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Bathymetric Survey Processing and Volumetric Analysis of the Brno Reservoir
Dzoba, Kryštof ; Hamal, Rostislav (referee) ; Marton, Daniel (advisor)
This bachelor thesis is devoted to the processing of bathymetric data and volumetric analysis of the Brno reservoir and the creation of digital terrain models. Based on these models, bathygraphic curves are created. Subsequently, a simulation of the reservoir operation is carried out to determine the effect of the change of the bathymetric curves on the reservoir capacity. The first part of the thesis is devoted to introduction to bathymetry, the possible ways of collecting bathymetric data and describing the measurements made in the practical part of the thesis. The next part is devoted to the description of the methods used for data processing, the creation of digital terrain models and the creation of bathymetric curves. In the last part the interpretation of the results is made.
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Volumetric and Evaporation Analysis of the Landštejn reservoir
Hánová, Karolína ; Bednář, Martin (referee) ; Marton, Daniel (advisor)
This bachelor thesis focuses on the volumetric analysis and estimation of evaporation from the water surface of Landštejn reservoir. The main objective is to determine new bathymetric curves of the reservoir based on the most recent bathymetric survey of the bottom and then to estimate the amount of evaporated water for a selected period. To achieve these objectives, ArcGIS tools will be used to create a digital terrain model that will allow accurate calculation of the bathymetric curves through volumetric analysis. The amount of evaporation will be determined using selected empirical formulas and simple balance analysis, taking into account the standard ČSN 75 2405 concerning the water management design of reservoirs and comparison with data from the Czech Hydrometeorological Institute. The practical part of the work includes the creation and evaluation of a digital terrain model of the Landštejn reservoir and subsequent estimation of evaporation based on average temperatures and other meteorological data. The results show new bathygraphic curves and provide accurate estimates of the volume of water evaporated from the reservoir over the specified period. This work contributes to a better understanding of the hydrological processes in the Landstejn reservoir area and provides important input for more effective water management planning and management.
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Description of Relation between Flow and Suspended Sediment Load in a Hydromertic Profiles of a Selected Rivers
Bobková, Dominika ; Janál,, Petr (referee) ; Marton, Daniel (advisor)
The issue of the relationship between water discharge and the suspended sediment loads is a globally highly addressed topic. Knowing the suspended sediment loads in the streams avoids problems with over-filling of water cannons and thus prevents insufficient capacity of water reservoirs. This thesis is partly a follow-up to the bachelor thesis, which extends and introduces new procedures. Neural networks, more specifically multilayer perceptron neural networks, are used to analyse the relationship between water discharge and suspended sediment loads. The results of the networks are then processed in Excel into graphs and evaluated using the coefficient of determination, Nash-Sutcliffe coefficient and RMSE coefficient. The practical application is solved on two profiles - the profile Podhradí nad Dyjí and the profile Židlochovice. Each profile is examined in a different period.
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Creating a simulation model of multi-reservoir system in the HEC-ResSim
Keilová, Nikola ; Marton, Daniel (referee) ; Menšík, Pavel (advisor)
Bachelor´s thesis is focused on the description of the programming of the device HEC-ResSim and the subsequent creation of the simulation model water system the Vír I and Brno. To create a simulation model using real data on the reservoirs. A simulation model is compiled for the management of the storage function and the calculation is carried out with a daily step. To simulate the flow of water to the system reservoir is used the real flow series. Part of the work is a translation of a clear manual to the program HEC-ResSim
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Numerical Model of Water Flow in the Upper Reservoir Nové Mlýny
Winkler, Stanislav ; Zachoval, Zbyněk (referee) ; Marton, Daniel (advisor)
Diploma thesis is focused on understanding problematic of sedimentation in reservoirs with relation on flood episodes. For creating numerical model was necessary to ensure data about morphology of the river, granular composition of the riverbed and hydrology data. In thesis is written how were obtained these documentations, description of creating numerical model in program HEC – RAS 5.0.7. and results of done simulations of real flood episodes, which took place in years 2004, 2005, 2006, 2009, 2013. Output is evaluation each flood episode, description of grain class curves and evaluation of yearly flow before change of riverbed due to transport of sediments and after change of morphology of riverbed.
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Historical development of sediment deposition in upper reservoir of Nové Mlýny dam
Komorová, Magdaléna ; Marton, Daniel (referee) ; Zachoval, Zbyněk (advisor)
Master thesis is about historical deposition of sediments in the upper reservoir of Nové Mlýny from first fill up with water until present time. Beginning of the thesis concentrates on introduction of types of sediments and their behavior in rivers and reservoirs, sediment deposition in reservoirs and measures against sedimentation in reservoir. Part of the thesis consist of the creation of numerical one-dimensional model with transport of sediments on sections of rivers Dyje, Jevišovka and in the upper reservoir. Output data evaluation consist of analysis of sediment’s volume, development of bed in time and variation of bed evaluation in reservoir. Master thesis evaluates the development of water surface with different stages of sedimentation.
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Determination of the functional volumes of the reservoir considering input data uncertainties
Paseka, Stanislav ; Doležal, Petr (referee) ; Szolgay,, Ján (referee) ; Marton, Daniel (advisor)
Damaging changes and interventions in the water cycle in our landscape caused mainly in the last century together with uncertainties from climate change are the cause of more frequent occurrences of hydrological extremes. In Hydrology, the most urgent problem is that the values of the long-term mean flows are decreasing in rivers as well as the yield of groundwater sources, but on the other hand, we cannot forget to the problem of extreme floods. In these consequences developing methods and tools to uncertainty analysis of the reservoir yield and of the reservoir flood protection is very important, useful and desired. The main aim was to determine the functional volumes of the reservoir considering input data measurement uncertainties and to quantify them and was explained how uncertainty took into account in results. The active storage capacity was determined from the historical series of monthly flows that were affected by uncertainties, next were applied on water evaporation, seepage losses of the dam and morphological volume-area curves. The simulation-optimization reservoir model was developed and temporal reliability as reservoir yield performance measures was applied. This model will extend the existing UNCE_RESERVOIR software. The flood capacity was determined from random flood wave variations were obtained by repeatedly generating uncertainty on the flood hydrograph. Software was developed based on the modified Klemes method, which was able to transform flood waves. The measurement uncertainties of data inputs were created using Monte Carlo method in both softwares. By connecting two softwares, the functional volumes of the reservoir under conditions of measurement uncertainties were complexly determined. The case study was applied to the real water reservoir, in the Morava River Basin. The result will be whether the dam is resistant to the current conditions, or the optimal design of the functional volumes of reservoir under conditions uncertainties.
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Analysis of selected effects on water management solution storage function of reservoir system
Čechová, Martina ; Daniel,, Marton (referee) ; Menšík, Pavel (advisor)
The bachelor thesis deals with the influence of the effect of water loss by evaporation in the water management solution storage function of reservoir system. To determine the size of the effect of water loss by evaporation is used simulation model. The simulation model is created with SOMVS. Determining the size of water losses from reservoirs is made simplified method. Loss of water by evaporation is solved for selected level hydrologic reliability of evaporation. To find the optimal size of the storage volume of the proposed reservoir are used all optimization methods included in the SOMVS, that is the grid method, Monte Carlo method, the modified gradient method and differential evolution.
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