Abstract
Methods of snowmelt accumulation as a means of ensuring water security in the Republic of Kazakhstan are considered. The relevance of the topic is justified in the context of limited water resources, transboundary dependence of river flows and climate change. Analytical, predictive and engineering-hydraulic approaches, eco-hydraulic planning and monitoring methods were used. An analysis of threats to water security was carried out, including climate change, anthropogenic impacts and transboundary hydrological risks. The scientific results include the systematization of methods of snowmelt accumulation, the justification of reservoirs, transport infrastructure and engineering equipment to increase the efficiency of water supply and reduce erosion. The practical significance lies in the provision of an integrated approach to sustainable water resource management, increasing water security and adapting to climate change.