|
|
Manifestation of flood in June 2013, Upper Lužnice River
Jaček, Matouš ; Šobr, Miroslav (advisor) ; Havlíková, Petra (referee)
This thesis is about progression of chosen fluvial lakes in the upper basin of the river Lužnice. Observed changes were mainly caused by flood in spring 2013. This area is located by national border with Austria. This part of the river is very preserve and almost without human modifications. The Lužnice river is floating throw floodplain creating meanders and also many fluvial lakes. This area is very useful for research in flooding and changes they cause. First part of this thesis is focused on work with literature about fluvial lakes, their changes and characteristic, about floods and their effect on landscape and about the river Lužnice itself. The second part is about measuring and evaluating changes on four fluvial lakes. These lakes were mapped and measured and those measuring were compared to the measuring made before flood in June 2013.
|
|
|
Interaction of groundwater and surface water under period of hydrological drought in the floodplain of the upper Lužnice River
Korejs, Tomáš ; Šobr, Miroslav (advisor) ; Janský, Bohumír (referee)
The object of this thesis si to evaluate the interaction of groundwater and surface water under the period of hydrological drought in the floodplain of the upper Lužnice river. The thesis tries to show the influence of the groudwater in the river floodplain during the period of hydrological drought and its correlation with the surface water state. The area of interst of the upper Lužnice is characterized by a unique ecosystem of unique natural value. It is a preserved river floodplain, which plays an irreplaceable role in fluvial processes, especially in water retention. The objectives were solved based on the monitoring of groudwater and surface water states from data obtained from the PřF UK profiles, which are represented by boreholes aross the floodplain and level meters in the watercourse. From the data obtained, it was possible to create a final analysis and to determine the behaviour and the mutual interaction between the surface water and groundwater in this natural floodplain. A detailed analysis has confirmed, that the interaction between watercourse and the floodplain and its retention potential. It can be said that during the hydrological drought, the water state or discharge in the watercourse is improved by water from the floodplain. The subsidy is only evident in certain stretches of...
|
|
|
Runoff extremity in the Upper Lužnice catchment area
Musil, Jan ; Janský, Bohumír (advisor) ; Kocum, Jan (referee)
Thesis subject is the evaluation of runoff and flood regime of rivers Lužnice and Skřemelice at the closing profiles just before their confluences. The results are compared with findings from the profile Pilař, which were published in the past by other authors. More attention is paid to the evaluation of the hydrological year 2013 and in detail is described the flood in June of the same year. Daily flow data from the years 1971 - 2014 were used for evaluating of runoff conditions. The assessment of the runoff regime in terms of daily, monthly and annual flows were compared with the runoff regime in Pilař gauge station. The source regions with dominating influence on the resulting runoff were discovered. Analysis of the flood regime confirmed that spring floods in Lužnice came mainly from upland and hilly parts of catchment and large summer floods have main source area in the catchment of Lužnice river itself, before the confluence of the Lužnice river and Skřemelic river. When assessing flood in 2013, the main source areas of flood flows that hit Lužnice river basin were founded. The flood extremity was compared in each closing profiles.
|
|
|
Manifestation of flood in June 2013, Upper Lužnice River
Jaček, Matouš ; Šobr, Miroslav (advisor) ; Havlíková, Petra (referee)
This thesis is about progression of chosen fluvial lakes in the upper basin of the river Lužnice. Observed changes were mainly caused by flood in spring 2013. This area is located by national border with Austria. This part of the river is very preserve and almost without human modifications. The Lužnice river is floating throw floodplain creating meanders and also many fluvial lakes. This area is very useful for research in flooding and changes they cause. First part of this thesis is focused on work with literature about fluvial lakes, their changes and characteristic, about floods and their effect on landscape and about the river Lužnice itself. The second part is about measuring and evaluating changes on four fluvial lakes. These lakes were mapped and measured and those measuring were compared to the measuring made before flood in June 2013.
|
guest ::
