A new multi-gas constrained model of trace gas non-homogeneous transport in firn: evaluation and behaviour at eleven polar sites

• Published in: Atmospheric Chemistry and Physics
• Main Authors: Witrant, E., Martinerie, P., Hogan, C., Laube, J. C., Kawamura, K., Capron, E., Montzka, S. A., Dlugokencky, E. J., Etheridge, D., Blunier, T., Sturges, W. T.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2012
• Subjects: article; Verlagsveröffentlichung; Antarctic; Arctic; Berkner Island; Devon Island; Dronning Maud Land; Siple; Siple Dome; South Pole; Antarc*; ice core; South pole
• Online Access: https://doi.org/10.5194/acp-12-11465-2012; https://noa.gwlb.de/receive/cop_mods_00045748; https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00045368/acp-12-11465-2012.pdf; https://acp.copernicus.org/articles/12/11465/2012/acp-12-11465-2012.pdf

Insoluble trace gases are trapped in polar ice at the firn-ice transition, at approximately 50 to 100 m below the surface, depending primarily on the site temperature and snow accumulation. Models of trace gas transport in polar firn are used to relate firn air and ice core records of trace gases to...