Regional scale impacts of distinct CO2 additions in the North Sea
Regional scale impacts of distinct CO2 additions in the North Sea
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DOI：
10.1016/j.marpolbul.2008.04.048
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发表时间：
2008-08-01
影响因子：
5.8
通讯作者：
Holt, J.
中科院分区：
文献类型：
--
作者：
Blackford, J. C.;Jones, N.;Holt, J.
一个海洋系统模型适用于西北欧大陆架海是用来模拟不同的CO2添加的后果，如那些可能出现的地质封存计划失败。泄漏情景的选择仅受少量可用观察结果的指导，并需要几个假设;因此，所报告的模拟被设计为最坏情况情景。模拟表明，只有最极端的情况下才能产生扰动，有可能对泄漏事件发生地以外的环境产生影响。潮汐驱动的混合，而不是海气交换被确定为增加的CO2扩散的主要机制。我们表明，鉴于现有的证据，封存泄漏的环境影响可能是微不足道的，相比预期的影响，从持续的非缓解大气CO2排放和随后的海洋系统酸化。我们还得出结论，更多的研究，包括泄漏模拟和生态影响的评估是必要的，以充分了解二氧化碳增加到海洋系统的影响。(C)2008爱思唯尔有限公司保留所有权利。
A marine system model applied to the North West European shelf seas is used to Simulate the consequences of distinct CO2 additions such as those that could arise from a failure of geological sequestration schemes. The choice of leak scenario is guided by only a small number of available observations and requires several assumptions; hence the simulations reported on are engineered to be worse case scenarios. The simulations indicate that only the most extreme scenarios are capable of producing perturbations that are likely to have environmental consequences beyond the locality of a leak event. Tidally driven mixing rather than air-sea exchange is identified as the primary mechanism for dispersal of added CO2. We show that, given the available evidence, the environmental impact of a sequestration leak is likely to be insignificant when compared to the expected impact from continued non-mitigated atmospheric CO2 emissions and the subsequent acidification of the marine system. We also conclude that more research, including both leak simulations and assessment of ecological impacts is necessary to fully understand the impact of CO2 additions to the marine system. (C) 2008 Elsevier Ltd. All rights reserved.