Assessment of the quality of ACE-FTS stratospheric ozone data
| العنوان: | Assessment of the quality of ACE-FTS stratospheric ozone data |
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| المؤلفون: | Sheese, Patrick E., Walker, Kaley A., Boone, Chris D., Bourassa, Adam E., Degenstein, Doug A., Froidevaux, Lucien, McElroy, C. Thomas, Murtagh, Donal, 1959, Iii, James M. Russell, Zou, Jiansheng |
| المصدر: | Atmospheric Measurement Techniques. 15(5):1233-1249 |
| الوصف: | For the past 17 years, the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) instrument on the Canadian SCISAT satellite has been measuring profiles of atmospheric ozone. The latest operational versions of the level 2 ozone data are versions 3.6 and 4.1. This study characterizes how both products compare with correlative data from other limb-sounding satellite instruments, namely MAESTRO, MLS, OSIRIS, SABER, and SMR. In general, v3.6, with respect to the other instruments, exhibits a smaller bias (which is on the order of similar to 3 %) in the middle stratosphere than v4.1 (similar to 2 %-9 %); however, the bias exhibited in the v4.1 data tends to be more stable, i.e. not changing significantly over time in any altitude region. In the lower stratosphere, v3.6 has a positive bias of about 3 %-5 % that is stable to within +/- 1 % per decade, and v4.1 has a bias on the order of -1 % to +5 % and is also stable to within +/- 1 % per decade. In the middle stratosphere, v3.6 has a positive bias of similar to 3 % with a significant negative drift on the order of 0.5 %-2.5 % per decade, and v4.1 has a positive bias of 2 %-9 % that is stable to within +/- 0.5 % per decade. In the upper stratosphere, v3.6 has a positive bias that increases with altitude up to similar to 16 % and a significant negative drift on the order of 2 %-3 % per decade, and v4.1 has a positive bias that increases with altitude up to similar to 15 % and is stable to within +/- 1 % per decade. Estimates indicate that both versions 3.6 and 4.1 have precision values on the order of 0.1-0.2 ppmv below 20 km and above 45 km (similar to 5 %-10 %, depending on altitude). Between 20 and 45 km, the estimated v3.6 precision of similar to 4 %-6 % is better than the estimated v4.1 precision of similar to 6 %-10 %. |
| وصف الملف: | electronic |
| URL الوصول: | https://research.chalmers.se/publication/529210 https://research.chalmers.se/publication/529210/file/529210_Fulltext.pdf |
| قاعدة البيانات: | SwePub |
| تدمد: | 18671381 18678548 |
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| DOI: | 10.5194/amt-15-1233-2022 |