18,317 Hits in 11.8 sec

Computing, a Powerful Tool for Improving the Parameters Simulation Quality in Flood Prediction

Adriana Gaudiani, Emilio Luque, Pablo García, Mariano Re, Marcelo Naiouf, Armando Di Giusti
2014 Procedia Computer Science  
The tuning methodology, through a parametric simulation technique, implements a first stage to find an adjusted set of critical parameters which will be used to validate the predictive capability of the  ...  In this paper, we address input parameter uncertainty toward providing a methodology to tune a flood simulator and achieve lower error between simulated and observed results.  ...  Informatics Research Institute III-LIDI, Faculty of Computer Science, Universidad Nacional de La Plata.  ... 
doi:10.1016/j.procs.2014.05.027 fatcat:4ey7j3klhrbavoow36f44lbyr4

Numerical simulation of 2D real large scale floods on GPU: the Ebro River

Isabel Echeverribar, Mario Morales-Hernández, Pilar Brufau, Pilar García-Navarro, A. Paquier, N. Rivière
2018 E3S Web of Conferences  
of 1-h of simulation time for 1-day flood event.  ...  These results lead to the feasible application of this numerical model in real-time simulation tools with accurate and fast predictions useful for flood management. *  ...  However, computational development is enhancing some methods and some alternatives have emerged recently.  ... 
doi:10.1051/e3sconf/20184006007 fatcat:5w4bovhdfrdopnsje4bz62sre4

Hydraulic correction method (HCM) to enhance the efficiency of SRTM DEM in flood modeling

Huili Chen, Qiuhua Liang, Yong Liu, Shuguang Xie
2018 Journal of Hydrology  
insufficient spatial resolution. 5 A hydraulic correction method (HCM) for the SRTM DEM is proposed in this study to improve 6 modeling accuracy.  ...  To demonstrate 18 the advantages of HCM, an extreme flood event in Huifa River Basin (China) is simulated on 19 the original DEM, Bare-Earth DEM, Multi-Error removed DEM, and hydraulically corrected 20  ...  To substantially improve its computational efficiency for large-304 scale flood simulations, the current model is implemented for parallelized computing on 305 multiple GPUs using NVIDIA's parallel computing  ... 
doi:10.1016/j.jhydrol.2018.01.056 fatcat:yqfx6jp6hvcxdaajvpzyihui7y

Using High Performance Computing For Online Flood Monitoring And Prediction

Stepan Kuchar, Martin Golasowski, Radim Vavrik, Michal Podhoranyi, Boris Sir, Jan Martinovic
2015 Zenodo  
It takes a long time to execute such process sequentially, which is not acceptable in the online scenario, so the use of a high performance computing environment is proposed for all parts of the process  ...  The main goal of this article is to describe the online flood monitoring and prediction system Floreon+ primarily developed for the Moravian-Silesian region in the Czech Republic and the basic process  ...  Therefore, the issue of flood prediction and simulation has been selected as a case for experimental development.  ... 
doi:10.5281/zenodo.1100428 fatcat:oznzrj2x4vgvnpej5gzhlcbcoe

Reconstructing Geographical Flood Probability and Analyzed Inundation Flood Mapping on Social Media Implementation

Chinnaiyan RAJESHKANNAN, Shanmuga Vadivel KOGILAVANI
2021 Studies in Informatics and Control  
One of the major issues of the planetary ecosystem is natural disaster prediction, which utilizes the flood prediction approach to a larger extent.  ...  The methodology used in this paper could seed a wide range of future flood studies that may lead to a rapid and improved flood situational awareness in a city as well as at a regional level.  ...  The existing method uses Gibbs sampling approach for flood probability prediction using flooded stream data. This takes every cycle's initial value to process since it takes a high computation time.  ... 
doi:10.24846/v30i1y202103 fatcat:2v7vlytkbbafbb2rgw7asbghea

Hydrological Modeling in Malaysia [chapter]

Jazuri Abdullah, Nur Shazwani Muhammad, Pierre Y. Julien
2015 ISFRAM 2014  
However, the 1D model is less accurate in representing the real topography of the study area, even though requires short time to simulate.  ...  The application of 3D model will give more accurate results if the groundwater movement is considered but requires more time to simulate and prepare input data.  ...  Improper methods for predicting peak discharge, time to peak, and volume of water lead to inappropriate channel design [2] .  ... 
doi:10.1007/978-981-287-365-1_9 fatcat:73fi3dbirfezjkimzazvrnilci

Predicting River Embankment Failure Caused by Toe Scour Considering 1D and 2D Hydraulic Models: A Case Study of Da-An River, Taiwan

Chih-Hsin Chang, Hongey Chen, Wen-Dar Guo, Sen-Hai Yeh, Wei-Bo Chen, Che-Hsin Liu, Shih-Chiang Lee
2020 Water  
A new assessment methodology was proposed using these two equations to predict the risk of river embankment failure during flood periods.  ...  The model was then used to simulate 2D flow field and the temporal evolution of bend scour depth under different return period flood events to examine the relationships between river discharge, water level  ...  Acknowledgments: The authors would like to thank the Water Resources Agency, Ministry of Economic Affairs, Taiwan for providing the field scour data at the Shuiwei embankment in Da-An River.  ... 
doi:10.3390/w12041026 fatcat:uixisign5nhhnpkutmjbokwo2q

Application of Synthetic Unit Hydrograph on HEC-HMS Model for Flood Forecasting

Ma Haibo, Dong Xin, Chang Wenjuan, H. Li, X. Lei, Y. Yu, S. Cai
2018 MATEC Web of Conferences  
In this paper, the Huan River Basin was selected as the study area for the flood forecasting using HEC-HMS model.  ...  The simulation accuracy of the model in the Huan River basin can be enhanced by synthesizing the Snyder unit line in the HEC-HMS model according to the net rain intensity. , 0 (2018) MATEC Web of Conferences  ...  Computational model of runoff volume The initial constant rate loss method was employed to simulate the runoff process.  ... 
doi:10.1051/matecconf/201824601076 fatcat:gp45uskszjg55hr4ziw3bpsl4e

Flood Routing in River Reaches Using a Three-Parameter Muskingum Model Coupled with an Improved Bat Algorithm

Saeed Farzin, Vijay Singh, Hojat Karami, Nazanin Farahani, Mohammad Ehteram, Ozgur Kisi, Mohammed Allawi, Nuruol Mohd, Ahmed El-Shafie
2018 Water  
Design of hydraulic structures, flood warning systems, evacuation measures, and traffic management require river flood routing. A common hydrologic method of flood routing is the Muskingum method.  ...  In addition, the more the number of intervals used in the model, the better the accuracy of flood routing prediction achieved.  ...  We also thank all reviewers and the Editor-In-Chief for their insightful comments that have improved the quality of the final manuscript.  ... 
doi:10.3390/w10091130 fatcat:najxzdqpojednn6gpyhq536jyi

Robust shallow water models

Reinhard Hinkelmann, Qiuhua Liang, Vadym Aizinger, Clint Dawson
2015 Environmental Earth Sciences  
Shallow water models have been used extensively for decades with various applications in hydroscience and engineering such as flood prediction and management, river restoration and engineering, environmental  ...  models opening up new application fields such as rainfallrunoff simulation in urban and rural catchments, real-time flood and tsunami prediction and management, as well as the spreading of impulse water  ...  The model's capabilities and enhanced computational efficiency are demonstrated by applying it to a field-scale hypothetical urban flood event.  ... 
doi:10.1007/s12665-015-4764-1 fatcat:l7u4j4dm2rb6zajct34bck2n2e

Deep Learning-Based Forecast and Warning of Floods in Klang River, Malaysia

Amrul Faruq, Hudan Pandu Arsa, Shamsul Faisal Mohd Hussein, Che Munira Che Razali, Aminaton Marto, Shahrum Shah Abdullah
2020 Ingénierie des Systèmes d'Information  
The river water level contains of two features dimension and one timeseries observed data, in this study, prediction responses for river water level data using a trained recurrent neural network and update  ...  They are less commonly applied to the hydrological engineering area especially for river water level time-series data for flood warning and forecasting systems.  ...  ACKNOWLEDGEMENT The authors would like to acknowledge the Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, for supporting and facilitating this work. As well as  ... 
doi:10.18280/isi.250311 fatcat:dnu6toegjzbhze53u7bnm77qbm

Enhancing the Predicting Accuracy of the Water Stage Using a Physical-Based Model and an Artificial Neural Network-Genetic Algorithm in a River System

Wen-Cheng Liu, Chuan-En Chung
2014 Water  
Because of the existing difficulties and challenges in the prediction of water stages using the flood routing hydrodynamic model, a relatively novel computational approach, artificial neural networks (  ...  The model provides a sound physical basis for simulating water stages along the river.  ...  The authors would like to express their appreciation to the 10th River Management Bureau, Water Resources Agency, for providing access to the observational data.  ... 
doi:10.3390/w6061642 fatcat:n4n5sxuu2jbero7afvx5qn6ywy

Emphasizing Grid Feature as Flood Zonal Identification to Support Flood Relief Mechanism

Muhammad Shaheed S, Zuhairi A
2018 International Journal of Engineering & Technology  
Satellite information, raster and digital elevation model [DEM] are used to produce a flood prediction map model to simulate inundation of the study area.  ...  This is a study to highlight the utilization of square grids network with flood forecast map modelling for regional identification of inundated zones focusing on Pekan sub-district.  ...  Observation of flood continues at 4.5m and 5.5m gauge reading which resulted for Pekan sub-district to be nearly uninhabitable according to the simulation prediction.  ... 
doi:10.14419/ijet.v7i2.29.14280 fatcat:t2osfdnw6ngzhn62q6kdd3db3q

Detailed 2D flow simulations as an onset for evaluating socio-economic impacts of floods [chapter]

B Dewals, S Detrembleur, P Archambeau, S Erpicum, M Pirotton
2008 Flood Risk Management: Research and Practice  
Finally, the hydraulic model is exploited as a component of a complete flood risk modelling chain, accounting for socio-economic and ecological impacts of floods and dedicated to the assessment of flood  ...  of the model to reproduce depth measurements for a wide range of flood discharges without the need for recalibration of the roughness coefficient.  ...  The authors also gratefully acknowledge the Walloon Ministry of Facilities and Transport (MET-SETHY) for the fruitful collaboration and for the provided data sets (including topographic data).  ... 
doi:10.1201/9780203883020.ch15 fatcat:ywx4ak7b7rbhng6wl2ir3isuxm

Hydrodynamic Simulation of an Irregularly Meandering Gravel-Bed River: Comparison of MIKE 21 FM and Delft3D Flow models

Parna Parsapour-moghaddam, Colin D. Rennie, Jonathan Slaney, A. Paquier, N. Rivière
2018 E3S Web of Conferences  
This study investigates the performance of Delft3D-Flow and MIKE 21 FM to simulate the hydrodynamics of the river during the 2013 flood.  ...  This study aims at hydrodynamic modelling of Bow River, which passes through the City of Calgary, Canada. Bow River has a mobile gravel bed.  ...  In 2013, the river experienced a large flood that is the focus of this study. Natural bank erosion and sedimentation throughout Calgary was enhanced during the 2013 flood.  ... 
doi:10.1051/e3sconf/20184002004 fatcat:uml3nkzd45ebjjrr25qbbnwp5y
« Previous Showing results 1 — 15 out of 18,317 results