Glieherie Caraivan, Irina Dinu, Costina Fulga, and Daniela Popeseu
Abstract Constanta city is located on the Black Sea coast in the eastern part of the Romanian South Dobrogea region. Global warming in the Dobrogea region promotes drought conditions that decrease groundwater levels and increase abstraction rates in the shallow unconfined aquifers (loess deposits and karstified Sarmatian limestones) being used for public supply. This study advocates using an alternative confined and high quality groundwater source in the zone adjacent to the tectonic blocks 5 and 10, where the Senonian aquitard ensures delays to climate change and provides protection from potential anthropogenic contaminants. Our review of the hydrogeologic and technical conditions further suggest that abstraction wells need to be developed within the Constanta city limits and Upper Jurassic-Lower Cretaceous aquifer (400-1,200 m thick). Suggested optimal exploitation characteristics are proposed.
Keywords Climate change • Global warming • Aquifer • Coastal area • Tectonic block • Abstraction well
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