ABSTRACT. – Effects of climate change on daily water temperatures in the Hungarian Lower Danube river - The historical records prove that daily water temperature has been rise during the last decades. The rise is closely correlated with increasing air temperature in summer season. The climate scenarios in Hungary predict further warming of climate, so water temperatures are expected to increase in future. In the paper a simple method is shown for prediction of expected change in duration of daily water temperature above given temperature, especially above the temperature being critical from the exploitation of atomic power station in the Hungarian lower Danube River.
Key-words: Hungarian lower Danube, daily water temperature, duration curves of daily water temperature, mean summer air temperature, regional climate scenarios, climate-analogy