Articles | Volume 17, issue 11
https://doi.org/10.5194/acp-17-6813-2017
https://doi.org/10.5194/acp-17-6813-2017
Research article
 | 
12 Jun 2017
Research article |  | 12 Jun 2017

Response of trace gases to the disrupted 2015–2016 quasi-biennial oscillation

Olga V. Tweedy, Natalya A. Kramarova, Susan E. Strahan, Paul A. Newman, Lawrence Coy, William J. Randel, Mijeong Park, Darryn W. Waugh, and Stacey M. Frith

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Cited articles

Andrews, D. G., Holton, J. R., and Leovy, C. B.: Middle atmosphere dynamics, 40, Academic press, 1987.
Angell, J. K. and Korshover, J.: Quasi-biennial variations in temperature, total ozone, and tropopause height, J. Atmos. Sci., 21, 479–492, 1964.
Bosilovich, M. G., Akella, S., Coy, L., Cullather, R., Draper, C., Gelaro, R., Kovach, R., Liu, Q., Molod, A., Norris, P., and Wargan, K.: MERRA-2: Initial evaluation of the climate, Series on Global Modeling and Data Assimilation, NASA/TM, 2015;104606, 2015.
Caldwell, M., Teramura, A. H., Tevini, M., Bornman, J., Björn, L. O., and Kulandaivelu, G.: Effects of increased solar ultraviolet-radiation on terrestrial plants, Ambio, 24, 166–173, 1995.
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In this study we examined the impact of unprecedented disruption in the wind pattern (the quasi-biennial oscillation, or QBO) in the tropical stratosphere (16–48 km above the ground) on chemicals very important to the stratospheric climate such as ozone (O3). During the 2016 boreal summer, total O3 is lower in the extratropics than during previous QBO cycles due to lifting forced from the disruption. This decrease in O3 led to the increase in surface UV index by 8.5 % compared to the 36 yr mean.
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