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Operational considerations to improve total ozone measurements with a Microtops II ozone monitor

机译：使用Microtops II臭氧监测仪改善总臭氧测量的操作注意事项

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摘要

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 outin several geographic locations and seasons, covering latitudes from 35 to68° N during the last ten years (2001–2011). The total ozone content isretrieved 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-termperformance of the total ozone content determination has been studied takinginto account the sensitivities to the calibration, airmass, temperature andaerosols. When a calibration was used and the airmass limit was fixed to 3,the root mean square deviations of the relative differences produced byMicrotops II with respect to several Brewers are 0.9, 2, and 2%respectively for the Channel I, Channel II, and Channel III retrieval. Theperformance of the Microtops retrieval has been stable during the last tenyears. Channel I represents the best option to determine the instantaneoustotal ozone content. Channels II and III values appear weakly sensitive totemperature, ozone content, and aerosols. Channel II is more stable thanChannel I for airmasses larger than 2.6. The conclusions do not show anydependence on latitude and season.
机译：在过去的十年中（2001年至2004年），在几个地理位置和季节进行的六次实验中，常规使用了具有305.5、312.5和320 nm紫外线通道的Microtops II“臭氧监测仪” 2011）。 Microtops II通过使用三种紫外线波长下信号的不同组合（通道I，305.5 / 312.5 nm;通道II，312.5 / 320 nm;通道III，305.5 / 312.5 / 320 nm）来回收总臭氧含量。考虑到对标定，空气质量，温度和气溶胶的敏感性，研究了总臭氧含量测定的长期性能。当使用校准并将空气质量极限固定为3时，对于通道I，通道II和通道，Microtops II相对于多个Brewer产生的相对差异的均方根偏差分别为0.9％，2％和2％ III检索。在最近十年中，Microtops检索的性能一直稳定。通道I是确定瞬时总臭氧含量的最佳选择。通道II和III的值似乎对温度，臭氧含量和气溶胶不敏感。对于大于2.6的气团，通道II比通道I更稳定。结论不表示与纬度和季节有关。

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