Observed extreme precipitation-temperature scaling in Russia during 1961-2017

The relationship between the daily precipitation intensity and daily temperature conditions were studied for the 1961- 2017 period using meteorological stations data and ERA-Interim reanalysis. Most of the datasets show a statistically significant relationship between the intensity of extreme precipitation and temperature. In winter and autumn, the extreme precipitation intensity tends to be higher at warmer daily mean temperatures. For the warmer seasons (spring and summer) the most typical type of scaling is non-monotonous, where the increase of extreme precipitation stops at very high temperatures. For example, typical temperature threshold values for summer are 15-20°C. A strong precipitation decrease was observed only in the summer period at the southern part of European Russia.