snow core sampling

Snow core sampling involves extracting a cylindrical section of snow from a glacier or snowpack using special tools, similar to how one might take a core sample of soil. Scientists analyze these snow cores to study historical climate data, such as past snowfall, temperature variations, and air pollution deposits. Each layer within the core represents a different period, providing a timeline of environmental conditions. This technique helps researchers understand climate change impacts and snowpack evolution over time, informing environmental and ecological studies.