In-situ observation of bubble trapping in polar firn

• Main Authors: Schaller, Christoph Florian, Freitag, Johannes, Sowers, Todd, Vinther, Bo, Weinhart, Alexander, Eisen, Olaf
• Format: Conference Object
• Language: unknown
• Published: 2017
• Subjects: East Antarctica; Greenland; Dome Fuji; Renland; Antarc*; Antarctica
• Online Access: https://epic.awi.de/id/eprint/49628/; https://epic.awi.de/id/eprint/49628/1/EGU2017-14721-1.pdf; https://hdl.handle.net/10013/epic.05b61388-a40d-4e9d-968e-b76257565c78; https://hdl.handle.net/

The air trapped in polar ice cores is not a direct record of past atmospheric composition but is strongly influenced by the process of firnification as bubbles are only sealed at a certain point, when the respective horizontal layer reaches a so called “critical” porosity. In order to investigate th...