National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Evaluation of a Water Reservoir Bed Morphology Using Bathymetric Data
Jílek, David ; Menšík, Pavel (referee) ; Marton, Daniel (advisor)
Sedimentation of reservoirs is one of the current problems in the field of water resource management. The actual conditions of the bed morphology can be scan by modern bathymetric sensors or measuring and then transferred to digital terrain models. This bachelor thesis evaluates the process of the sedimentation of the upper reservoir of Nové Mlýny reservoir since its first filling in 1978 to the newest measuring in 2018 using an assessment of a water volume changes in the reservoir. The thesis also describes a detailed manual of reservoir volumes evaluation in the programs ArcGIS and Atlas DMT, and verification of the method accuracy. These programs were used for creating the digital terrain models and calculating area-volume curves that were utilized for evaluation of a volume change and then for the amount of the reservoir sedimentation. The total volume of the reservoir loss during the forty years is estimated as 500 thousand m3 which equals 28 % of the total reservoir volume, at least the 300 thousand m3 of sedimentation was realised in the last ten years. The outcomes are part results of the project ATCZ28 SEDECO – Sediments, ecosystem services and interrelation with the floods and droughts in the AT-CZ border region.
Evaluation of a Water Reservoir Bed Morphology Using Bathymetric Data
Jílek, David ; Menšík, Pavel (referee) ; Marton, Daniel (advisor)
Sedimentation of reservoirs is one of the current problems in the field of water resource management. The actual conditions of the bed morphology can be scan by modern bathymetric sensors or measuring and then transferred to digital terrain models. This bachelor thesis evaluates the process of the sedimentation of the upper reservoir of Nové Mlýny reservoir since its first filling in 1978 to the newest measuring in 2018 using an assessment of a water volume changes in the reservoir. The thesis also describes a detailed manual of reservoir volumes evaluation in the programs ArcGIS and Atlas DMT, and verification of the method accuracy. These programs were used for creating the digital terrain models and calculating area-volume curves that were utilized for evaluation of a volume change and then for the amount of the reservoir sedimentation. The total volume of the reservoir loss during the forty years is estimated as 500 thousand m3 which equals 28 % of the total reservoir volume, at least the 300 thousand m3 of sedimentation was realised in the last ten years. The outcomes are part results of the project ATCZ28 SEDECO – Sediments, ecosystem services and interrelation with the floods and droughts in the AT-CZ border region.

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