Applicability of CO2-related concentration indicators by classifying various seawaters in the world
Applicability of CO2-related concentration indicators by classifying various seawaters in the world
复制标题
世界各海水分类CO2相关浓度指标的适用性
DOI:
10.1016/j.ijggc.2021.103489
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发表时间:
2021
影响因子:
3.9
通讯作者:
Yuji Watanabe
中科院分区:
文献类型:
--
作者:
Shuxuan Sun;Toru Sato;Keisuke Uchimoto;Yuji Watanabe
Carbon dioxide capture and storage is expected to reduce large amount of CO2emissions from large sources, such as coal power plants. For offshore CO2storage, it is necessary to monitor CO2concentration in seawater to ensure safe storage. However, such concentrations have large regional and seasonal variations due to biological activity. In our previous study, to avoid the misidentification of large natural fluctuations as abnormally high CO2concentrations (false positive), a method was proposed using multiple indicators of CO2-related concentration in seawater: namely, anomalies are judged only if there are data that exceed statistical criteria, e.g. 3-sigma, of all the multiple correlations of different types. This is because any single indicator can have data exceeding such criteria in theory. In this study, we examined the universality of applying multiple indicators of different types to seawaters around the world. The results show that the world seawaters can be classified into three groups using the relationships between alkalinity and salinity and the vertical profiles of dissolved oxygen, and that at least one of the four indicators has a clear correlation in each group, suggesting that the applicability of the proposed method using multiple indicators has been proved.
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影响因子:
2.6
作者:
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通讯作者:
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DOI:
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发表时间:
2008
期刊:
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影响因子:
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2003
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DOI:
10.5928/kaiyou.1.75
发表时间:
1992
期刊:
Oceanography in Japan
影响因子:
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