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| Titel |
Development and validation of inexpensive, automated, dynamic flux chambers |
| VerfasserIn |
B. B. Almand-Hunter, J. T. Walker, N. P. Masson, L. Hafford, M. P. Hannigan |
| 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 ; 8, no. 1 ; Nr. 8, no. 1 (2015-01-13), S.267-280 |
| Datensatznummer |
250116051
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| Publikation (Nr.) |
 copernicus.org/amt-8-267-2015.pdf |
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| Zusammenfassung |
| We developed and validated an automated, inexpensive, and continuous
multiple-species gas-flux monitoring system that can provide data
for a variety of relevant atmospheric pollutants, including
O3, CO2, and NOx. Validation consisted of
conducting concurrent gas-phase dry-deposition experiments, using
both dynamic flux chambers and an eddy-covariance system, in
a grassy clearing in the Duke Forest (Chapel Hill, NC). Experiments
were carried out in June and September under a variety of
meteorological conditions. Ozone-deposition measurements from the
two methods matched very well (4–10% difference in mean flux
rate) when the leaf-area index (LAI) inside the chambers was
representative of the average LAI in the field. The dynamic flux
chambers can be considered an accurate measurement system under
these conditions. |
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