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Creator:: Buizert, Christo, Sowers, Todd, and Blunier, Thomas
Abstract:: During rapid variations of the atmospheric mixing ratio of a trace gas, diffusive transport in the porous firn layer atop ice sheets and glaciers alters the isotopic composition of that gas relative to the overlying atmosphere. Records of past atmospheric trace gas isotopic composition from ice cores and firn need...
Resource Type:: Article
Full Text:: . Sowers was supported through NSF grant ARC 08- 06407. We want to thank Steve Montzka, Ed Dlugokencky

Creator:: Mitchell, Logan, Brook, Edward J., Lee, James E., Buizert, Christo, and Sowers, Todd
Abstract:: The origin of the late pre-industrial Holocene (LPIH) increase in atmospheric methane concentrations has been much debated. Hypotheses invoking changes in solely anthropogenic sources or solely natural sources have been proposed to explain the increase in concentrations. Here two high-resolution, high-precision ice core methane concentration records from Greenland and Antarctica...
Full Text:: ? Atmos. Chem. Phys. 7, 2119 (2007). 11. S. A. Montzka et al., Small Interannual Variability of Global

Creator:: Mitchell, Logan E., Buizert, Christo, Brook, Edward J., Rhodes, Rachael H., and et al.
Abstract:: Interpretation of ice core trace gas records depends on an accurate understanding of the processes that smooth the atmospheric signal in the firn. Much work has been done to understand the processes affecting air transport in the open pores of the firn, but a paucity of data from air trapped...
Full Text:: . Orsi, M. Aydin, S. A. Montzka, T. Sowers, and P. P. Tans (2011), Controls on the movement and

Creator:: Mitchell, Logan E., Buizert, Christo, Brook, Edward J., Rhodes, Rachael H., and et al.
Abstract:: Interpretation of ice core trace gas records depends on an accurate understanding of the processes that smooth the atmospheric signal in the firn. Much work has been done to understand the processes affecting air transport in the open pores of the firn, but a paucity of data from air trapped...
Full Text:: WAIS Divide ice coring site is located near the West Antarctic Ice Sheet flow divide at 79°28.058′S

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