Trend and variability in ozone in the tropical lower stratosphere over 2.5 solar cycles observed by SAGE II and OSIRIS
Author:
Sioris C. E., McLinden C. A.ORCID, Fioletov V. E.ORCID, Adams C., Zawodny J. M., Bourassa A. E., Degenstein D. A.
Abstract
Abstract. We are able to replicate previously reported decadal trends in the tropical lower stratospheric ozone anomaly based on Stratospheric Aerosol and Gas Experiment II observations. We have extended the satellite-based ozone anomaly time series to the present (December 2012) by merging SAGE II with OSIRIS (Optical Spectrograph and Infrared Imager System) and correcting for the small bias (~0.5%) between them, determined using their temporal overlap of 4 yr. Analysis of the merged dataset (1984–2012) shows a statistically significant negative trend at all altitudes in the 18–25 km range reaching (−6.5 ± 1.8)% decade−1 at 18.5 km, with underlying strong variations due to El Niño–Southern Oscillation, the Quasi–Biennial Oscillation, and tropopause height.
Publisher
Copernicus GmbH
Reference50 articles.
1. Adams, C., Bourassa, A. E., Bathgate, A. F., McLinden, C. A., Lloyd, N. D., Roth, C. Z., Llewellyn, E. J., Zawodny, J. M., Flittner, D. E., Manney, G. L., Daffer, W. H., and Degenstein, D. A.: Characterization of Odin-OSIRIS ozone profiles with the SAGE II dataset, Atmos. Meas. Tech., 6, 1447–1459, https://doi.org/10.5194/amt-6-1447-2013, 2013a. 2. Adams, C., Bourassa, A. E., Sofieva, V., Froidevaux, L., McLinden, C. A., Hubert, D., Lambert, J. -C., Sioris, C. E., and Degenstein, D. A.: Assessment of Odin-OSIRIS ozone measurements from 2001 to the present using MLS, GOMOS, and ozone sondes, Atmos. Meas. Tech. Discuss., 6, 3819–3857, https://doi.org/10.5194/amtd-6-3819-2013, 2013b. 3. Bodeker, G. E., Boyd, I. S., and Matthews, W. A.: Trends and variability in vertical ozone and temperature profiles measured by ozonesondes at Lauder, New Zealand: 1986–1996,~J. Geophys. Res., 103, 28661–28681, 1998. 4. Bodeker, G. E., Hassler, B., Young, P. J., and Portmann, R. W.: A vertically resolved, global, gap-free ozone database for assessing or constraining global climate model simulations, Earth Syst. Sci. Data, 5, 31–43, https://doi.org/10.5194/essd-5-31-2013, 2013. 5. Bourassa, A. E., Rieger, L. A., Lloyd, N. D., and Degenstein, D. A.: Odin-OSIRIS stratospheric aerosol data product and SAGE III intercomparison, Atmos. Chem. Phys., 12, 605–614, https://doi.org/10.5194/acp-12-605-2012, 2012.
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|