scholarly journals Simulation and Application Research on the River System Connectivity, Considering the Flood Control and Agricultural Water Objectives

2021 ◽  
Vol 768 (1) ◽  
pp. 012036
Author(s):  
Jin Liu ◽  
Xu Guan ◽  
Xia Liu
Keyword(s):  
Flood Control ◽  
River System ◽  
Application Research ◽  
Agricultural Water

scholarly journals Assessment of Siltation Processes of the Koronowski Reservoir in the Northern Polish Lowland Based on Bathymetry and Empirical Formulas

Water ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1681 ◽  
Author(s):  
Dawid Szatten ◽  
Michał Habel ◽  
Luisa Pellegrini ◽  
Michael Maerker
Keyword(s):  
Flood Control ◽  
Field Measurements ◽  
Suspended Sediments ◽  
River System ◽  
Empirical Formulas ◽  
Filtration Method ◽  
Transport Dynamics ◽  
Sediment Budgets ◽  
The Impact ◽  
Artificial Reservoirs

Artificial reservoirs have an important role in water management of river systems in terms of flood control, water supply and sediment budgeting. Therefore, it is important to maximize the time of their effective functioning. Sediment budgeting mainly depends on sediment transport dynamics. This article illustrates the impact of the Koronowski Reservoir on suspended sediments transported by the Brda River. The river system and the reservoir represent a typical lowland river environment. Our research is based on hydrological and sedimentological investigations on the reservoir and the river system. Field measurements were used to create the respective hydrological and sediment budgets. Moreover, we carried out bathymetric measurements to generate present day bathymetry and to calculate the reservoir’s capacity. We assessed the silting of the reservoir following the approaches proposed by Goncarov and Stonawski. We show that the size and dynamics of suspended sediments are mainly determined by the hydrological conditions. Moreover, we illustrate that the suspended sediment measurements made with the filtration method correlate with the nephelometric results. Generally, we show that the Koronowski Reservoir is mainly filled up by suspended sediments. We further illustrate that the level of siltation estimated with the empirical formulas deviates significantly from calculations made by bathymetric measurements.

scholarly journals Centering the Korle Lagoon: exploring blue political ecologies of E-Waste in Ghana

2019 ◽  
Vol 26 (1) ◽  
pp. 448
Author(s):  
Peter C Little ◽  
Grace Abena Akese
Keyword(s):  
Political Ecology ◽  
Ecological Restoration ◽  
Social Life ◽  
Flood Control ◽  
Risk Mitigation ◽  
Dominant Role ◽  
River System ◽  
Toxic Waste ◽  
Restoration Project ◽  
Political Ecologies

<p>Among emerging studies of the global political economy and ecology of electronic waste (or e-waste), few directly explore the already complex waste trades and materialities in relation to the general political ecology of water, flood control, dredging, and neoliberal ecological restoration. Even fewer focus on how this political-ecological challenge is unfolding in a West African context where ocean-based e-waste trades have played a dominant role. This article engages this particular domain of blue economic critique by focusing on Ghana in general and what we shall call "blue political ecologies of e-waste" in particular. The article focuses on e-waste politics unfolding in and around the Korle Lagoon in Accra, Ghana. The Korle Lagoon is an urban marine space of intensive land use, toxic waste disposal, social life, and urban ecological restoration. Amidst heavy contamination, there are attempts to rehabilitate the lagoon through the Korle Lagoon Ecological Restoration Project, an ecological science and restoration project focused on the Lagoon and its river system in the metropolitan area of Accra. It showcases the neoliberal complexities of ecological restoration. Importantly, situated in a multi-use marine environment, the project also highlights, we argue, a political ecological moment that is both about things 'blue', like water quality concerns, but also about other things non-blue such as contestation over land and housing, 'green' international NGO intervention on e-waste risk mitigation, and desires for new urban ecologies. Drawing on ethnographic research conducted between 2015 and 2018, this article contributes to blue political-ecological research and critique in Africa by asking: how do e-waste politics leak into discussions of the blue economy along the Korle Lagoon in Ghana? What are the promises and prospects of a blue political ecology of e-waste in general, and in Africa in particular?</p><strong>Key Words</strong>: Political ecology, Ghana, e-waste, lagoon contamination, ecological restoration

Study of Urban Flood Control Planning in Taiyuan

2013 ◽  
Vol 838-841 ◽  
pp. 1709-1714
Author(s):  
Xiu Yong Yi ◽  
Yang Zhang
Keyword(s):  
Soil Conservation ◽  
Flood Control ◽  
River System ◽  
Control Measures ◽  
River Channels ◽  
Mountainous Areas ◽  
Urban Flood ◽  
Existing Problems ◽  
Downstream Area ◽  
Soil Conservation Measures

Considering topography, climate, river system, and existing problems in Taiyuan, the urban flood control planning in Taiyuan boils down to the following points: determine the flood control standard according to the size of city; study the flood alleviating measures in the upstream area; provide adequate water and soil conservation measures in the mountainous areas reduce flash floods; divert flood from mountainous areas to the downstream area instead of to the urban; improve the river channels in the urban area; provide flood detention and retarding area in the downstream area; study non-engineering flood control measures.

Tunnel and reservoir plan solution to Chicago's combined sewer overflow, basement flooding, and pollution

1988 ◽  
Vol 15 (3) ◽  
pp. 389-396
Author(s):  
W. A. Bergman ◽  
D. H. Kapadia
Keyword(s):  
Mississippi River ◽  
Flood Control ◽  
Lake Michigan ◽  
Sewage Treatment ◽  
River System ◽  
Canal System ◽  
Stream Pollution ◽  
Continental Divide ◽  
Regional Basis ◽  
Sanitary District

In 1890, the Metropolitan Sanitary District of Greater Chicago was formed to permanently protect the region's drinking water supply from devastating contamination by sewage. The solution was to excavate a massive canal across the continental divide and to thus reverse the flow of the Chicago River, causing it to flow into the tributaries of the Mississippi River and away from Lake Michigan. Later, sewage treatment works were constructed to treat dry weather flows.Each time rainfall exceeds 8.4 mm, the combined sewers' capacities are exceeded, and they discharge directly to the canal system on the average of 100 times per year without benefit of treatment. When the sewers and canal system are overtaxed, raw sewage backs up the sewers in Chicago and 51 suburbs, flooding streets, businesses, and home basements.In order to solve these problems on a regional basis, the Sanitary District in 1972 adopted the tunnel and reservoir plan (TARP). TARP is a second river system which is being constructed by boring tunnels up to 11 m in diameter in rock as much as 100 m under the city. When the surface sewers' capacities are exceeded, the excess flows will drop into TARP. Huge reservoirs totalling 157 000 000 m3 capacity will store the sewage until it can be gradually pumped back to the treatment works. Key words: sewage, combined sewers, overflows, water pollution, water quality, stream pollution, flood control, tunneling.

Discussion of Application and Calculation about Surface Precipitation in Midstream of Yellow River

2013 ◽  
Vol 438-439 ◽  
pp. 1265-1271
Author(s):  
Ming Yi Xu
Keyword(s):  
Flood Control ◽  
Yellow River ◽  
Complex Problem ◽  
Application Research ◽  
Rainfall Characteristics ◽  
Surface Precipitation ◽  
Characteristic Index ◽  
Surface Rainfall ◽  
Sediment Formation ◽  
Fixed Area

Surface precipitation calculation and application is a complex problem. It involves not only how to calculate, and more importantly, a broad range of issues of calculation and results which are both closely integrated with application. It mainly includes the reliability, representativeness and consistency of surface precipitation; the calculation of surface rainfall depth and rainfall amount in general different durations, rainfall area and its corresponding total amount in different durations, specified range and different degrees; the calculation of characteristic index of surface rainfall location, area, rain depth, total amount, and the corresponding shape, mobile, development within rain district or fixed area to analysis surface rainfall characteristics and changes. Taken sediment formation and variation of the midstream of the Yellow River as research objectives, this paper presents the flood control design and flood resource application research with larger flood to satisfy the requirement of engineering hydrological calculations, and briefly describes the surface precipitation calculation and research results.

scholarly journals Approach to Mitigation of Territory Inundation with Help of Flood Control by Small Water Reservoirs

10.29007/hjpt ◽  
2018 ◽  
Author(s):  
Vitaly Ilinich ◽  
Aleksey Perminov ◽  
Olga Rukhovich ◽  
Anna Naumova
Keyword(s):  
River Basin ◽  
Flood Control ◽  
Water Reservoir ◽  
River System ◽  
Flood Mitigation ◽  
Water Reservoirs ◽  
Hydraulic Flow ◽  
Small Water ◽  
Flow Capacity ◽  
Flood Hydrograph

The research dedicated to modeling of flood mitigation on the river basin with help of simulation of flood control by virtual small water reservoirs located in different places of the river system. Such problem decided with help of modeling of flood hydrograph and its routing through water reservoir on the base GIS. Reducing the degree of flooding should occur due to the limited hydraulic flow capacity of the water flow by dam spillways without flood control by people. The offered model is represented on the example of concrete river basin. Results have showed relevance of the model for flood mitigation on the river basin.

scholarly journals Socio-hydrology: conceptualising human-flood interactions

2013 ◽  
Vol 10 (4) ◽  
pp. 4515-4536 ◽  
Author(s):  
G. Di Baldassarre ◽  
A. Viglione ◽  
G. Carr ◽  
L. Kuil ◽  
J. L. Salinas ◽  
...  
Keyword(s):  
Flood Control ◽  
Technological Development ◽  
River System ◽  
High Water ◽  
Social Processes ◽  
Individual Characteristics ◽  
Water Levels ◽  
Control Structures ◽  
Flooding Events

Abstract. Over history, humankind has tended to settle near streams because of the role of rivers as transportation corridors and the fertility of riparian areas. However, human settlements in floodplains have been threatened by the risk of flooding. Possible responses have been to resettle away and/or modify the river system by building flood control structures. This has led to a complex web of interactions and feedback mechanisms between hydrological and social processes in settled floodplains. This paper is an attempt to conceptualise these interplays for hypothetical human-flood systems. We develop a simple, dynamic model to represent the interactions and feedback loops between hydrological and social processes. The model is then used to explore the dynamics of the human-flood system and the effect of changing individual characteristics, including external forcing such as technological development. The results show that the conceptual model is able to reproduce reciprocal effects between floods and people as well as the emergence of typical patterns. For instance, when levees are built or raised to protect floodplain areas, their presence not only reduces the frequency of flooding, but also exacerbates high water levels. Then, because of this exacerbation, higher flood protection levels are required by the society. As a result, more and more flooding events are avoided, but rare and catastrophic events take place.

scholarly journals Flood of Ecology - Floodplain Habitation

2021 ◽  
Author(s):  
◽  
Christopher Braczek
Keyword(s):  
Flood Control ◽  
River System ◽  
Flood Protection ◽  
Natural Occurrence ◽  
Floodplain Management ◽  
Flood Hazards ◽  
Flood Events ◽  
Coastal Forests ◽  
Urban Context ◽  
Human Modification

<p>Larger and more devastating flood events are happening more frequently across the planet, but flooding is a natural occurrence for any river system. It is only due to human modification of the river system, through the removal of natural features and attempts at flood control, that creates flood hazards that cause damage to communities and ecosystems.  Kapiti Coast’s terrain consisted, pre 19th century, of a mixture of dense coastal forests and extensive wetlands. The landscape has and always will be prone to flooding. With the addition of the expressway to the region, making it easier to travel to and from the capital Wellington, it is expected that the population of Kapiti will grow. But biodiversity may get lost, and flooding may become increasingly more frequent. How might new settlers learn to live with flooding and the constant risk that every time it rains it may cause damage to their homes or businesses? Can there be other benefits to floodplain management, such as biodiversity and recreation?  The aim of this research is to investigate and develop strategies to aid in the settlement of floodplains so that biodiversity is improved, allowing people to live with floods and without the fear that flooding may cause damage. Specifically, the design-led research seeks to generate solutions that improve both flood awareness and flood protection along the Waikanae River. The design seeks to allow the river to express its own flow patterns, and then secondly, how settlement will work within that. It can then be a catalyst for settlement of floodplain areas along the edge of the river.  This thesis will explore how ecology, rehabilitation and natural flood protection can be employed amongst an expanding urban context to create a new way of thinking about our rivers and mitigating the ever pressing issue of flooding.</p>

scholarly journals Some hydrodynamic problems for flood forecasting and flood control in the Red river system

2007 ◽  
Vol 29 (3) ◽  
pp. 271-283
Author(s):  
Nguyen Van Diep
Keyword(s):  
Flood Control ◽  
River System ◽  
Flood Forecasting ◽  
Hydraulic Model ◽  
Red River ◽  
Model Coupling ◽  
Development Activity ◽  
Dam Break Flow ◽  
Scientific Results ◽  
2D Model

My research & development activity in the field of environmental & natural fluid mechanics has been started after one year's working visit, proposed by Prof. Nguyen Van Dao, at the Laboratoire National d'Hydraulique de France in Chatou, France (1979-1980). Until now this activity is still a most important one.In the paper it is presented some selected scientific results in one of hydrodynamic problems for flood forecasting and flood control: developing of the 1D hydraulic model, 1D & quasi 2D model, 1D hydraulic model for dam break flow , 2D hydraulic model, coupling of 1D and 2D hydraulic models and some theirs applications for flood forecasting and flood control in the Red River System.This paper is dedicated to the memory of Prof. Nguyen Van Dao, with whom I had a big chance to work and to collaborate during about 30 years, to whom I would like to express my heartfelt thanks.

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