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DOI | 10.1029/2018GL077790 |
Ocean Carbon Cycle Feedbacks Under Negative Emissions | |
Schwinger, Jorg; Tjiputra, Jerry | |
2018-05-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:10页码:5062-5070 |
文章类型 | Article |
语种 | 英语 |
国家 | Norway |
英文摘要 | Negative emissions will most likely be needed to achieve ambitious climate targets, such as limiting global warming to 1.5 degrees. Here we analyze the ocean carbon-concentration and carbon-climate feedback in an Earth system model under an idealized strong CO2 peak and decline scenario. We find that the ocean carbon-climate feedback is not reversible by means of negative emissions on decadal to centennial timescales. When preindustrial surface climate is restored, the oceans, due to the carbon-climate feedback, still contain about 110 Pg less carbon compared to a simulation without climate change. This result is unsurprising but highlights an issue with a widely used carbon cycle feedback metric. We show that this metric can be greatly improved by using ocean potential temperature as a proxy for climate change. The nonlinearity (nonadditivity) of climate and CO2-driven feedbacks continues to grow after the atmospheric CO2 peak. |
英文关键词 | ocean carbon cycle feedbacks negative emissions nonlinearities |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000435262000059 |
WOS关键词 | CUMULATIVE CO2 EMISSIONS ; EARTH SYSTEM MODEL ; EXPERIMENTAL PROTOCOL ; CMIP5 ; PATHWAYS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26969 |
专题 | 气候变化 |
作者单位 | Bjerknes Ctr Climate Res, Uni Res Climate, Bergen, Norway |
推荐引用方式 GB/T 7714 | Schwinger, Jorg,Tjiputra, Jerry. Ocean Carbon Cycle Feedbacks Under Negative Emissions[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(10):5062-5070. |
APA | Schwinger, Jorg,&Tjiputra, Jerry.(2018).Ocean Carbon Cycle Feedbacks Under Negative Emissions.GEOPHYSICAL RESEARCH LETTERS,45(10),5062-5070. |
MLA | Schwinger, Jorg,et al."Ocean Carbon Cycle Feedbacks Under Negative Emissions".GEOPHYSICAL RESEARCH LETTERS 45.10(2018):5062-5070. |
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