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| 題名: | Measurements of total hydroxyl radical reactivity during CABINEX 2009 –Part 1: Field measurements |
| 作者: | 谷邁世;Hansen, R. F.;Griffith, S. M.;Dusanter, S.;Rickly, P. S.;Stevens, P. S.;Bertman, S. B.;Carroll, M. A.;Erickson, M. H.;Flynn, J. H.;Grossberg, N.;Jobson, B. T.;Lefer, B. L.;Wallace, H. W. |
| 貢獻者: | 地球科學學院大氣科學學系 |
| 關鍵詞: | Hydroxides;Measurement;Ocean, Atmosphere;Sciences of the Universe;Volatile organic compounds |
| 日期: | 2014-03-21 |
| 上傳時間: | 2026-04-21 13:56:00 (UTC+8) |
| 出版者: | European Geosciences Union;Copernicus GmbH |
| 摘要: | 摘要： Abstract. Total hydroxyl radical (OH) reactivity was measured at the PROPHET (Program for Research on Oxidants: PHotochemistry, Emissions, and Transport) forested field site in northern Michigan during the 2009 Community Atmosphere–Biosphere INteraction EXperiment (CABINEX). OH reactivity measurements were made with a turbulent-flow reactor instrument at three heights from the forest floor above (21 and 31 m) and below (6 m) the canopy at three different time periods during the CABINEX campaign. In addition to total OH reactivity measurements, collocated measurements of volatile organic compounds (VOCs), inorganic species, and ambient temperature were made at the different heights. These ancillary measurements were used to calculate the total OH reactivity, which was then compared to the measured values. Discrepancies between the measured and calculated OH reactivity, on the order of 1–24 s−1, were observed during the daytime above the canopy at the 21 and 31 m heights, as previously reported for this site. The measured OH reactivity below the canopy during the daytime was generally lower than that observed above the canopy. Closer analysis of the measurements of OH reactivity and trace gases suggests that the missing OH reactivity could come from oxidation products of VOCs. These results suggest that additional unmeasured trace gases, likely oxidation products, are needed to fully account for the OH reactivity measured during CABINEX.
出版者： Copernicus GmbH
出版日期： 2014-03-21
出處： Atmospheric Chemistry and Physics, 2014-03, Vol.14 (6), p.2923-2937
資源來源： Agricultural & Environmental Science Collection
版權： COPYRIGHT 2014 Copernicus GmbH
版權： licence_http://creativecommons.org/publicdomain/zero
識別號： ISSN: 1680-7324
識別號： ISSN: 1680-7316
識別號： EISSN: 1680-7324
識別號： DOI: 10.5194/acp-14-2923-2014 |
| 顯示於類別: | [大氣科學學系] 期刊論文
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