Snowpack refers to the accumulation of snow that builds up on the ground over time, particularly in mountainous regions. It is an important component of the hydrological cycle, as it acts as a natural reservoir that stores water during the winter months. When temperatures rise in spring, the snowpack melts, releasing water that feeds rivers and lakes, which is crucial for ecosystems and human water supply. The thickness and density of snowpack can vary based on factors like temperature, precipitation, and wind. Monitoring snowpack levels is essential for predicting water availability, managing water resources, and assessing avalanche risks in areas popular for winter sports.