scholarly journals A Raster-based model for flood inundation mapping on delta lowland

2018 ◽  
Vol 229 ◽  
pp. 03012 ◽  
Author(s):  
Nurhamidah Nurhamidah ◽  
Bujang Rusman ◽  
Bambang Istijono
Keyword(s):  
Rapid Development ◽  
Drainage System ◽  
Heavy Rain ◽  
Geographical Information ◽  
Urban Drainage ◽  
Flood Inundation ◽  
Future Planning ◽  
Long Duration ◽  
Flood Inundation Mapping ◽  
Prone Area

A high intensity of rainfall experiences flooding in some areas. Flooding can be caused by several aspects, such as inadequate urban drainage, reduce the porous surface due to rapid development and the topography of the area itself. Flood has always been a scourge for the inhabitants of Padang city. Especially when there are a heavy-rain and long duration, certainly flood will hit some places in Padang city. Therefore, many things that must be considered by the local government in overcoming the problem of this flood, including improvements of the drainage system, reforestation and create the polders. In this research, it is described the area of the prone area in Padang city with spatial analysis tools which are approached in the Geographical Information System. Based on the topography of the Padang city, inundated areas and flood direction will be presented in case of the heavy rain occurs. From the analysis, there are several points of vulnerable inundation in Padang city that are generally located in densely populated areas and main roads in Padang city which can be considered for the future planning.

Analysis and Countermeasures of Jinan Traffic Congestion Caused by Heavy Rain

2014 ◽  
Vol 1010-1012 ◽  
pp. 297-300
Author(s):  
Zhi Yuan Yin ◽  
Wang Lin Li ◽  
Xu Huang ◽  
Na Li
Keyword(s):  
Traffic Congestion ◽  
Road Traffic ◽  
Rapid Development ◽  
Drainage System ◽  
Heavy Rain ◽  
Practical Significance ◽  
Urban Drainage ◽  
Urban Road ◽  
Impervious Area ◽  
Heavy Rains

Jinan is a historic city and famous for its springs. With the rapid development of urbanization, traffic congestion phenomenon occurred, especially in heavy rain weather. Based on the natural geographical conditions, hydrological and meteorological conditions, the urban road and urban drainage system of Jinan, analyzed the reasons as follow: unfavorable natural conditions, heavy rains space-time change sharply, urban impervious area expands unceasingly and urban drainage management system fall behind, etc. On the basis of successful experience domestic and foreign, aimed at the influencing factors that caused traffic congestion in heavy rains of Jinan, put forward the following measures and suggestions to solve the problem: (1)Enhance the ability of urban road against rainstorm floods. Increase the width of the road, and increase the construction of the drainage ditch system. (2)Improve the drainage standard of the city. Dredging river to improve the drainage ability and improve the drainage facilities construction. (3)Construction of rainwater utilization facilities. Such as reservoirs and pumping stations. It has important practical significance to ease road traffic congestion phenomenon in heavy rains weather of Jinan.

scholarly journals Development of a Simulation Model for Real-Time Urban Floods Warning: A Case Study at Sukhumvit Area, Bangkok, Thailand

Water ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1458
Author(s):  
Detchphol Chitwatkulsiri ◽  
Hitoshi Miyamoto ◽  
Sutat Weesakul
Keyword(s):  
Real Time ◽  
Water Resource Management ◽  
Drainage System ◽  
Flood Management ◽  
Rainfall Data ◽  
Urban Drainage ◽  
Flood Inundation ◽  
The Real ◽  
Inundation Area ◽  
Flood Inundation Mapping

Increasingly frequent, high-intensity rain events associated with climatic change are driving urban drainage systems to function beyond their design discharge capacity. It has become an urgent issue to mitigate the water resource management challenge. To address this problem, a real-time procedure for predicting the inundation risk in an urban drainage system was developed. The real-time procedure consists of three components: (i) the acquisition and forecast of rainfall data; (ii) rainfall-runoff modeling; and (iii) flood inundation mapping. This real-time procedure was applied to a drainage system in the Sukhumvit area of Bangkok, Thailand, to evaluate its prediction efficacy. The results showed precisely that the present real-time procedure had high predictability in terms of both the water level and flood inundation area mapping. It could also determine hazardous areas with a certain amount of lead time in the drainage system of the Sukhumvit area within an hour of rainfall data. These results show the real-time procedure could provide accurate flood risk warning, resulting in more time to implement flood management measures such as pumping and water gate operations, or evacuation.

Flood Inundation Mapping of the Hitachi Region in the Kuji River Basin, Japan, During the October 11–13, 2019 Extreme Rain Event

2020 ◽  
Vol 15 (6) ◽  
pp. 712-725 ◽  
Author(s):  
Shakti P. C. ◽  
◽  
Kohin Hirano ◽  
Satoshi Iizuka
Keyword(s):  
River Basin ◽  
Hydrological Modeling ◽  
Rapid Development ◽  
Mitigation Strategies ◽  
Flood Mapping ◽  
Rain Event ◽  
Flood Inundation ◽  
Advantages And Disadvantages ◽  
Inundation Mapping ◽  
Flood Inundation Mapping

The frequency of severe flood events has been increasing recently in Japan. One of the latest events occurred in October 2019 and caused extensive damage in several river basins, especially in the central and northern regions of the country. In this study, we selected the Hitachi region (Hitachi-Omiya and Hitachi-Ota) within the Kuji River Basin which underwent considerable flooding due to the failure of embankments at two locations in the region. Maximum-possible flood inundation maps were generated using survey-based data and hydrological modeling for the Hitachi region. These maps incorporated the flood scenarios (embankment failures). All the generated products were compared with the reference flood mapping, i.e., Sentinel-1 data and Geospatial Information Authority of Japan (GSI) data for that region. It was observed that generated flood inundation mapping product based on the survey-data yielded results similar to those obtained with GSI data for the Hitachi region. Although each flood mapping product has advantages and disadvantages, they can be a good reference for the proper management and mitigation of flood disaster in the future. The rapid development of flood inundation mapping products that consider varying flood scenarios is an important part of flood mitigation strategies.

scholarly journals THE FEASIBILITY STUDY OF ENVIRONMENTALLY FRIENDLY URBAN DRAINAGE SYSTEM MANUFACTURE AND ITS RELEVANCE TO ECOLOGICAL INTELLIGENCE IN FLOOD PRONE AREA IN MANGKUBUMI DISTRICT OF TASIKMALAYA

2018 ◽  
Vol 18 (1) ◽  
pp. 1
Author(s):  
Evi Hanafi
Keyword(s):  
Descriptive Analysis ◽  
Research Result ◽  
Drainage System ◽  
Urban Drainage ◽  
Type Ii ◽  
Project Learning ◽  
Prone Area ◽  
Flood Prone Area ◽  
Intelligence Development ◽  
Technical Terms

The aims of this research are to (1) analyze the type of infiltration well that can be applied in Mangkubumi District of Tasikmalaya, and (2) analyze the relevance of infiltrationwell manufacture with the ecological intelligence development. This research is a descriptive quantitative analytics with the research location of Mangkubumi District. The method of collecting data is secondary gained through literature review. Data analysis has been done through descriptive analysis of physical condition. The research result shows that Mangkubumi District generally fulfills the technical terms of infiltration well manufacture based on SNI 03-2453-2002. The type of infiltration well that can be applied in Mangkubumi District is type II, the infiltration well with adobe and red brick without cement plaster with a hole between them and type A retention pool. The infiltration well manufacture can be applied at school project learning method of geography subject therefore the ecological intelligence of students can grow and develop because they experience it directly.

Comprehensive Planning of Urban Drainage and Wastewater Treatment

1993 ◽  
Vol 27 (12) ◽  
pp. 205-208
Author(s):  
Dirk-Th Kollatsch
Keyword(s):  
Wastewater Treatment ◽  
Transport Model ◽  
Drainage System ◽  
Simulation Models ◽  
Urban Drainage ◽  
Sewer Systems ◽  
Priority Task ◽  
Treatment Facilities ◽  
Receiving Waters ◽  
Pollution Impacts

For upgrading the urban drainage system (UDS) the reduction of pollution impacts is the priority task concerning the environmental protection of the receiving waters. With simulation models the interactions between surface, sewer systems, overflow structures and treatment facilities within the UDS can be shown. Models to simulate the pollutant impacts, transport and the effects on the receiving waters are available. In a first step a pollutant transport model of sewer systems and a model to simulate the wastewater treatment processes are connected. With these models the efficiency of upgrading measures can be checked in all parts of urban drainage systems.

A novel approach to the real-time modelling of large urban drainage systems

1997 ◽  
Vol 36 (8-9) ◽  
pp. 19-24 ◽  
Author(s):  
Richard Norreys ◽  
Ian Cluckie
Keyword(s):  
Real Time ◽  
Dynamic Models ◽  
Drainage System ◽  
Radar Data ◽  
Urban Drainage ◽  
Real Time Control ◽  
Empirical Modelling ◽  
Time Control ◽  
Novel Approach ◽  
Non Linear Systems

Conventional UDS models are mechanistic which though appropriate for design purposes are less well suited to real-time control because they are slow running, difficult to calibrate, difficult to re-calibrate in real time and have trouble handling noisy data. At Salford University a novel hybrid of dynamic and empirical modelling has been developed, to combine the speed of the empirical model with the ability to simulate complex and non-linear systems of the mechanistic/dynamic models. This paper details the ‘knowledge acquisition module’ software and how it has been applied to construct a model of a large urban drainage system. The paper goes on to detail how the model has been linked with real-time radar data inputs from the MARS c-band radar.

Integrated modelling: comparison of state variables, processes and parameters in sewer and wastewater treatment plant models

1997 ◽  
Vol 36 (5) ◽  
pp. 373-380 ◽  
Author(s):  
C. Fronteau ◽  
W. Bauwens ◽  
P.A. Vanrolleghem
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Drainage System ◽  
Integrated Modelling ◽  
Urban Drainage ◽  
State Variables ◽  
Sewer System ◽  
Wastewater Treatment Process ◽  
Urban Drainage System

All the parts of an urban drainage system, i.e. the sewer system, the wastewater treatment plant (WWTP) and the river, should be integrated into one single model to assess the performance of the overall system and for the development of design and control strategies assisting in its sustainable and cost effective management. Existing models for the individual components of the system have to be merged in order to develop the integrated tool. One of the problems arising from this methodology is the incompatibility of state variables, processes and parameters used in the different modelling approaches. Optimisation of an urban drainage system, and of the wastewater treatment process in particular, requires a good knowledge of the wastewater composition. As important transformations take place between the emission from the household and the arrival at the treatment facility, sewer models should include these transformations in the sewer system. At present, however, research is still needed in order to increase our knowledge of these in-sewer processes. A comparison of the state variables, processes and parameters has been carried out in both sewer models (SMs) and activated sludge models (ASMs). An ASM approach is used for the description of reactions in sewer models. However, a difference is found in the expression for organic material (expressed in terms of BOD) and heterotrophic biomass is absent as a state variable, resulting in differences in processes and parameters. Reconciliation of both the models seems worthwhile and a preliminary solution is suggested in this paper.

scholarly journals Modelling Pluvial Flooding in Urban Areas Coupling the Models Iber and SWMM

Water ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2647
Author(s):  
Esteban Sañudo ◽  
Luis Cea ◽  
Jerónimo Puertas
Keyword(s):  
Urban Areas ◽  
Flow Model ◽  
Overland Flow ◽  
Drainage System ◽  
Urban Drainage ◽  
Dynamic Link Library ◽  
Storm Water Management Model ◽  
Urban Street ◽  
Sewer Network ◽  
Overland Flow Model

Dual urban drainage models allow users to simulate pluvial urban flooding by analysing the interaction between the sewer network (minor drainage system) and the overland flow (major drainage system). This work presents a free distribution dual drainage model linking the models Iber and Storm Water Management Model (SWMM), which are a 2D overland flow model and a 1D sewer network model, respectively. The linking methodology consists in a step by step calling process from Iber to a Dynamic-link Library (DLL) that contains the functions in which the SWMM code is split. The work involves the validation of the model in a simplified urban street, in a full-scale urban drainage physical model and in a real urban settlement. The three study cases have been carefully chosen to show and validate the main capabilities of the model. Therefore, the model is developed as a tool that considers the main hydrological and hydraulic processes during a rainfall event in an urban basin, allowing the user to plan, evaluate and design new or existing urban drainage systems in a realistic way.

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