The Watercourse Management of the Elbe and the Spatial Analysis Data Internet Application, by Darina Šitinová
Based on the §185 of the new Building Act, the state-owned watercourse managing establishment of the river Elbe, Povodí Labe, was supposed to provide relevant data for the elaboration of the spatial analysis no later then 9 months after the Act entered in vigour. The article describes how we squared up with such duty, which problems there were to be solved, and how the Spatial Analysis Data Internet application came into being and what it can be used for.
Risk Analysis of Flood Areas in the Urban Planning Process: Application in the Territory of the City of Brno, by Aleš Dráb & Jaromír Říha
In reaction to the catastrophic floods in central Europe in the last ten years, the 2007/60/EC Directive of the European Parliament and the Council, dated 23 October 2007, was adopted, dealing with the assessment and management of flood risks. The contents of the Directive indicates a massive application of modern methods of risk analysis in flood areas throughout the EU, including thus the Czech Republic. Worth saying, the risk assessment procedures in flood control have been developed and applied in the Czech Republic ever since the catastrophic 1997 floods. Fortunately, the Czech Republic enters the next period ready in terms of available tools of the risk analysis and experienced in practical verification in various pilot locations. Currently there are efforts to include the results of the flood risk analysis into the newly updated urban plans. This paper presents the example of the risk analysis of the General Water Management Study of the city of Brno, prospectively a basic document of water management for the process of Brno’s urban planning.
Determination of Dam Break Flood Hazard Areas, by Jan Jandora & Jaromír Říha
The construction and operation of dams entails the risk of the malfunction of their bodies. Through such malfunction, dam break flood of three possible kinds may originate: due to the failure of the dam, the malfunction of the gates of appurtenant works, or as consequence of emergency solutions to peril situations of the scheme. According to the Czech 254/2001 Water Act, a dam break flood hazard area is a territory which can be inundated in case of dam failure. If the supposed area of the dam break flood hazard is significantly larger than that of the natural flood, the extent of such territory is determined in a crisis plan, correspondingly to the 240/2000 Crisis Act. For the determination of the size of the endangered area and the expected spatio-temporal course of the dam break flood, procedures similar to those for the determination of flood areas according to the relevant 236/2002 governmental regulation are used. The article describes the manner in which dam break flood parameters are assessed and the methods through which the expected impact in the affected area is evaluated.
Flood Control in the Morava River Basin: the Example of the City of Olomouc, by Jana Zimová
Based upon the example of Olomouc, the article comments on the flood control measures in the basin of the river Morava. The conceptual preparation of the measures in Olomouc is presented first, along with the results of a flood protection study for the territory of the Olomouc Region. Following is a description of the opening phase of the currently proceeding materialization of such measures and the preparatives for the oncoming stages, highlighting the benefit of the fruitful cooperation between the municipal and regional administrations and the watercourse management.
Deep Artesian Waters in the Hollow Basin of Brno: an Alternative Water Source, by Milan Čáslavský
On a worldwide scale, the situation in water provision is continually deteriorating because of the dramatic increase in population density and the impact of negative civilization phenomena. The problem of water supply is getting beyond its professional dimensions, becoming a political one. Unforeseen failures in water supply, resulting from natural disasters or terrorist attacks, may involve the Czech Republic, just like any other country. In this view, sufficient alternative resources of water are necessary. In the surroundings of the city of Brno, one potential water source is the structure of deep artesian waters, offering a reliable opportunity to survive under critical situations. Nevertheless, such structure needs adequate protection in order to be utilizable and exploitable by the oncoming generations.