VTEI / water temperature

water temperature

Simulation of the thermal regime of a drinking water reservoir under projected climate change conditions

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The potential impact on the thermal regime was assessed using Vrchlice Reservoir as a case study. The model was calibrated for 2023 using detailed measurements of vertical water temperature profiles at selected monitoring sites provided by the Elbe River Water Authority; subsequent verification was carried out for 2022. To compare the affected thermal regime with the current state, 2018 was selected as the reference year. The observed daily air temperature series for 2018 was transformed using the Advanced Delta Change (ADC) method to reflect changes derived from climate models for the 2050 and 2085 horizons. The scenario calculations presented in this article isolate the effect of changes in air temperature, while other meteorological and hydrological-operational inputs are kept at their 2018 reference levels.

Juvenile fish assemblages – appropriate tool for monitoring of the ecological status

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Aquatic organisms have a very good ability to reflect the conditions of the environment they live in and, therefore, they are often used to assess the ecological status of that particular environment. of juvenile fish assemblages (0+) represent an appropriate tool for monitoring the ecological status of watercourses as they show a very rapid response to changes in environmental conditions. The goal of this study was to assess assemblages of juvenile fish (0+) at 22 sites across the Czech Republic between 2019 and 2021.