Increasing Water Resources Availability Under Climate Change

Beran, Adam; Hanel, Martin; Nesládková, Magdalena; Vizina, Adam

doi:10.1016/j.proeng.2016.11.087

Cited by 10 publications

(6 citation statements)

References 2 publications

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“…These climate models were evaluated as appropriate for the Czech Republic and Central Europe region. Regional climate models were selected based on the conclusions of similar studies in the Czech Republic [8,[20][21][22]. The control period was set to 1981-2010 and scenarios were created for the following periods: 2021-2040, 2041-2060, and 2081-2100.…”

Section: Climate Change Scenariosmentioning

confidence: 99%

The Impact of Climate Change on the Reliability of Water Resources

Sýs

Fošumpaur

Kašpar

2021

Climate

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Climate change impact assessment is crucial for strategic planning in many areas, including water management, agriculture and forestry. Water planning has a long tradition in the Czech Republic, who has implemented the requirements of the Water Framework Directive since 2000. Following the expected impacts of climate change on the hydrological regime, adaptation measures in the water sector are being prepared as part of strategic plans. This contribution studies the uncertainty propagation of climate scenarios in hydrological data, which are then used to assess the reliability of water resources and to design appropriate adaptation measures. The results are being discussed for a case study in the deficit area of Rakovnický stream and Blšanska river basins, which are among the driest areas in the Czech Republic. Research of the impact of climate change on the reliability of water resources has been prepared using ensembles of selected regional climate models. This approach has allowed a probabilistic assessment of the impact on the hydrology regime and the reliability of water supply from reservoirs for various time horizons of climate change. In view of the relatively large variance of potential impacts on water resources, options for further strategic planning in the water management area are being discussed.

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Section: Climate Change Scenariosmentioning

confidence: 99%

The Impact of Climate Change on the Reliability of Water Resources

Sýs

Fošumpaur

Kašpar

2021

Climate

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“…The modern way of life has greatly impacted the quality and quantity of water resources mainly through the phenomena of urbanization, excessive consumption, continued population increase, imbalanced water use, the accelerating development of industry, the tertiary sector, especially tourism, and the intensification of agriculture and grazing [1,2]. During the past few decades, the amount of readily available water has progressively declined [3][4][5]. As a result, a constantly increasing competition for water resources has emerged.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Hydrometeorological Trends and Drought Severity in Water-Demanding Mediterranean Islands under Climate Change Conditions

Stathi

Kastridis

Myronidis

2023

Climate

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Global climate change has emerged as a problem in recent years, and its effects will likely continue to increase in the future. Several scientific studies conducted in the Mediterranean region have demonstrated relatively stationary trends for annual precipitation and significant upward trends for mean annual temperature. These trends present several implications, especially in the Greek islands that serve as major summer tourist destinations where the population is already unable to meet their water demands. The aim of this study is to investigate both long- and short-term variations in temperature and precipitation on three Greek islands in the Mediterranean Sea (Mykonos, Naxos, and Kos). The temperature and rainfall trends, as well as their magnitudes at yearly, seasonal, and monthly time steps, were determined using the non-parametric Mann–Kendall trend test. The Standardized Precipitation Index (SPI) was employed to identify the drought periods. According to the results, precipitation slightly increased (almost stationary) in the three islands, although this rise was not statistically significant. All three islands experienced a sharp and statistically significant increase in their mean annual air temperatures. The region may experience drought episodes as a result of the high temperature increase, which would drastically reduce the amount of water, available for use due to the increased evapotranspiration. For the Mediterranean region, the necessity for a drought management strategy to stop or diminish the severity of drought episodes and their effects has grown into a matter of great concern. It is crucial to take measures and conduct relevant research in order to create the conditions for adaptation and mitigation of climate change consequences and the increased appearance of drought phenomena.

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“…Water management, changes in natural water regime and sustainable landscape became an important topic of social discussions and policies not only in the Czech Republic, but also around the world [1]. It is clear that global and local climatic conditions are changing and will have an impact on the water management sector and therefore they should be given the highest attention.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Evaporation from Water Reservoirs in Local Conditions at Czech Republic

et al. 2021

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Evaporation is an important factor in the overall hydrological balance. It is usually derived as the difference between runoff, precipitation and the change in water storage in a catchment. The magnitude of actual evaporation is determined by the quantity of available water and heavily influenced by climatic and meteorological factors. Currently, there are statistical methods such as linear regression, random forest regression or machine learning methods to calculate evaporation. However, in order to derive these relationships, it is necessary to have observations of evaporation from evaporation stations. In the present study, the statistical methods of linear regression and random forest regression were used to calculate evaporation, with part of the models being designed manually and the other part using stepwise regression. Observed data from 24 evaporation stations and ERA5-Land climate reanalysis data were used to create the regression models. The proposed regression formulas were tested on 33 water reservoirs. The results show that manual regression is a more appropriate method for calculating evaporation than stepwise regression, with the caveat that it is more time consuming. The difference between linear and random forest regression is the variance of the data; random forest regression is better able to fit the observed data. On the other hand, the interpretation of the result for linear regression is simpler. The study introduced that the use of reanalyzed data, ERA5-Land products using the random forest regression method is suitable for the calculation of evaporation from water reservoirs in the conditions of the Czech Republic.

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Increasing Water Resources Availability Under Climate Change

Cited by 10 publications

References 2 publications

The Impact of Climate Change on the Reliability of Water Resources

The Impact of Climate Change on the Reliability of Water Resources

Analysis of Hydrometeorological Trends and Drought Severity in Water-Demanding Mediterranean Islands under Climate Change Conditions

Evaluation of Evaporation from Water Reservoirs in Local Conditions at Czech Republic

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