlh7vgmwqbeoye

Performance Evaluation and Enhancements of a Flood Simulator Application for Heterogeneous HPC Environments

Ryan Marshall, Sheikh Ghafoor, Mike Rogers, Alfred Kalyanapu, Tigstu T. Dullo
2018 International Journal of Networking and Computing  
This paper presents a practical implementation of a 2D flood simulation model using hybrid distributed-parallel technologies including MPI, OpenMP, CUDA, and evaluations of its performance under various  ...  We discuss some observations that have significant effects on overall performance, including process-to-device mapping, Performance Evaluation and Enhancements of a Flood Simulator communication strategies  ...  The simulation takes 80,384 iterations to compute 14,400 seconds of simulation time. Large Random The final test case is a large-scale simulation over randomly generated terrain.  ... 
doi:10.15803/ijnc.8.2_387 fatcat:z5ynn2ngeje4ldir2ragooikxe

Integration of hillslope hydrology and 2D hydraulic modelling for natural flood management

Barry Hankin, Peter Metcalfe, Keith Beven, Nick A. Chappell
2019 Hydrology Research  
This paper presents a new framework to achieve this, based on a cascade of the Dynamic Topmodel runoff generation model and the JFlow or HEC-RAS 2D hydraulic models, with an application to the Swindale  ...  storage, we need accurate channel hydraulics to understand the changes to attenuation; to model the complex behaviour of the whole network of NFM measures, and the possibility of flood peak synchronisation  ...  The red areas above Dodd bottom are expected given the steep channel gradient Figure 7 | 7 Comparisons between two 2D hydraulic models for the baseline scenario.  ... 
doi:10.2166/nh.2019.150 fatcat:ffuukxdyxvcg5jgghaa5kb56ki

Comparing 2D capabilities of HEC-RAS and LISFLOOD-FP on complex topography

Iuliia Shustikova, Alessio Domeneghetti, Jeffrey C. Neal, Paul Bates, Attilio Castellarin
2019 Hydrological Sciences Journal  
We suggest that the specific terrain of the area can cause ambiguities in large-scale modelling, while providing plausible results in terms of the overall model performance.  ...  This study evaluates and compares two-dimensional (2D) numerical models of different complexities by testing them on a floodplain inundation event that occurred on the Secchia River (Italy).  ...  Finally, a topical issue in 2D code usage for large-scale simulations using high-resolution datasets is computational cost.  ... 
doi:10.1080/02626667.2019.1671982 fatcat:xvqvdfbg7jh25ksx7lsm257h5q

Integrating large-scale hydrology and hydrodynamics for nested flood hazard modelling from the mountains to the coast

Jannis M. Hoch, Dirk Eilander, Hiroaki Ikeuchi, Fedor Baart, Hessel C. Winsemius
2019 NHESSD  
However, results also suggest that the accuracy of coupled models still largely depends on the model forcing.  ...  Since they are often simulated by different models, coupling these models may be a viable way to increase the physicality of simulated inundation estimates.  ...  by coupling large-scale hydrology with a routing model, test B aims at investigating the benefit of nesting a high-20 resolution 1D/2D hydrodynamic model into large-scale models for improved local inundation  ... 
doi:10.5194/nhess-2019-75 fatcat:paw3gvabyvb27cbjwjskmqoele

An interactive simulation and visualization tool for flood analysis usable for practitioners

Johannes G. Leskens, Christian Kehl, Tim Tutenel, Timothy Kol, Gerwin de Haan, Guus Stelling, Elmar Eisemann
2015 Mitigation and Adaptation Strategies for Global Change  
We conclude that, despite the complexity of flood simulation models and the size of the involved data sets, our system is accessible for practitioners of flood management so that they can carry out flood  ...  Developing strategies to mitigate or to adapt to the threats of floods is an important topic in the context of climate changes.  ...  "Knowledge for Climate" 1 .  ... 
doi:10.1007/s11027-015-9651-2 pmid:30197567 pmcid:PMC6108008 fatcat:dit3wbyasnevtgn3cbxuaszydy

Hydraulic model evaluation for large-scale flood risk assessments

Daniela Falter, Sergiy Vorogushyn, Julien Lhomme, Heiko Apel, Ben Gouldby, Bruno Merz
2012 Hydrological Processes  
For such 78 large-scale applications, usually two-dimensional (2D) models with simplified shallow water 79 equations are applied.  ...  From the range of existing methods, two storage cell models are evaluated 20 to find an appropriate method for large-scale applications.  ...  Acknowledgements 540 The work reported in this paper is part of the project "Regional Flood Model for Germany". 541 We thank the Federal Agency for Cartography and Geodesy in Germany (BKG) for provision  ... 
doi:10.1002/hyp.9553 fatcat:22kbvpkltjex5giawnlwqnmpam

Rapid surface water intervention performance comparison for urban planning

James L. Webber, Guangtao Fu, David Butler
2018 Water Science and Technology  
This is demonstrated by simulating flood dynamics and comparing damage costs in 144 flood scenarios.  ...  This research responds to the challenge of selecting appropriate surface water management interventions by applying a fast assessment framework to generate evidence for comparing strategies at low resource  ...  prohibitive of quantitative performance analysis for large numbers of scenarios.  ... 
doi:10.2166/wst.2018.122 pmid:29722694 fatcat:uygy4lvttvb57ckobkgsogvnba

The German National Flood Protection Programme: Evaluating the impact of supraregional flood protection measures on extreme floods using hydrodynamic modelling

Carina Schuh, Marcus Hatz, A. Paquier, N. Rivière
2018 E3S Web of Conferences  
Within the frame of this programme, the government supports the realization of large-scale retention measures for the improvement of supra-regional flood prevention.  ...  Findings from the ad hoc study provided the government with first elements of evidence for taking its decision on the elaboration of the NHWSP programme, and supported the development of a modelling strategy  ...  The modelling strategy of the current research project answers these requirements widely: it is based on nearly full model coverage, simulates a much larger number and more extreme flood events, assumes  ... 
doi:10.1051/e3sconf/20184006014 fatcat:rpxqj6t3hncwdogqhgh4ryucua

Flood inundation assessment for the Hanoi Central Area, Vietnam under historical and extreme rainfall conditions

Pingping Luo, Dengrui Mu, Han Xue, Thanh Ngo-Duc, Kha Dang-Dinh, Kaoru Takara, Daniel Nover, Geoffrey Schladow
2018 Scientific Reports  
Numerical modelling of flood inundation offers detailed information necessary for managing flood risk in such contexts.  ...  The modeled results for a 2008 flood event with 9 referenced stations resulted in an R 2 of 0.6 compared to observations.  ...  Acknowledgements Financial support came from the Fundamental Research Funds for the Central Universities of China (300102298302), One Hundred Talent Plan of Shaanxi Province, and National Natural Science  ... 
doi:10.1038/s41598-018-30024-5 pmid:30135476 pmcid:PMC6105608 fatcat:rpot5mi5uncgvapjh4ectda73y
« Previous Showing results 1 — 15 out of 8,815 results