Humidity dependence of aerosol optical properties of light absorbing aerosols
| Project/Area Number |
21710007
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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 | Nagoya University |
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Principal Investigator |
NAKAYAMA Tomoki 名古屋大学, 太陽地球環境研究所, 助教 (40377784)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 気候変動 / エアロゾル / 光学特性 / 消散係数 / 湿度依存性 / キャビティリングダウン法 / ブラックカーボン / 有機エアロゾル / 地球温暖化 / 放射収支 / 大気エアロゾル / 湿度依存症 / レーザー分光 |
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| Research Abstract |
Understanding of relative humidity(RH) dependence of optical properties of atmospheric aerosols is essential to estimate their effects on radiation balance in the Earth's atmosphere. In this work, we have developed a cavity ring-down spectrometer to measure RH dependence of aerosol extinction coefficients. By applying the instrument to observational and laboratory studies, it is found that the refractive index, chemical compositions, and mixing states of aerosols play important roles to determine the RH dependence of extinction coefficients.
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Report
(4 results)
Research Products
(68 results)
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[Journal Article] Comparison of laser-induced fluorescence and chemiluminescence measurements of NO_2 at an urban site2011
Author(s)
Suzuki, H., Miyao, Y., Nakayama, T., Pearce, J.K., Matsumi, Y., Takahashi, K., Kita, K., Tonokura, K.
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Journal Title
Atmos.Environ
Volume: VOL.45
Issue: 34
Pages: 6233-6240
DOI
Related Report
Peer Reviewed
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