Proposal of Prevention Measures Against Drought in Urban Areas

Abstract

The creation of the adaptation strategy on impacts of the climate change in urban area comes out from assumption that the adaptation is not just a single shot but a cyclic dynamic process which has to be systematic and coordinated taking into account the necessity and effectiveness. Those cities which are or will be able to integrate the adaptation into planning process will better resist to reality which is affording the new period of climate change. One of those cities is the Trnava City in Slovakia. The analysis of the present climate change in the Trnava City and its surrounding assumes growing trend of temperature increase during the year and especially the increased extremeness. The combination of temperature and precipitation trends will affect the soil moisture and changes of run-off regimes of rivers. The main goal of proposal of water retention measures on the Trnavka River flowing through the city is the improvement of the water level by retaining the water what should attract public places and to cool down the air in the residential area of the city. The research was concentrated on evaluation of possible realisation of such water retention measures from water quantity and quality point of view. The solution consisted in design of several inflatable rubber weirs, its analysis and prognosis of water level and discharge regime in the Trnavka River using mathematical modelling connected with field measurements and updated detailed geodetic survey.