Yashu, Liu and Renbin, Zhu and Xianglan, Li and Hua, Xu and Liguang, Sun (2009) Temporal and spatial variations of atmospheric methane concentration and δ13 C-CH4 near the surface on the Millor Peninsula, East Antarctica. Advances in Polar Science, 20 (1). pp. 22-31.
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Abstract
During the 22nd Chinese Antarctic Research Expedition (CHINARE222, 2005/06) , the atmospheric gas samples near the surface were taken on the Millor Peninsula and adjacent areas, east Antarctica, using Tedlar gas bags. The methane(CH4) concentration and δ13 C-CH4 in those samples were analyzed in the laboratory. The average value of atmospheric CH4 concentration on this peninsula was (1.87 ± 0.12) × 10(-6) , slightly higher than the global average CH4 concentration. The summertime variation of CH4 concentrations showed a large fluctuation, corresponding to the variation of air temperatures. The average δ13 C-CH4 was ( -38.26 ± 0.52) ‰. CH4 concentrations and δ13 C-CH4 at different sites varied from 1.74 × 10(-6) to 2.56 ×10(-6) and from -39.31‰ to - 31.25‰, respectively. The factors affecting CH4 concentrations and δ13 C-CH4 values have also been discussed in this study.
| Item Type: | Article |
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| Related URLs: | |
| Keywords: | Antarctica, Millor Peninsula, atmosphere, methane, carbon isotope |
| Subjects: | Natural Environment > Atmosphere |
| Organizations: | Unspecified |
| Date Deposited: | 06 Sep 2023 14:40 |
| URI: | http://library.arcticportal.org/id/eprint/2369 |
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