Development and validation of inexpensive, automated, dynamic flux chambers
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 O<sub>3</sub>, CO<sub>2</sub>, and NO<sub>x</sub>. Validation c...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2015-01-01
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| Series: | Atmospheric Measurement Techniques |
| Online Access: | http://www.atmos-meas-tech.net/8/267/2015/amt-8-267-2015.pdf |
| Summary: | 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
O<sub>3</sub>, CO<sub>2</sub>, and NO<sub>x</sub>. 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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| ISSN: | 1867-1381 1867-8548 |