Analytical relationships between atmospheric carbon dioxide, carbon emissions, and ocean processes
Analytical relationships between atmospheric carbon dioxide, carbon emissions, and ocean processes
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DOI：
10.1029/2008gb003184
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发表时间：
2008-09
影响因子：
5.2
通讯作者：
P. Goodwin;M. Follows;Richard G. Williams
中科院分区：
文献类型：
--
作者：
P. Goodwin;M. Follows;Richard G. Williams
导致大气CO2增加的碳扰动部分被海洋和气候系统其他部分的碳吸收所抵消。大气CO2接近一个新的平衡状态，在海洋入侵停止后，通常在1000年后达到，由PCO 2 = P0 exp（δ IX/IB）给出，其中P0和PCO 2是大气CO2的初始和最终分压，δ IX是CO2扰动，IB是海气系统的缓冲碳存量。扰动δIχ包括陆地储层的碳排放和变化，以及海洋表面碳不平衡的变化和有机软组织物质的沉降。海洋碳酸钙（δ ICaCO 3）的变化导致与大气CO2的关系更加复杂，其中PCO 2的变化比例为PCO 2 = P0{IO（A-C）/（IO（A-C）-δ ICaCO 3）}，然后通过类似的指数关系进行修正，其中IO（A-C）是滴定碱度和溶解无机碳之间的差异。整体大气PCO 2的响应范围的扰动是敏感的非线性相互作用，取决于产品的单独的放大因子为每个扰动。
Carbon perturbations leading to an increase in atmospheric CO2 are partly offset by the carbon uptake by the oceans and the rest of the climate system. Atmospheric CO2 approaches a new equilibrium state, reached after ocean invasion ceases after typically 1000 years, given by PCO2 = P0exp(δIχ/IB), where P0 and PCO2 are the initial and final partial pressures of atmospheric CO2, δIχ is a CO2 perturbation, and IB is the buffered carbon inventory of the air‐sea system. The perturbation, δIχ, includes carbon emissions and changes in the terrestrial reservoir, as well as ocean changes in the surface carbon disequilibrium and fallout of organic soft tissue material. Changes in marine calcium carbonate, δICaCO3, lead to a more complex relationship with atmospheric CO2, where PCO2 is changed by the ratio PCO2 = P0{IO(A − C)/(IO(A − C) − δICaCO3)} and then modified by a similar exponential relationship, where IO(A − C) is the difference between the inventories of titration alkalinity and dissolved inorganic carbon. The overall atmospheric PCO2 response to a range of perturbations is sensitive to their nonlinear interactions, depending on the product of the separate amplification factors for each perturbation.