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| Titel |
A flow-tube based laser-induced fluorescence instrument to measure OH reactivity in the troposphere |
| VerfasserIn |
T. Ingham, A. Goddard, L. K. Whalley, K. L. Furneaux, P. M. Edwards, C. P. Seal, D. E. Self, G. P. Johnson, K. A. Read, J. D. Lee, D. E. Heard |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1867-1381
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 2, no. 2 ; Nr. 2, no. 2 (2009-08-31), S.465-477 |
| Datensatznummer |
250000562
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| Publikation (Nr.) |
 copernicus.org/amt-2-465-2009.pdf |
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| Zusammenfassung |
| A field instrument utilising the artificial generation of OH radicals in a
sliding injector flow-tube reactor with detection by laser-induced
fluorescence spectroscopy has been developed to measure the rate of decay of
OH by reaction with its atmospheric sinks. The OH reactivity instrument has
been calibrated using known concentrations of CO, NO2 and single
hydrocarbons in a flow of zero air, and the impact of recycling of OH via the
reaction HO2+NO→OH+NO2 on the measured OH reactivity has been
quantified. As well as a detailed description of the apparatus, the
capabilities of the new instrument are illustrated using representative
results from deployment in the semi-polluted marine boundary layer at the
Weybourne Atmospheric Observatory, UK, and in a tropical rainforest at the
Bukit Atur Global Atmospheric Watch station, Danum Valley, Borneo. |
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