National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Trends of hydroclimatic factors in selected catchments of the Ore Mts.
Navrátilová, Denisa ; Matoušková, Milada (advisor) ; Fraindová, Kateřina (referee)
The bachelor work deals with identification of the trends in data series of the chosen hydroclimatic factors (temperatures, rainfall and runoff) of the upper Svatava River basin and of the Načetín Brook which both drained the Ore Mountains. The main aim of the thesis is identification of the trends of both study catchments and their comparative analysis. The study uses mean daily discharges data from the gauging stations Klingenthal and Rothenthal and also from the German climatic stations situated near study catchments. The introductory part describes physical-geographic characteristics of study catchments. The main attention is paid to the analysis of temperatures, rainfall and runoff, e.g. by the method of linear regression, simple sum curves and by Mann-Kendall statistic test. More detailed analysis of the runoff was done using IHA software. Results of analysis show a significant annual trend of temperatures increasing and runoff decreasing during the examined period. The most significant changes in temperatures and runoff is recorded in the spring and summer seasons. Key words: outfall, rainfall, temperatures, the change of the rainfall-outfall régime, Mann- Kendall test, IHA analysis
Changes of rainfall-runoff regime in the Athabasca River basin
Fraindová, Kateřina ; Matoušková, Milada (advisor) ; Kliment, Zdeněk (referee)
Athabasca River Basin is located in an area which is affected by many factors. During the last century, the global warming manifests here, resulting primarily into increasing temperatures and glaciers melting in the headwaters area. Much of the middle reaches watershed is used for agriculture, for irrigation of which water from the Athabasca River is pumped. In recent years, controversial development of bituminous sands mining is carried out in the basin. Although it represents a real energy source, the mining requires large amounts of water, which is largely drawn from the Athabasca River. The work therefore analyzes the runoff change in the upper, middle and lower reaches during the last forty years. Along with the time series air temperature changes and precipitation totals, which can also explain runoff changes, are analyzed. Powered by TCPDF (www.tcpdf.org)
Oil Sands Mining in Alberta: Economic and Environmental Connections
Fraindová, Kateřina ; Jeleček, Leoš (advisor) ; Vrtiška, Tomáš Josef (referee)
Bituminous sands currently represent a real energy source that could temporarily replace already consumed part conventional sources of crude oil, which decrease. Acquisition of such strategic minerals is much more difficult both economically and technologically and represents a considerable negative impact on the environment. This paper first introduces general characteristics and problems of the crude oil extraction. Briefly describes different types of mining technologies that are used or are under development. Then focuses on an overall assessment of production in terms of economic and environmental aspects. The work focuses on the assessment of positive and negative impacts both on the economy of Canada and the environment, especially in the area of mining in Alberta. Key words: oil sands, economy of mining, environmental impacts, Canada, Alberta

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