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| Titel |
Bromoform in the tropical boundary layer of the Maritime Continent during OP3 |
| VerfasserIn |
J. A. Pyle, M. J. Ashfold, N. R. P. Harris, A. D. Robinson, N. J. Warwick, G. D. Carver, B. Gostlow, L. M. O'Brien, A. J. Manning, S. M. Phang, S. E. Yong, K. P. Leong, E. H. Ung, S. Ong |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 11, no. 2 ; Nr. 11, no. 2 (2011-01-18), S.529-542 |
| Datensatznummer |
250009182
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| Publikation (Nr.) |
 copernicus.org/acp-11-529-2011.pdf |
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| Zusammenfassung |
| We report measurements of bromoform made by gas chromatography during the
OP3 campaign in 2008. Measurements were made simultaneously for a few days
at the World Meteorological Organization (WMO) Global Atmospheric Watch
(GAW) site in the Danum Valley, a rainforest location in Sabah, Borneo, and
at a nearby coastal site at Kunak. Background values at Kunak were higher
than those measured in the rainforest (2–5 ppt compared with 1 ppt) and
excursions away from the background were very much higher, reaching 10 s of
ppt. Measurements of C2Cl4, an industrial tracer, showed no
significant difference in background at the two sites. Modelling using two
different models can reproduce a number of the observed features. The data
are consistent with a strong, local coastal source of bromoform in eastern
Sabah and can be used to infer the strength of the source of bromoform in
South East Asia. However, they provide only a very weak constraint on global
emissions. The global model results highlight the difficulty for short-lived
species of extrapolating limited duration, local measurements to a global
source. |
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