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Hydrological drought in the context of climatic change in the world and in the Czech part of Elbe River basin
Šachová, Barbora ; Kocum, Jan (advisor) ; Janský, Bohumír (referee)
Hydrological drought in the context of climatic changes in the world and in the Czech part of Elbe River basin Abstract The submitted thesis deals with the hydrological drought as one of extreme runoff situations in relation to climate change. Part of this work is a comprehensive research sources to Czech and foreign literature defining the concepts and the development of hydrological drought due to the physical- geographic and anthropogenic factors. Low flow characteristics and methods for defining the drought events are described. Attention is paid to the possibilities of prevention and compensation of negative impacts of drought. Within the second part the presence of low flow in Elbe River subbasins, Blšanka River, Rakovnický Brook and Vydra River, is analyzed. Water deficit is evaluated with regard to the physical-geographic characteristics and the specifics of water resources use. Outline of possibilities to increase the retention capacity of study catchments is given. Key words: hydrological drought, low flow, runoff regime, retention potential, Blšanka River, Rakovnický Brook, Vydra River
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Trends in the development of runoff and surface water quality in the Blšanka River basin
Šmidtová, Jana ; Kliment, Zdeněk (advisor) ; Matoušková, Milada (referee)
The aim of this Bachelor's thesis is to analyze trends in the development of runoff and selected features of surface water quality in the drainage basin of the Blšanka river. The thesis consists of a research part and a practical part. The research part examines scholarly literature and describes changes in the runoff and water quality depending on climate change as well as changes in the land use. The practical part processes the data from the Blšanka drainage basin from the end of the 1970s until today. The trends evaluated by the Mann-Kendall's test include the development of the average monthly flow rates, the average monthly temperatures from weather station in Žatec and the monthly amount of precipitation from the four stations situated in or near the area of the drainage basin. The practical part outlines the development of selected indicators of water quality in Trnovany. Next, it also evaluates changes in the land use in a specific part of the Blšanka drainage basin between the years 1995, 2004 and 2013. Keywords: changes in runoff, climate change, water quality, land cover, Mann-Kendall, Blšanka TRENDS IN THE DEVELOPMENT OF RUNOFF AND SURFACE WATER QUALITY IN THE BLŠANKA RIVER BASIN
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Hydrological drought in the context of climatic change in the world and in the Czech part of Elbe River basin
Šachová, Barbora ; Kocum, Jan (advisor) ; Janský, Bohumír (referee)
Hydrological drought in the context of climatic changes in the world and in the Czech part of Elbe River basin Abstract The submitted thesis deals with the hydrological drought as one of extreme runoff situations in relation to climate change. Part of this work is a comprehensive research sources to Czech and foreign literature defining the concepts and the development of hydrological drought due to the physical- geographic and anthropogenic factors. Low flow characteristics and methods for defining the drought events are described. Attention is paid to the possibilities of prevention and compensation of negative impacts of drought. Within the second part the presence of low flow in Elbe River subbasins, Blšanka River, Rakovnický Brook and Vydra River, is analyzed. Water deficit is evaluated with regard to the physical-geographic characteristics and the specifics of water resources use. Outline of possibilities to increase the retention capacity of study catchments is given. Key words: hydrological drought, low flow, runoff regime, retention potential, Blšanka River, Rakovnický Brook, Vydra River
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