| Term: | Ice core |
| Definition: |
A core sample drilled from the accumulation of snow and ice over many years that have recrystallized and have trapped air bubbles from previous time periods, the composition of which can be used to reconstruct past climates and climate change; typically removed from an ice sheet (Antarctica and Greenland) or from high mountain glaciers elsewhere. NSIDCCryosphere
A cylinder of ice drilled out of a glacier or ice sheet. IPCC2013 GCW |