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Flow pattern and hydraulic response propagation in selected caves of Moravian Karst
Kůrková, Iva ; Bruthans, Jiří (advisor) ; Knížek, Martin (referee)
This thesis is divided into two parts. The first one is focused on tracer tests carried out in several karst conduits in the Moravian Karst. Several conduits were tracer repeatedly during different discharges. Flow velocity, flow cross section area, longitudinal dispersivity and Peclet number were plotted against discharge for each studied conduit. Based on this comparison of parameters I deduced characteristics of karst conduits for example presence of phreatic channel or vadose channel or multiple channels. I also focused on comparison of my results with publications dealing with the same subject elsewhere in the world. Second part of the thesis is based on measurements of water stage, dischargeand temperature by pressure transducers at inlet and outlet points of karst conduit logged in 10 minutes interval. The goal was to find a relation between the velocity of hydraulic response propagation and discharge. Unfortunately, results show no correlation because there are probably more parameters influencing the velocity such as ratio of vadose/phreatic segments which may change rapidly during flood events.
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Flow and mean residence time in karst unsaturated zone (Ochoz Cave, Moravian Karst)
Vysoká, Helena ; Bruthans, Jiří (advisor) ; Buzek, František (referee) ; Tesař, Miroslav (referee)
Flow and mean residence time in epikarst and unsaturated zone was studied above the Ochoz cave in the Moravian Karst. I studied various flow components with different residence time in unsaturated zone and the influence of soil and epikarst on seepage composition and residence time by means of several methods (longterm monitoring of conductivity, flowrate of seepage and soil water, use of environmental tracers - 18 O, 3 H, CFC and SF6, flow into the soil and detailed sampling during intesive rain events). Seepage sites Kašna in the Rudické propadání cave system and Mapa Republiky in Býčí skála were reference localities in unsaturated zone. For comparison I modeled residence time in saturated zone: at Kaprálka outlet close to the Ochoz cave, at Stará řeka (Rudické propadání) and Konstantní přítok (Amatérská cave). Mean residence time in unsaturated zone above the Ochoz cave reaches 7 - 20 years, while it is only few months in the soil (1 - 8 months, depending on the depth). At Kašna seepage site, the reasidence time is similar to the Ochoz cave - about 18 - 20 years, at Mapa republiky seepage site, it reaches 150s year due to unusual geological settings. Mean residence time in order of 10 - 20 years corresponds to storativity values (0.6 % in average) calculated from parallel water level recession...
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Study of vadose zone in northern part of Moravian Karst
Gregorová, Anita ; Bruthans, Jiří (advisor) ; Kamas, Jiří (referee)
This study is focused on the flow through the uppermost part of the unsaturated zone in karstified areas. The information about distribution of transit times and chemical reactions taking place in the unsaturated zone is based on isotopic and chemical composition of cave dripwaters, precipitations and water caught by gravitation lysimeters. The water balance was calculated using measurements of intensity of dripwaters and amounts of water caught by lysimeters and rain gauges. The velocity of a hydraulic shockwave between monitored objects was also estimated according to the delay between significant precipitation event and dripwater intensity increase. The field study took place in the Němcova 1 cave in the northern part of Moravian Karst, near the village Suchdol. It was carried out during the hydrological year 2010/2011. The cave is about 13 m under the surface. The information about composition of overlaying rock above the cave was obtained using geoelectrical and electromagnetic measurements. Studied geological environment is built of 0.5 - 1.5 m of soil, 0.5 - 3.5 m of epikarst and a layer of massive limestone as thick as 10 m. About 70 to 90 % of dripwaters have residence time over 4 years. The distribution of transit time of younger water can be described using the exponencial model (well...
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The Mapping Survey of the locality Ostrov u Machochy
Červinková, Eva ; Vondrák, Jiří (referee) ; Kuruc, Michal (advisor)
The aim of this work is topographic and altitudinal focus and make out maps Balcarka around the cave in the Moravian Karst focusing on karst formations and the entrances to the caves. Measurement is connected to a mandatory reference systems S-JTSK and Bpv. The resulting map area of interest is made at a scale of 1: 500 3rd accuracy class according to CSN 01 3410 and a list of coordinates of specific points of CHKO will be handed management Moravian Karst.
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The Mapping Survey of the locality Babice nad Svitavou
Lukeš, Michal ; Foral, Jakub (referee) ; Kuruc, Michal (advisor)
This bachelor´s thesis is focused on creating tacheometric plan in Moravian karst. Specifically, the geodetic survey terrain relief by tacheometry with emphasis on survey karst phenomena in locality. This thesis describes build and survey point area, planimetric and altimetric measurement and creating map in coordinate system S-JTSK and height system Bpv.
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Monitoring of Rock Blocks Movements
Nezvalová, Kristýna ; Kalvoda, Petr (referee) ; Hanzl, Vlastimil (advisor)
The thesis deals with monitoring of rock blocks movements near sinking stream Bílá voda situated near the village Holštejn in Moravian Karst. The thesis follows up results, which were gained in years 2004-2011. The aim of thesis is survey of the 16th stage in summer 2012 and 17th stage in autumn 2012, following processing of surveying data and evaluation of space movements. Achieved results are compared mutually and they are analysed towards results of previous periods. The final results are documented numerically and graphicallyl.
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The Mapping Survey of the locality Babice nad Svitavou
Kubín, Petr ; Viktorová, Stanislava (referee) ; Kuruc, Michal (advisor)
The aim of this thesis was to topographic and altitudinal plans karst phenomena tachometric method in the field at the rear Babic Svitavou and copy thematic maps at a scale of 1 : 500th The measurement output is connected to a mandatory reference systems S- JTSK and Bpv . Functional map and a list of coordinates of specific points CHKO will be handed over management of the Moravian Karst.
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The thematical map in the Moravian Karst
Medvědová, Eva ; Mottl, Tomáš (referee) ; Šváb, Tomáš (advisor)
The geodetic survey and creation of the thematic map of the locations in the Ostrov u Macochy and Vilémovice in the Moravian karts with demarcation on working entrances to caves and rocks formations in lacation these entrances. The geodetic survey has been done by Czech national standards and guidelines ČÚGK deals with the creation thematic maps.
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