当前位置:
X-MOL 学术
›
Glob. Planet. Change
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
The presence of the Tibetan Plateau lowers atmospheric CO2 levels via the Atlantic-Pacific carbon seesaw
Global and Planetary Change ( IF 4.0 ) Pub Date : 2024-12-18 , DOI: 10.1016/j.gloplacha.2024.104681 Jinlong Du, Jun Tian, Aixue Hu, Yongqiang Yu, Baohuang Su, Dabang Jiang
Global and Planetary Change ( IF 4.0 ) Pub Date : 2024-12-18 , DOI: 10.1016/j.gloplacha.2024.104681 Jinlong Du, Jun Tian, Aixue Hu, Yongqiang Yu, Baohuang Su, Dabang Jiang
The presence of the Tibetan Plateau is believed to lower p CO2 atm by stimulating weathering carbon sink, during which the global ocean is considered a passive carbon reservoir despite the tremendous marine carbon inventory. Yet, recent studies reveal that the orographic forcing of the Tibetan Plateau could lead to drastic changes in ocean circulation, which would substantially affect basin-scale carbon storage and hence p CO2 atm . However, this connection between the presence of the Tibetan Plateau and changes in the oceanic carbon inventory remains insufficiently investigated. Here, by employing a state-of-the-art ocean-biogeochemical model, we explore the role of the Tibetan Plateau in determining basin-scale carbon storage patterns based on an idealized experimental design. We find that the presence of the Tibetan Plateau substantially enhances deep Pacific carbon storage and hence lowers p CO2 atm via essential reorganization of the meridional overturning circulation, particularly associated with the development of the Pacific halocline. Moreover, the presence of the Tibetan Plateau greatly affects the oceanic carbon uptake in the Northern Hemisphere, which is likely controlled by the variations in surface alkalinity.
中文翻译:
青藏高原的存在通过大西洋-太平洋碳跷跷板降低了大气中的 CO2 水平
青藏高原的存在被认为通过刺激风化碳汇来降低 pCO2atm,在此期间,尽管海洋碳储量巨大,但全球海洋被认为是一个被动的碳库。然而,最近的研究表明,青藏高原的地形强迫可能导致海洋环流的剧烈变化,这将严重影响流域规模的碳储存,从而影响 pCO2atm。然而,青藏高原的存在与海洋碳储量变化之间的这种联系仍未得到充分研究。在这里,通过采用最先进的海洋生物地球化学模型,我们探索了青藏高原在基于理想化实验设计确定流域尺度碳储存模式中的作用。我们发现,青藏高原的存在大大增强了太平洋深部碳储存,因此通过对经向翻转环流的必要重组,特别是与太平洋卤跃层的发展有关,降低了 pCO2atm。此外,青藏高原的存在极大地影响了北半球海洋碳吸收,这可能受到表面碱度变化的控制。
更新日期:2024-12-18
中文翻译:
青藏高原的存在通过大西洋-太平洋碳跷跷板降低了大气中的 CO2 水平
青藏高原的存在被认为通过刺激风化碳汇来降低 pCO2atm,在此期间,尽管海洋碳储量巨大,但全球海洋被认为是一个被动的碳库。然而,最近的研究表明,青藏高原的地形强迫可能导致海洋环流的剧烈变化,这将严重影响流域规模的碳储存,从而影响 pCO2atm。然而,青藏高原的存在与海洋碳储量变化之间的这种联系仍未得到充分研究。在这里,通过采用最先进的海洋生物地球化学模型,我们探索了青藏高原在基于理想化实验设计确定流域尺度碳储存模式中的作用。我们发现,青藏高原的存在大大增强了太平洋深部碳储存,因此通过对经向翻转环流的必要重组,特别是与太平洋卤跃层的发展有关,降低了 pCO2atm。此外,青藏高原的存在极大地影响了北半球海洋碳吸收,这可能受到表面碱度变化的控制。