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| Titel |
A network of autonomous surface ozone monitors in Antarctica: technical description and first results |
| VerfasserIn |
S. J.-B. Bauguitte, N. Brough, M. M. Frey, A. E. Jones, D. J. Maxfield, H. K. Roscoe, M. C. Rose, E. W. Wolff |
| 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 ; 4, no. 4 ; Nr. 4, no. 4 (2011-04-01), S.645-658 |
| Datensatznummer |
250001925
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| Publikation (Nr.) |
 copernicus.org/amt-4-645-2011.pdf |
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| Zusammenfassung |
| A suite of 10 autonomous ozone monitoring units, each powered using
renewable energy, was developed and built to study surface ozone in
Antarctica during the International Polar Year (2007–2009). The monitoring
systems were deployed in a network around the Weddell Sea sector of coastal
Antarctica with a transect up onto the Antarctic Plateau. The aim was to
measure for a full year, thus gaining a much-improved broader view of
boundary layer ozone seasonality at different locations as well as of
factors affecting the budget of surface ozone in Antarctica. Ozone mixing
ratios were measured based on UV photometry using a modified version of the
commercial 2B Technologies Inc. Model 202 instrument. All but one of the
autonomous units measured successfully within its predefined duty cycle
throughout the year, with some differences in performance dependent on power
availability and ambient temperature. Mean data recovery after removal of
outliers was on average 70% (range 44–83%) and precision varied
between 1.5 and 8 ppbv, thus was sufficiently good to resolve year-round the
main ozone features of scientific interest. We conclude that, with adequate
power, and noting a minor communication problem, our units would be able to
operate successfully at ambient temperatures down to −60 °C. Systems
such as the one described in this paper, or derivatives of it, could
therefore be deployed either as local or regional networks elsewhere in the
Arctic or Antarctic. Here we present technical information and first results
from the experiment. |
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