Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL091963 |
Air‐Sea Ammonia Fluxes Calculated from High‐Resolution Summertime Observations Across the Atlantic Southern Ocean | |
K. E. Altieri; K.A.M. Spence; S. Smith | |
2021-04-18 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | Oceanic ammonia emissions are the largest natural source of ammonia globally, but the magnitude of the air‐sea flux in remote regions with minimal human influence remains uncertain. Here, we measured the concentration of surface ocean ammonium and atmospheric ammonia gas every two hours across a latitudinal transect (34.5ºS to 61ºS) of the Atlantic Southern Ocean during summer. Surface ocean ammonium concentrations ranged from undetectable to 0.36 µM and ammonia gas concentrations ranged from 0.6 to 5.1 nmol m‐3. Calculated ammonia fluxes ranged from ‐2.8 to ‐75 pmol m‐2 s‐1, and were consistently from the atmosphere into the ocean, even in regions where surface ocean ammonium concentrations were relatively high. As expected, temperature was the dominant control on the air‐sea ammonia flux across the latitudinal transect. However, a sensitivity analysis suggests that seasonality in the surface Southern Ocean nitrogen cycle may have a major influence on the direction of the ammonia flux. |
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/322808 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | K. E. Altieri,K.A.M. Spence,S. Smith. Air‐Sea Ammonia Fluxes Calculated from High‐Resolution Summertime Observations Across the Atlantic Southern Ocean[J]. Geophysical Research Letters,2021. |
APA | K. E. Altieri,K.A.M. Spence,&S. Smith.(2021).Air‐Sea Ammonia Fluxes Calculated from High‐Resolution Summertime Observations Across the Atlantic Southern Ocean.Geophysical Research Letters. |
MLA | K. E. Altieri,et al."Air‐Sea Ammonia Fluxes Calculated from High‐Resolution Summertime Observations Across the Atlantic Southern Ocean".Geophysical Research Letters (2021). |
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