A glacial lake is a body of water formed by the melting of glacial ice, often dammed by moraines, ice, or bedrock. These lakes are important indicators of past glacial activity, climate change, and the dynamics of glacial meltwater. Studying glacial lakes helps in understanding the processes of deglaciation, sedimentation, and landscape evolution.
Reference: Benn, D. I., & Evans, D. J. A. (2010). Glaciers and Glaciation. Routledge.