| Project/Area Number |
22710026
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Japan Agency for Marine-Earth Science and Technology |
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Principal Investigator |
IRIE Hitoshi 独立行政法人海洋研究開発機構, 地球環境変動領域, 研究員 (40392956)
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| Project Period (FY) |
2010 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2010: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 環境計測 / 二酸化硫黄 / インバージョン法 / 遠隔測定 / MAX-DOAS / インバージョン |
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| Research Abstract |
The MAX-DOAS-measured scattered sunlight spectrum data were analyzed by the newly-developed inversion method for SO2.It was suggested that in Japan and China the free-tropospheric SO2 concentration was usually lower than 1 ppbv and the annual-mean PBL SO2 concentration could reach 3 ppbv at an urban site. In March 2011, an influence of trans-boundary SO2 pollution from China on Okinawa was suggested. Combined analysis with satellite data suggested that their precision is about 0.5-1.0 DU. Considering the precision, the maximum column concentration of about 2 DU in East Asia was found around the central eastern China.
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