Observation of a summer tropopause fold by ozonesonde at Changchun, China: Comparison with reanalysis and model simulation
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Tropopause folds are one of the key mechanisms of stratosphere–troposphere exchange (STE) in extratropical regions, transporting ozone-rich stratospheric air into the middle and lower troposphere. Although there have been many studies of tropopause folds that have occurred over Europe and North America, a very limited amount of work has been carried out over northeastern Asia. Ozonesondes produced by the Institute of Atmospheric Physics were launched in Changchun (43.9°N, 125.2°E), Northeast China, in June 2013, and observed an ozone-enriched layer with thickness of 3 km and an ozone peak of 180 ppbv at 6 km in the troposphere. The circulation field from the European Centre for Medium-Range Weather Forecasts Interim Reanalysis (ERA-Interim) dataset shows that this ozone peak was caused by a tropopause fold associated with a jet stream at the eastern flank of the East Asian trough. By analyzing the ozone data from the ozone monitoring instrument and Weather Research and Forecasting model with Chemistry (WRF-Chem) simulations, it was found that a high ozone concentration tongue originating from the lower stratosphere at high latitude (near central Siberia) intruded into the middle troposphere over Changchun between 5 and 8 km on 12 June 2013. The high-resolution WRF-Chem simulation was capable of describing events such as the tropopause fold that occurred on the cyclonic shear side of the jet stream. In addition, the TRAJ3D trajectory model was used to trace the origin of measured secondary ozone peaks in the middle troposphere back, for example, to stratospheric intrusion through the tropopause fold.
Key wordstropopause fold ozonesonde WRF-Chem model stratospheric intrusion
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- Balis, D., M. Kroon, M. E. Koukouli, E. J. Brinksma, G. Labow, J. P. Veefkind, and R. D. McPeters, 2007: Validation of Ozone Monitoring Instrument total ozone column measurements using Brewer and Dobson spectrophotometer ground-based observations. J. Geophys. Res., 112, D24S46, doi: 10.1029/2007JD008796.
- Baray, J.-L., V. Duflot, F. Posny, J.-P. Cammas, A. M. Thompson, F. Gabarrot, J. L. Bonne, and G. Zeng, 2012: One year ozonesonde measurements at Kerguelen Island (49.2°S, 70.1°E): Influence of stratosphere-to-troposphere exchange and long-range transport of biomass burning plumes. J. Geophys. Res., 117, D06305, doi: 10.1029/2011JD016717.
- Beuermann, J., P. Konopka, D. Brunner, O. Bujok, G. Günther, D. S. McKenna, J. Lelieveld, R. Müller, and C. Schiller, 2002: High-resolution measurements and simulation of stratospheric and tropospheric intrusions in the vicinity of the polar jet stream. Geophys. Res. Lett., 29, 18-1–18-4, doi: 10.1029/2001GL014162.
- Danielsen, E. F., 1968: Project Springfield Report. DASA 1517, Defence Atomic Support Agency, Washington D. C. 97 pp.Google Scholar
- Fischer, H., M. de Reus, M. Traub, J. Williams, J. Lelieveld, J. de Gouw, C. Warneke, H. Schlager, A. Minikin, R. Scheele, and P. Siegmund, 2000: Tracer correlations in the northern high-latitude lowermost stratosphere: Influence of crosstropopause mass exchange. Geophys. Res. Lett., 27, 97–100.CrossRefGoogle Scholar
- Grell, G. A., and D. Dévényi, 2002: A generalized approach to parameterizing convection combining ensemble and data assimilation techniques. Geophys. Res. Lett., 29(14), 38-1–38-4, doi: 10.1029/2002GL015311.
- Pan, L. L., K. P. Bowman, M. Shapiro, W. J. Randel, R. S. Gao, T. Campos, C. Davis, S. Schauffler, B. A. Ridley, J. C. Wei, and C. Barnet, 2007: Chemical behavior of the tropopause observed during the stratosphere-troposphere analyses of regional transport experiment. J. Geophys. Res., 112, D18110, doi: 10.1029/2007JD008645.
- Pan, L. L., W. J. Randel, B. L. Gary, M. J. Mahoney, and E. J. Hintsa, 2004: Definitions and sharpness of the extratropical tropopause: A trace gas perspective. J. Geophys. Res., 109, D23103, doi: 10.1029/2004JD004982.
- Randel, W. J., D. J. Seidel, and L. L. Pan, 2007: Observational characteristics of double tropopauses. J. Geophys. Res., 112, D07309, doi: 10.1029/2006JD007904.
- Reed, R. J., 1955: A study of a characteristic type of upper-level frontogenesis. J. Atmos. Sci., 12, 226–237.Google Scholar
- Stockwell, W. R., P. Middleton, J. S. Chang, and X. Y. Tang, 1990: The second generation regional acid deposition model chemical mechanism for regional air quality modeling. J. Geophys. Res., 95, 16 343–16 367.Google Scholar
- Trickl, T., N. Bärtsch-Ritter, H. Eisele, M. Furger, R. Mücke, M. Sprenger, and A. Stohl, 2011: High-ozone layers in the middle and upper troposphere above Central Europe: Potential import from the stratosphere along the subtropical jet stream. Atmos. Chem. Phys., 11, 9343–9366, doi: 10.5194/acp-11-9343-2011.CrossRefGoogle Scholar
- Wang, G. C., Q. X. Kong, Y. J. Xuan, X. W. Wan, H. B. Chen, and S. Q. Ma, 2003: Development and application of ozonesonde system in China. Advance in Earth Sciences, 18, 471–475. (in Chinese)Google Scholar
- World Meteorological Organization, 1957: Meteorology–A threedimensional science: Second session of the Commission for Aerology. WMO Bull., 4(4), 134–138.Google Scholar
- Xuan, Y. J., S. Q. Ma, H. B. Chen, G. C. Wang, Q. X. Kong, Q. Zhao, and X.W. Wan, 2004: Intercomparisons of GPSO3 and Vaisala ECC ozonesondes. Plateau Meteorology, 23(3), 394–399. (in Chinese)Google Scholar
- Yang, J., and D. R. Lü, 2003: A simulation study of stratosphere-troposphere exchange due to cut-off-low over Eastern Asia. Chinese J. Atmos. Sci., 27, 1031–1044. (in Chinese)Google Scholar
- Yang, J., and D. R. Lü, 2004: Simulation of stratosphere-troposphere exchange effecting on the distribution of ozone over Eastern Asia. Chinese J. Atmos. Sci., 28, 579–589. (in Chinese)Google Scholar
- Zhang, J. Q., Y. J. Xuan, X. A. Xia, M. Y. Liu, X. L. Yan, L. Pang, Z. X. Bai, and X. W. Wan, 2014a: Performance evaluation of a self-developed ozonesonde and its application in an intensive observational campaign. Atmos. Oceanic Sci. Lett., 7, 175–179, doi: 10.3878/j.issn.1674-2834.13.0089.CrossRefGoogle Scholar