Reemergence of Anthropogenic Carbon Into the Ocean's Mixed Layer Strongly Amplifies Transient Climate Sensitivity
Reemergence of Anthropogenic Carbon Into the Ocean's Mixed Layer Strongly Amplifies Transient Climate Sensitivity
复制标题
人为碳重新进入海洋混合层强烈放大了瞬态气候敏感性
DOI:
10.1029/2020gl089275
复制
发表时间:
2020
影响因子:
5.2
通讯作者:
Rodgers K
中科院分区:
文献类型:
--
作者:
Rodgers K
A positive marine chemistry‐climate feedback was originally proposed by Revelle and Suess (1957, https://doi.org/10.3402/tellusa.v9i1.9075), whereby the invasion flux of anthropogenic carbon into the ocean serves to inhibit future marine CO2uptake through reductions to the buffering capacity of surface seawater. Here we use an ocean circulation‐carbon cycle model to identify an upper limit on the impact of reemergence of anthropogenic carbon into the ocean's mixed layer on the cumulative airborne fraction of CO2in the atmosphere. We find under an RCP8.5 emissions pathway (with steady circulation) that the cumulative airborne fraction of CO2has a sevenfold reduction by 2100 when the CO2buffering capacity of surface seawater is maintained at preindustrial levels. Our results indicate that the effect of reemergence of anthropogenic carbon into the mixed layer on the buffering capacity of CO2amplifies the transient climate sensitivity of the Earth system.
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影响因子:
9.5
作者:
Richard G. Williams;Anna Katavouta;P. Goodwin
通讯作者:
P. Goodwin
影响因子:
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J. Sarmiento
影响因子:
4.9
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P. Goodwin
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5.2
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