2017 Fiscal Year Final Research Report
Development of a high sensitive sensor for nitrous oxide
| Project/Area Number |
15H03845
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Green/Environmental chemistry
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
小杉 緑子 京都大学, 農学研究科, 教授 (90293919)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | レーザー分光 / 亜酸化窒素 / 超高感度計測 / フラックス |
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| Outline of Final Research Achievements |
A new technique for quantifying nitrous oxide (N2O) in the terrestrial atmosphere has been developed, because N2O is an important greenhouse gas and thus its atmospheric processes should be understood accurately. Since the background concentration of N2O in the troposphere is about 330 ppb, we utilized a semiconductor laser-based high-sensitive spectroscopy technique for in-situ and real-time detection of atmospheric N2O. The laser spectrometer has been combined with a closed chamber system that has also been developed in this study, thereby we made a performance test of our system by observations of N2O emission from the soil surfaces in a temperate forest. No significant emission has been observed, which is indicative that denitrification processes in the surface soil are rather ineffective.
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| Free Research Field |
大気化学
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