Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL087669 |
River inflow dominates methane emissions in an Arctic coastal system | |
Cara C. Manning; Victoria L. Preston; Samantha F. Jones; Anna P. M. Michel; David P. Nicholson; Patrick J. Duke; Mohamed M. M. Ahmed; Kevin Manganini; Brent G. T. Else; Philippe D. Tortell | |
2020-04-23 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2020 |
英文摘要 | We present a year‐round time series of dissolved methane (CH4), along with targeted observations during ice melt of CH4 and carbon dioxide (CO2) in a river and estuary adjacent to Cambridge Bay, Nunavut, Canada. During the river freshet, CH4 concentrations in the river and ice‐covered estuary were up to 240,000% saturation and 19,000% saturation, respectively, but quickly dropped by >100‐fold following ice melt. Observations with a robotic kayak revealed that river‐derived CH4 and CO2 were transported to the estuary and rapidly ventilated to the atmosphere once ice cover retreated. We estimate that river discharge accounts for >95% of annual CH4 sea‐to‐air emissions from the estuary. These results demonstrate the importance of resolving seasonal dynamics in order to estimate greenhouse gas emissions from polar systems. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/248984 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Cara C. Manning,Victoria L. Preston,Samantha F. Jones,et al. River inflow dominates methane emissions in an Arctic coastal system[J]. Geophysical Research Letters,2020. |
APA | Cara C. Manning.,Victoria L. Preston.,Samantha F. Jones.,Anna P. M. Michel.,David P. Nicholson.,...&Philippe D. Tortell.(2020).River inflow dominates methane emissions in an Arctic coastal system.Geophysical Research Letters. |
MLA | Cara C. Manning,et al."River inflow dominates methane emissions in an Arctic coastal system".Geophysical Research Letters (2020). |
条目包含的文件 | 条目无相关文件。 |
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