| XU Yongfu,AOKI Shigeaki,HARADA Koh. 2009. Identification of CO2 disposal locations in an ocean general circulation model of the North Pacific. Acta Oceanologica Sinica, (1):15－24 |
| Identification of CO2 disposal locations in an ocean general circulation model of the North Pacific |
| Identification of CO2 disposal locations in an ocean general circulation model of the North Pacific |
| Received:March 25, 2007 Revised:September 22, 2008 |
| DOI： |
| Key words:ocean carbon disposal north Pacific Ocean numerical modelling sequestration |
| 中文关键词: ocean carbon disposal north Pacific Ocean numerical modelling sequestration |
| 基金项目:The New Energy and Industrial Technology Development Organization as part of "Study of Environmental Assessment for Carbon Dioxide Ocean Sequestration for Mitigation of Climate Change (SEA-COSMIC)"; the Returning Home Foundation Supported with Overseas Study Funds of the Chinese Academy of Sciences (CAS); the CAS Knowledge Innovation Program (KZCX1-SW-01-16); the CAS Hundred Talents Program. |
| Author Name | Affiliation | E-mail | | XU Yongfu | State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmos-pheric Physics, Chinese Academy of Sciences, Beijing 100029, China | xyf@mail.iap.ac.cn | | AOKI Shigeaki | Institute for Environmental Management Technology, National Institute for Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8569, Japan | | | HARADA Koh | Institute for Environmental Management Technology, National Institute for Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8569, Japan | |
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| Abstract: |
| A basin-wide ocean general circulation model of the North Pacific is used to identify which location is more effi-cient for ocean CO2 sequestration in the North Pacific. Four injection depths at each one of fifteen locations are chosen. In terms of effectiveness index (EI) and escape factor (EF), it is clear that the effectiveness increases with increasing latitude at the end of the 50 a injection period. Site-by-site differences in the EI can be over 9% for the 1 000 m injection depth in the western North Pacific at the end of 50 a of continuous injection. The difference is much larger for the 500 m injection. The difference decreases with increasing injection depth. However, the site-by-site difference is small for the injection in the eastern North Pacific. The sequestration is more efficient for the injection in the east than in the west. For the 500 m injection depth, the difference in ef-fectiveness between the west and the east is over 10% at the end of 50 a injection period. The largest concentra-tion of sequestered CO2 increases with increasing injection depth. For the injection in both the western and cen-tral North Pacific, the largest exchange flux always appears to be at about 42°N, 150°E, whereas for the injec-tion in the eastern area the large flux appears to be in the equatorial region (120°W). |
| 中文摘要: |
| A basin-wide ocean general circulation model of the North Pacific is used to identify which location is more effi-cient for ocean CO2 sequestration in the North Pacific. Four injection depths at each one of fifteen locations are chosen. In terms of effectiveness index (EI) and escape factor (EF), it is clear that the effectiveness increases with increasing latitude at the end of the 50 a injection period. Site-by-site differences in the EI can be over 9% for the 1 000 m injection depth in the western North Pacific at the end of 50 a of continuous injection. The difference is much larger for the 500 m injection. The difference decreases with increasing injection depth. However, the site-by-site difference is small for the injection in the eastern North Pacific. The sequestration is more efficient for the injection in the east than in the west. For the 500 m injection depth, the difference in ef-fectiveness between the west and the east is over 10% at the end of 50 a injection period. The largest concentra-tion of sequestered CO2 increases with increasing injection depth. For the injection in both the western and cen-tral North Pacific, the largest exchange flux always appears to be at about 42°N, 150°E, whereas for the injec-tion in the eastern area the large flux appears to be in the equatorial region (120°W). |
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