Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth, PL1 3DH, UK.
GEOMAR Helmholtz-Zentrum Für Ozeanforschung Kiel, Chemische Ozeanographie, Düsternbrooker Weg 20, 24105, Kiel, Germany.
Ambio. 2022 Feb;51(2):398-410. doi: 10.1007/s13280-021-01633-8. Epub 2021 Oct 10.
Human activities are changing the Arctic environment at an unprecedented rate resulting in rapid warming, freshening, sea ice retreat and ocean acidification of the Arctic Ocean. Trace gases such as nitrous oxide (NO) and methane (CH) play important roles in both the atmospheric reactivity and radiative budget of the Arctic and thus have a high potential to influence the region's climate. However, little is known about how these rapid physical and chemical changes will impact the emissions of major climate-relevant trace gases from the Arctic Ocean. The combined consequences of these stressors present a complex combination of environmental changes which might impact on trace gas production and their subsequent release to the Arctic atmosphere. Here we present our current understanding of nitrous oxide and methane cycling in the Arctic Ocean and its relevance for regional and global atmosphere and climate and offer our thoughts on how this might change over coming decades.
人类活动正以前所未有的速度改变着北极环境，导致北极迅速变暖、变淡、海冰退缩和海洋酸化。一氧化二氮（NO）和甲烷（CH）等痕量气体在大气反应性和北极辐射预算中都起着重要作用，因此极有可能影响该地区的气候。然而，对于这些快速的物理和化学变化将如何影响北冰洋主要气候相关痕量气体的排放，人们知之甚少。这些胁迫因素的综合后果构成了一系列复杂的环境变化，这些变化可能会影响痕量气体的产生及其随后向北极大气的释放。本文介绍了我们目前对北极海洋中一氧化二氮和甲烷循环及其对区域和全球大气和气候的重要性的理解，并就未来几十年这种情况可能发生的变化提出了我们的看法。
