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www.atmos-meas-tech-discuss.net/4/7529/2011/
doi:10.5194/amtd-4-7529-2011
© Author(s) 2011. This work is distributed
under the Creative Commons Attribution 3.0 License.
Operational considerations to improve total ozone measurements with a Microtops II ozone monitor
1Departament de Física de la Terra i Termodinàmica, University of Valencia, Spain
2Laboratory for Earth Observations and Analyses (UTMEA-TER), ENEA, Rome, Italy
4Artic Research Centre, Finnish Meteorological Institute (FMI-ARC), Sodankylä, Finland
5Estación de Sondeos Atmosféricos "El Arenosillo", INTA, Huelva, Spain
*formerly at: Agencia Estatal de Meteorología, AEMET, Madrid, Spain
†deceased
Abstract. 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. When a calibration was used and the airmass limit was fixed to 3, Microtops II produce mean relative deviations with respect to the Brewer of 0.1, −11, and 8% 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. Channel 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.
Discussion Paper (PDF, 3641 KB) Interactive Discussion (Closed, 7 Comments) Final Revised Paper (AMT)
Notice on Discussion StatusCitation: Gómez-Amo, J. L., Estellés, V., di Sarra, A., Pedrós, R., Utrillas, M. P., Martínez- Lozano, J. A., González-Frias, C., Kyrö, E., and Vilaplana, J. M.: Operational considerations to improve total ozone measurements with a Microtops II ozone monitor, Atmos. Meas. Tech. Discuss., 4, 7529-7558, doi:10.5194/amtd-4-7529-2011, 2011. Bibtex EndNote Reference Manager XML
