KnowraAlpine lakeAlpine lakeAn alpine lake is a lake in a high mountainous region, often formed or shaped by glaciers and fed by snowmelt.BriefConnectGlacial lake: A lake occupying a basin formed or modified by glacial activity. Many alpine lakes occupy basins excavated by glaciers or dammed by glacial deposits.Snowmelt: Water released as seasonal snow melts. Spring and summer snowmelt commonly supplies a large share of alpine lake inflow.Lake sediment core: A cylindrical sample of layered sediment recovered from a lake bed. Cores preserve evidence of past climate, vegetation, fires, and pollution in alpine watersheds.Climate change in mountain regions: The effects of long-term climate warming and related changes in mountainous areas. Warming shifts snowmelt timing, lake temperatures, and glacier-fed water supplies.Cirque lake: A small mountain lake in a bowl-shaped hollow excavated by a glacier. These lakes often sit in steep-walled hollows near alpine ridgelines.Glacier melt: Water produced when glacier ice melts. Where glaciers persist, meltwater can feed lakes and carry suspended rock flour.Paleoclimatology: The study of past climates using natural records and physical evidence. Alpine lake sediments provide long records of environmental change.Lake ice: Frozen water that forms on the surface of a lake. The duration and timing of alpine lake ice affect habitat and seasonal mixing.Moraine-dammed lake: A lake held back by a ridge of sediment deposited by a glacier. Glacial debris can block alpine valleys and create lake basins.Watershed: The area of land that drains water to a shared outlet. A lake's watershed determines which slopes, streams, and snowfields supply it.Show all 24