Changes of extreme precipitation in Southern Russia

3rd International Conference Environment and Sustainable Development of Territories: Ecological Challenges of the 21st Century

生态环境科学;地球科学;经济学

Vyshkvarkova, E.V.^1 ; Voskresenskaya, E.N.^1

Institute of Natural and Technical Systems, Lenin St., 28 Sevastopol, 299011, Russia^1

关键词: Concentration indices;    Daily precipitations;    Extreme precipitation;    Long term change;    Moderate value;    Precipitation extremes;    Spatial and temporal variability;    Western region;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/107/1/012044/pdf
DOI  :  10.1088/1755-1315/107/1/012044

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Features of extreme precipitation and their long-term changes over Southern Russia were analysed in the paper using daily precipitation data from 21 hydrometeorological stations in 1950 - 2010. Two climate indices for extreme precipitation (RX1day and RX5day) and concentration index data series for the study period were calculated and analysed. It was defined that precipitation extreme changes are characterized by spatial and temporal variability. It was found the tendency to wetter in extreme anomalies, however, the trends are mainly negligible. Spatial distribution of precipitation concentrations demonstrates that the northern, southern and western regions are characterized by moderate values, while the coast of the Caspian Sea and the territory of Caspian Depression has shown high values of CI.