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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Analýza časových řad průtoků ve vybrané oblasti
 HOCH, Tomáš
This diploma thesis deals with the methods used for flow measurement and their subsequent evaluation. The literature research describes basic hydrological concepts related to watersheds and runoff. The next chapter describes the methods used to measure and determine the flow of water flow rates. In the last part of the literature research, methods for evaluating time series are presented which are used to determine characteristics trends and oother statistics related to watershed and flow. This is fallowed by a practical part in which the investigated watersheds are described. Data on flows and precipitation are processed for each basin which are evaluated in the next section using selected methods. The results of these analyzes are subsequently described, compared with other researches and the possible causes of the changes that occurred are explained.
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The development of water quality in the headwaters of Berounka River catchments area
 Wild, Aleš ; Janský, Bohumír (advisor) ; Benešová, Libuše (referee)
The paper describes the development of water quality based on selected pollution indicators in the source catchments of the Berounka River (Mže catchment, Radbuza catchment, Úhlava catchment and Úslava catchment of selected sub-catchments) on profiles located above the water quality monitoring profile Bukovec on the Berounka River from 1981 to 2019. Furthermore, the flow dependence during the monitored period and from it the predominant type of pollution in the given catchment is determined on the basis of the course of regression curves and the value of the coefficient of determination R2 . Based on the average annual concentrations, the evolution of the given pollution indicators on selected profiles is described for the longest possible monitoring period for which water quality data are available. Their evolution within a calendar year can be determined when the flow rate is exceeded. By means of mass transport, the actual amount of pollutants can be determined on the basis of the concentration and the flow rate. The specific mass transport then express the intensity of removal from an area of 1 km2 for a given time interval, which has been chosen here as well as the pollutant loads for one year. The observed results are then converted into graphical output. Based on the data, it is possible to...
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