TY JOUR TI Precipitation Dynamics and Dangerous Phenomena in the Eastern Caucasus KW Climate change KW precipitation KW Eastern Caucasus KW Republic of Dagestan KW Chechen Republic KW nonparametric methods of mathematical statistics KW natural hazards of a hydrometeorological nature JO Russian Journal of Earth Sciences AU Korchagina, E.A. PY 2025 IS 25 PB Geophysical Center of the Russian Academy of Sciences