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| Titel |
Operational considerations to improve total ozone measurements with a Microtops II ozone monitor |
| VerfasserIn |
J. L. Gómez-Amo, V. Estellés, A. Sarra, R. Pedrós, M. P. Utrillas, J. A. Martínez-Lozano, C. González-Frias, E. Kyrö, J. M. Vilaplana |
| 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 ; 5, no. 4 ; Nr. 5, no. 4 (2012-04-19), S.759-769 |
| Datensatznummer |
250002777
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| Publikation (Nr.) |
 copernicus.org/amt-5-759-2012.pdf |
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| Zusammenfassung |
| A Microtops II "ozone monitor" with UV channels centered at 305.5, 312.5,
and 320 nm has been used routinely in six experimental campaigns carried out
in several geographic locations and seasons, covering latitudes from 35 to
68° N during the last ten years (2001–2011). The total ozone content is
retrieved by Microtops II by using different combinations (Channel I,
305.5/312.5 nm; Channel II, 312.5/320 nm; and Channel III, 305.5/312.5/320 nm)
of the signals at the three ultraviolet wavelengths. The long-term
performance of the total ozone content determination has been studied taking
into account the sensitivities to the calibration, airmass, temperature and
aerosols. When a calibration was used and the airmass limit was fixed to 3,
the root mean square deviations of the relative differences produced by
Microtops II with respect to several Brewers are 0.9, 2, and 2%
respectively for the Channel I, Channel II, and Channel III retrieval. The
performance of the Microtops retrieval has been stable during the last ten
years. Channel I represents the best option to determine the instantaneous
total ozone content. Channels II and III values appear weakly sensitive to
temperature, ozone content, and aerosols. Channel II is more stable than
Channel I for airmasses larger than 2.6. The conclusions do not show any
dependence on latitude and season. |
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