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| Titel |
VOC emissions from a boreal forest - direct ecosystem scale measurements by PTR-MS in 2006-2008 |
| VerfasserIn |
R. Taipale, T. M. Ruuskanen, M. K. Kajos, J. Patokoski, H. Hakola, J. Rinne |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250025013
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| Zusammenfassung |
| To quantify emissions of oxygenated volatile organic compounds (OVOCs) in the ecosystem
scale and to assess their importance in comparison with monoterpene emissions, we carried
out micrometeorological flux measurements above a Scots pine forest in southern
Finland in June–September 2006, March–September 2007, and May–August 2008.
These direct measurements were conducted using the disjunct eddy covariance
method and proton transfer reaction mass spectrometry (PTR-MS) was used for the
associated VOC mixing ratio measurements. OVOC emissions consisted of methanol,
acetaldehyde, and acetone. They were of the same order of magnitude as monoterpene
emissions. The compatibility of the measured monoterpene emissions with the
traditional temperature dependent emission algorithm was reasonable. The measurement
data will be used to study the seasonal and interannual variability of emissions. |
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