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  Monoterpene chemical speciation in a tropical rainforest: variation with season, height, and time of day at the Amazon Tall Tower Observatory (ATTO)

Yañez-Serrano, A. M., Nölscher, A. C., Bourtsoukidis, E., Alves, E. G., Ganzeveld, L., Bonn, B., Wolff, S., Sa, M., Yamasoe, M., Williams, J., Andreae, M. O., & Kesselmeier, J. (2018). Monoterpene chemical speciation in a tropical rainforest: variation with season, height, and time of day at the Amazon Tall Tower Observatory (ATTO). Atmospheric Chemistry and Physics, 18(5), 3403-3418. doi:10.5194/acp-18-3403-2018.

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アイテムのパーマリンク: https://hdl.handle.net/21.11116/0000-0000-3C17-4 版のパーマリンク: https://hdl.handle.net/21.11116/0000-000C-CD9C-E
資料種別: 学術論文

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BEX580.pdf (出版社版), 762KB
ファイルのパーマリンク:
https://hdl.handle.net/21.11116/0000-0000-CA05-7
ファイル名:
BEX580.pdf
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-
OA-Status:
Gold
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公開
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application/pdf / [MD5]
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OA
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 作成者:
Yañez-Serrano, Ana María1, 著者
Nölscher, Anke Christine, 著者
Bourtsoukidis, Efstratios, 著者
Alves, Eliane Gomes, 著者
Ganzeveld, Laurens, 著者
Bonn, Boris, 著者
Wolff, Stefan, 著者
Sa, Marta, 著者
Yamasoe, Marcia, 著者
Williams, Jonathan, 著者
Andreae, Meinrat O., 著者
Kesselmeier, Jürgen, 著者
所属:
1External Organizations, ou_persistent22              

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 要旨: Speciated monoterpene measurements in the Amazon rainforest air are scarce, but important in order to understand their contribution to the overall reactivity of volatile organic compound (VOCs) emissions towards the main atmospheric oxidants, such as hydroxyl radical (OH), ozone (O3) and nitrate radical (NO3). In this study, we present the chemical speciation of gas phase monoterpenes measured in the tropical rainforest at the Amazon Tall Tower Observatory (ATTO, Amazonas, Brazil). Samples of VOCs were collected by two automatic sampling systems positioned on a tower at 12 and 24 m height and analysed using Gas Chromatography Flame Ionization Detection (GC-FID). The samples were collected in October 2015, representing the dry season, and compared with previous wet and dry season studies at the site. In addition, vertical profile measurements (at 12 and 24 m) of total monoterpene mixing ratios were made using Proton-Transfer Reaction Mass Spectrometry (PTR-MS). The results showed a distinctly different chemical speciation between day and night. For instance, α-pinene was more abundant during the day, whereas limonene was more abundant at night. Reactivity calculations showed that the most abundant compounds may not be the most atmospheric chemically relevant compounds. Furthermore, inter- and intra-annual results demonstrate similar chemodiversity during the dry seasons analysed. Simulations with a canopy exchange modelling system compare relatively well with the observed temporal variability in speciated monoterpene mixing ratios, but also indicate the necessity of more experiments to enhance our understanding of in-canopy sinks of these monoterpenes.

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 日付: 2017-09-152017-09-192018-03
 出版の状態: 出版
 ページ: -
 出版情報: -
 目次: -
 査読: -
 識別子(DOI, ISBNなど): その他: BEX580
DOI: 10.5194/acp-18-3403-2018
 学位: -

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出版物 1

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出版物名: Atmospheric Chemistry and Physics
種別: 学術雑誌
 著者・編者:
所属:
出版社, 出版地: Katlenburg-Lindau, Germany : European Geosciences Union
ページ: - 巻号: 18 (5) 通巻号: - 開始・終了ページ: 3403 - 3418 識別子(ISBN, ISSN, DOIなど): ISSN: 1680-7316
CoNE: https://pure.mpg.de/cone/journals/resource/111030403014016