UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS

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2024-11-22 1:43
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Conference: Bucharest University Faculty of Physics 2013 Meeting


Section: Atmosphere and Earth Science; Environment Protection


Title:
Climate change and its impact on hydrological extremes


Authors:
Mary-Jeanne Adler, Ciprian Corbus, Rodica Mic, Silvia Chelcea


Affiliation:
National Institute of Hydrology and Water Management, Bucharest, Romania


E-mail
mj.adler@hidro.ro


Keywords:
Climate change impact, hydrological extremes, uncertainty in Hydrology


Abstract:
The impacts of climate change will increase and develop into a significant threat in the large basins if the reduction of greenhouse gas emissions is not complemented by climate adaptation measures. Changes in the frequency and intensity of extreme climate/weather events (such as heavy precipitation and resultant flooding, droughts, high temperatures, storms) because of anthropogenically induced climate change is analysed in long series of hydrological data. Important differences are recorded on regional scale because almost all of them show a pronounced regional/local character. The effects on environment and society in terms of changes to hydrological extremes (e.g. floods and droughts) are unknown. The damages recorded in Europe and particularly in Romania during the last decades, justify the importance of information related to extreme events occurrence; streamflow integrates the effects of the local imbalance between precipitation and evapotranspiration and storage changes over the drainage area considered, and forms, therefore the perfect signal to explore possible climate change effects on the terrestrial hydrological cycle. Among the extreme weather/climate events, those related to the heavy precipitation and prolonged droughts are the most dangerous ones, considering their effects on various socio-economic domains and specific prevention and mitigation measures necessary for each of them, dependent on their features and their affected spatial and temporal scale. CLIMHYDEX Project address to changes in the characteristics of variability for the meteorological and hydrological extremes on the past and future projections over the 21st century and was analysed the national scale for climate and hydrological extremes. The quantification of the uncertainty associated to these future changes will be also presented.