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Thresholds and the spatial variability of flood power during extreme floods

Thresholds and the spatial variability of flood power during extreme floods
Catastrophe ; Channel geometry ; Flood ; Floodplain ; Fluvial hydrology ; Illinois ; United States ; Wisconsin
This paper analyzes the variation in flood power both at-a-station and downstream in a basin of differing lithologies, and discusses the geologic and geomorphic controls on flood power. Floodplain width influences these local and general controls
, and will directly and indirectly control flood power within the drainage network through its control on the rates of change of several hydraulic variables during discharge increases.

Retence vody v povodí

Flood ; Flood control ; River basin ; Water retention
The paper discusses a broad range of flood control measures designed mainly to increase water retention capacity. It focuses on the main trends in flood control, i.e. on passive flood control and functions of dikes and retention basins. - (EN)

Flooding features in Bangkok and vicinity: geographical approach : International Symposium on flood disaster reduction in South-East Asia

Flooding features in Bangkok and vicinity: geographical approach : International Symposium on flood disaster reduction in South-East Asia
Drainage ; Flood control ; Human impact ; Hydraulic works ; Inundation ; Land use ; Monsoon ; Natural hazards ; Precipitation ; Thailand
Nowadays, floods are no longer controlled by nature. There are human factors such as urbanization, land use, and irrigation systems etc. These factors caused more complex flooding in the Chao Phraya plain. Bangkok and vicinity, S of Chao Phraya
delta has flooding every year, because some areas are below the mean sea level. The A. presents the factors of flooding and proposals of flood protection.

Strategy or disaster. Flood prevention related issues and actions in the Tisza River basin

Strategy or disaster. Flood prevention related issues and actions in the Tisza River basin
Flood ; Flood control ; Fluvial deposit ; Hungary
Changes in land use of the lowland landscape along the Tisza River have largely been shaped by processes that took place after flood control and regulation measures of that river. As a result fluvial accumulation has either been eliminated
to problems that have to be solved, such as the stability of levee slopes. To prevent slope slumps it would be reasonable to start studies on flood control embankments in order to reveal sections endangered by an extreme water pressure during floods. - (AM)
or restricted to the flood plain. At present human settlements extend to some segments of the low flood plain threatened by flood hazard. The amended Vásárhelyi Scheme focuses on raising embankments and extension of flood plain. Floods called the attention

Construction of watershed flood disaster management information system and its application to the catastrophic flood of the Yangtze River in 1998

Construction of watershed flood disaster management information system and its application to the catastrophic flood of the Yangtze River in 1998
Catastrophe ; China ; Flood ; Forecast ; Geographical information system ; Hydraulic works ; Jiangxi ; Lake ; Watershed
Watershed flood disaster management concerns monitoring and forecasting flood, assessing the flood damage and flood control and disaster reduction decision making in the scope of the whole watershed. Remote sensing and Geographical Information
System are powerful tools to construct Watershed Flood Disaster Management Information System (WFDMIS). In this paper, the design and implementation of WFDMIS are discussed. An application example in Poyang Lake Basin is given.

Simulation analysis for evaluation of flood control measures on urbanization process

Simulation analysis for evaluation of flood control measures on urbanization process
Regional Dynamic Model with the backward integration on system Dynamics Modeling is proposed in order to evaluate the effect of the flood control to the land enhancement. - (SGA)

Operational control modeling for land use development of flood estimated areas in small scale basins

Operational control modeling for land use development of flood estimated areas in small scale basins
Analyse de système ; Bassin-versant ; Crue ; Géographie physique ; Inondation ; Modèle ; Région urbaine ; Système de contrôle
This study discusses a few points about the comprehensive flood control system. Then it evaluates the feasable area in several watersheds by using dynamic quantitative models. Two modelings are proposed : the system Dynamics Modeling for an adaptive
type and the Optimal Control Modeling for an optimal type. - (SGA)

A case study on the residents response to the flood hazards and flood control measures in the inundated areas of Sapporo City

A case study on the residents response to the flood hazards and flood control measures in the inundated areas of Sapporo City
The structural modeling method is proposed in order to construct the consciousness structure of flood hazard problem and the living environment. A method using the AIC and a structural method of awareness movement are proposed. It is imperative

Hydrosynoptic approaches for identification of flood mechanism

Hydrosynoptic approaches for identification of flood mechanism
Catastrophe ; Czech Republic ; Elbe ; Flood ; Flood control ; Water circulation ; Watershed
Problems related to application of hydrosynoptic approaches for flood protection in Czech Republic. Presented examples are based on data from sub-basins of the Czech Elbe River. The physical-geographic variability of Elbe-basins is a reason
for their varying sensibility to different types of circulation pattern, that are able to generate the flood. - (MS)

The pattern of flood hazard in the Karoo environment of South Africa

The pattern of flood hazard in the Karoo environment of South Africa
The flood problem of the semi-arid lands of the Cape Province is examined and two particularly susceptible regions are identified for flood control and relief strategies. - (AJC)

Long-term impacts of the 1997 floods in the Morava River Basin

Long-term impacts of the 1997 floods in the Morava River Basin
Czech Republic ; Flood ; Impact study ; Natural hazards
with the formulation of the settlement pattern during industrialization and urbanization. The main geographical methods of flood protection include the relocation of outside inundated areas, technical controle and the adaptation to flood risks too. - (MS)
In 1997, disastrous floods have been carried out of the Morava River and other Moravian rivers. The long-term impacts of the flood event on the landscape and population have been examined. The main causes of the flood damage are connected

Geomorphological features of Northwestern Bangladesh and some problems on flood mitigation : International Symposium on flood disaster reduction in South-East Asia

Geomorphological features of Northwestern Bangladesh and some problems on flood mitigation : International Symposium on flood disaster reduction in South-East Asia
The northwest region of Bangladesh is divided into 4 geomorphological units which show different flood features. The region has suffered severe flood damage both in 1987 and in 1988. After these floods Bangladesh Action Plan for Flood Control

A Korosok arvizeinek néhany hidrologiai sajatossagai és az 1980. évi arviz. (Hydrology of floods on the Koros rivers with a special regard to events of the flood in 1980)

A Korosok arvizeinek néhany hidrologiai sajatossagai és az 1980. évi arviz. (Hydrology of floods on the Koros rivers with a special regard to events of the flood in 1980)
The author gives an overview of floods and flood control measures on the Koros rivers, East-Hungary. The study is concerned with the laws of occurrence, monthly and annual distribution of floods, the sudden fluctuations in water regime, the mean
and peak discharges of rivers and the duration of floods on various stretches.

Spatial and temporal variation of muddy floods in central Belgium, off-site impacts and potential control measures

Spatial and temporal variation of muddy floods in central Belgium, off-site impacts and potential control measures
Belgium ; Cultivated land ; Erosion control ; Flanders ; Flood ; Loess ; Mudflow ; Slope gradient ; Watershed
of areas producing muddy floods have been identified. The most suitable control measures are then reviewed.
The aim of this paper is to refine previous conceptual models of muddy flood triggering by determining rainfall and topographic thresholds for the Belgian loess belt as well as to quantify off-site impacts of muddy floods. Twenty municipalities
in central Belgium have been selected for a detailed analysis. A database of 367 locations affected by muddy floods has been compiled, and the connectivity between cultivated areas and inhabited zones could be assessed for 100 flooded locations. Three types

The Cork City flood of November 2009 : lessons for flood risk management and climate change adaptation at the urban scale

The Cork City flood of November 2009 : lessons for flood risk management and climate change adaptation at the urban scale
Adaptation ; Climatic change ; Cork ; Flood ; Flood control ; Hydraulic works ; Ireland ; Northern Ireland ; Risk management ; Urban area ; Vulnerability
Drawing on the example of Cork City and the November 2009 flood in particular, this paper evaluates contemporary policy and decision-making responses to flood hazards to determine whether they are sufficient to address current and future flood risks
and vulnerabilities. This framing of flood hazards is shaped by several influences including the historic evolution of flood policy and current institutional structures. The November 2009 flood highlights the limits of current policy and practice.

Flood control failures in a Third World city : Benin City, Nigeria - Some environmental factors and policy issues

Flood control failures in a Third World city : Benin City, Nigeria - Some environmental factors and policy issues
Applied hydrology ; Catastrophe ; Developing countries ; Environment ; Flood ; Flood control ; Land use ; Natural hazards ; Nigeria ; Urban environment ; Urban policy
The aim of this study is to examine some of the environmental factors and policy issues responsible for flood control failures in Benin city, a typical Third World city. First, it highlights some of the obvious errors of omission and/or commission
as well as identifies those critical environmental factors and the direction for policy reorientation in the mitigation of the flooding problems. Second, it provides a new framework that includes conservation principles in flood control packages for Third

Geoekologické aspekty zmírňování povodňových škod

Czech Republic ; Damage ; Environmental conservation ; Flood ; Flood control ; Geo-ecology ; Watershed
into sectors with different protective values move of technical measures from revers close to valuables objects and areas represent the vision of flood control downstream the rivers. - (MS)
After the disastrous floods in 1997, 1998 and 2002 in Czech Republic the highest damages were registered in cities and towns. The flood damages require additional measures both on rivers and in catchment area. The flood plain segmentation

Fakta a mýty o povodních

Czech Republic ; Exceptional event ; Flood ; Flood control ; Myth
The article analyzes the causes, course and effect of the extreme flood in August 2002 in the Czech Republic. The analysis is stemming from meteorological and hydrological point of view and is framed by the broader context of historical experience
flooding and current flood protection and prevention system in the Czech Republic. - (EN)

Changing Late Holocene flooding frequencies on the Columbia River, Washington

Changing Late Holocene flooding frequencies on the Columbia River, Washington
controlling this variation in flood frequency.
Flood frequencies comparable to those of the twentieth century existed prior to 1020 A.D. and after 1390 A.D. Large floods were three to four times more common during the intervening centuries. Climatic conditions are the most probable factors

Flood perception and mitigation : the role of severity, agency, and experience in the purchase of flood protection, and the communication of flood information

Flood perception and mitigation : the role of severity, agency, and experience in the purchase of flood protection, and the communication of flood information
Empowerment ; Flood ; Flood control ; Information ; Management ; Risk perception ; United Kingdom
Protection of human life and property from flooding is a strategic priority in the U.K. The AA. examine how to encourage home owners to protect themselves and their residences. A model of factors that influence the decision to buy flood-protection
devices is tested using survey data from 2109 home owners. The second part examines responsiveness to information. Information about flooding alone was insufficient to promote behavioural change.

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