Characterization of black carbon over East Asian region in the last 100 years
Project/Area Number |
26550021
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Environmental dynamic analysis
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Research Institution | Japan Agency for Marine-Earth Science and Technology |
Principal Investigator |
MIYAKAWA Takuma 国立研究開発法人海洋研究開発機構, 地球表層物質循環研究分野, 研究員 (30707568)
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Co-Investigator(Kenkyū-buntansha) |
池田 恒平 国立研究開発法人国立環境研究所, 地球環境研究センター, 特別研究員 (60726868)
|
Co-Investigator(Renkei-kenkyūsha) |
NAGASHIMA Kana 国立研究開発法人海洋研究開発機構, 地球環境観測研究開発センター, 技術研究員 (90426289)
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Project Period (FY) |
2014-04-01 – 2017-03-31
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Project Status |
Completed (Fiscal Year 2016)
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Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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Keywords | 炭素分析 / 堆積物中BC / 人為起源 / 発生源寄与率評価 / 人為起源影響 / 堆積物中BC含有率 |
Outline of Final Research Achievements |
Deposition flux of black carbon (BC) over the Sea of Japan (SoJ) side region in northern Japan was investigated by analyzing BC content in the sediment core sampled from Lake Ichinomegata, Akita, and simulating the transport and deposition of BC using a global chemical model, GEOS-Chem. GEOS-Chem was improved by taking into consideration faster wet removal of BC near the emissions sources, and was evaluated with the world-wide observation data sets. A large fraction (88%) of BC deposited over the SoJ side region is originated from East Asian continents. Annual BC deposition flux increased from 57 mg/m2/yr to 136 mg/m2/yr between 1950s and 2000s. The emission of BC over East Asian countries during the same period is steeper than this trend. The possible cause of this feature is that the recent increasing trend in sea surface temperature and precipitation over the SoJ is reducing the transport efficiency of BC from the source regions to Japan.
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Report
(4 results)
Research Products
(9 results)
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[Presentation] Long-range transport of black carbon to the Arctic: Tagged tracer simulation using GEOS-Chem2017
Author(s)
Ikeda, K., Tanimoto, H., Sugita, T., Akiyoshi, H., Kanaya, Y., Zhu, C., Taketani F.
Organizer
The 8th International GEOS-Chem Meeting
Place of Presentation
Boston, USA
Year and Date
2017-05-02
Related Report
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[Presentation] 定期貨物船によるアジア・オセアニア域でのO3, CO, PM2.5, BC観測と全球・領域化学輸送モデルの比較2015
Author(s)
池田恒平, 谷本浩志, 奈良英樹, 向井人史, 野尻幸宏, 遠嶋康徳, 森野悠, 永島達也
Organizer
第21回大気化学討論会
Place of Presentation
東京工業大学大岡山キャンパス(東京都目黒区)
Year and Date
2015-10-19
Related Report
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[Presentation] Multi-model comparison of O3, CO, PM2.5, and BC with cargo ship observations in Asia and Oceania2015
Author(s)
K. Ikeda, H. Tanimoto, H. Nara, H. Mukai, Y. Nojiri, Y. Tohjima, Yu Morino, Tatsuya Nagashima
Organizer
7th International GEOS-Chem Meeting
Place of Presentation
Harvard University (Cambridge, MA, US)
Year and Date
2015-05-04
Related Report
Int'l Joint Research