| Project/Area Number |
24740326
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | Japan, Meteorological Research Institute |
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Principal Investigator |
YUMIMOTO Keiya 気象庁気象研究所, 環境・応用気象研究部, 研究官 (50607786)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 逆推定 / 化学輸送モデル / 衛星観測 / 大気環境 / 東アジア / グリーン関数法 / エミッションインベントリ / 逆推計 / 一酸化炭素 / 大気汚染防止・浄化 |
|---|
| Research Abstract |
Carbon monoxide (CO) emissions in China in 2005-2010 were estimated by an inverse modeling, estimated by an inverse modeling, vertical CO profiles derived from satellite and a tagged CO simulation. Inversion results were validated with independent in situ observations. Modeling with a posteriori emission successfully reproduced CO outflow from the continent during winter and spring, and compensated for underestimates in central and eastern China in summer. A posteriori emissions showed large seasonal variations in which December and March emissions were on average 23% larger than August emissions, consistent with other studies. Estimated Chinese CO emissions were 184.4, 173.1, 184.6, 158.4, 157.4, and 157.3 Tg/year for 2005-2010. The decrease after 2007 is partly attributed to Chinese socioeconomic conditions. The inverse modeling system developed in this study is also applied to other pollutants (e.g., Cs-137 emitted by the Fukushima Nuclear Power Plant Accident).
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