Ecological Systems and Devices Annotation << Back LONG-TERM DYNAMICS OF PRECIPITATION DURING THE COLD PERIOD ON SAKHALIN ISLAND AS A FACTOR OF CHANGES IN AVALANCHE ACTIVITY D.A. Bobrova According to data from 18 weather stations on Sakhalin Island, precipitation trends in the precipitation of the cold period (NovemberMarch) were identified using linear regression and their assessment at the 5 % significance level. A comparison of precipitation rates for November-March over the last 30-year period at the time of 2025 and precipitation rates given in the climate reference book for the period from 1891–1980 was carried out. Over the past 46 years, there has been a signifi cant increase in precipitation at a number of weather stations, while one weather station shows a signifi cant decrease in precipitation in almost all winter months throughout the entire observation period. An increase in the frequency and volume of avalanches is predicted on the southwestern coast in the Nevelsk-Chekhov area and in the Alexandrovsk-Sakhalinsky district and a decrease in the frequency of avalanches in the Ilyinsky area and north of it up to Uglegorsk. Keywords: Sakhalin Island, snow avalanches, solid precipitation, precipitation trends. DOI: 10.25791/esip.6.2025.1530 Pp. 54-62.