Калининград, Россия
Западное отделение ИЗМИРАН
Калининград, Россия
Калининград, Россия
We present results of modeling of the effect of internal gravity waves (IGW), excited in the region of development of a sudden stratospheric warming (SSW), on upper atmospheric conditions. In the numerical experiment, we use a two-dimensional model of propagation of atmospheric waves, taking into account dissipative and nonlinear processes accompanying wave propagation. As a source of disturbances we consider temperature and density disturbances in the stratosphere during SSWs. Amplitude and frequency characteristics of the source of disturbances are estimated from observations and IGW theory. Numerical calculations showed that waves generated at stratospheric heights during SSW can cause temperature changes in the upper atmosphere. Maximum relative disturbances, caused by such waves, with respect to quiet conditions are observed at 100–200 km. Disturbances of the upper atmosphere in turn have an effect on the dynamics of charged component in the ionosphere and can contribute to observable ionospheric effects of SSW.
Internal gravity waves, Sudden stratospheric warmings, Modeling
1. Grigoriev G.I. Acoustic-gravity waves in the Earth´s atmosphere (review). Izvestiya Vuzov. Radiophysics [Radio Physics and Quantum Electronics] 1999, vol. XLII, no. 1, pp. 3-25. (In Russian).
2. Harada Y., Goto A., Hasegawa H., Fujikawa N. A major stratospheric sudden warming event in January 2009. J. Atm. Sci. 2010, vol. 67, pp. 2052-2069. DOI:https://doi.org/10.1175/2009JAS3320.1.
3. Jin H., Miyoshi Y., Pancheva D., Mukhtarov P., Fujiwara H., Shinagawa H. Response of migrating tides to the stratospheric sudden warming in 2009 and their effects on the ionosphere studied by a whole atmosphere-ionosphere model GAIA with COSMIC and TIMED/SABER observations. J. Geophys. Res. 2012, vol. 117, A10323. DOI:https://doi.org/10.1029/2012JA017650.
4. Karpov I.V., Kshevetskii S.P. Mechanism of formation of large-scale disturbances in the upper atmosphere by acoustic gravity wave sources on the Earth’s surface. Geomagnetizm i Aeronomiya [Geomagnetism and Aeronomy]. 2014, vol. 54, no. 4, pp. 553-562. (In Russian).
5. Kshevetskii S.P. Modeling of propagation of internal gravity waves in gases. Computational Mathematics and Mathematical Physics. 2001, vol. 41, no 2. pp. 273-288.
6. Kurkin V.I., Chernigovskaya M.A., Marychev V.N., Nikolashkin S.V., Bychkov V.V. Effects of winter sudden stratospheric warmings over Siberia and Russian Far East in 2008-2010 according to lidar and satellite measurements of temperature. Solnechno-Zemnaya Fizika [Solar-Terrestrial Physics]. 2011, vol. 17, pp. 166-173. (In Russian).
7. Labitzke K., Kunze M. On the remarkable Arctic winter 2008/2009. J. Geophys. Res. 2009, vol. 114, no. D00I02. DOI:https://doi.org/10.1029/2009JD012273.
8. Pancheva D., Mukhtarov P., Stratospheric warmings: The atmosphere-ionosphere coupling paradigm. J. Atmos. Solar-Terr. Phys. 2011, vol. 73, pp. 1697-1702.
9. Picone J.M., Hedin A.E., Drob D.P., Aikin A.C., NRLMSISE-00 empirical model of the atmosphere: Statistical comparisons and scientific issues. J. Geophys. Res. 2002, vol. 107, no. A12, pp. 1468-1483. DOI: 10.1029/ 2002JA009430.
10. Polyakova A.S., Chernigovskaya M.A., Perevalova N.P. Ionospheric effects of sudden stratospheric warmings in Eastern Siberia region. J. Atmos. Solar-Terr. Phys, 2014, vol. 120, pp. 15-23.
11. Shpynev B.G., Pancheva D., Mukhtarov P., Kurkin V.I. Ratovsky K.G., Chernigovskaya M.A., Belinskaya A.Yu., Stepanov A.E. Ionosphere response over Eastern Siberia during the 2009 sudden stratospheric warming from data of ground-based and satellite radio sounding. Sovremennye Problemy Distantsionnogo Zondirovaniya Zemli iz Kosmosa [Current problems in remote sensing of the earth from space]. 2013, vol. 10, no 1, pp. 153-163. (In Russian).
12. Sumod S.G., Pant T.K., Lijo J., Hossain M.M., Kumar K.K. Signatures of sudden stratospheric warming on the equatorial ionosphere-thermosphere system. Planetary and Space Sci. 2012, vol. 63-64, pp. 49-55.
13. Wang L., Alexander M.J. Gravity wave activity during stratospheric sudden warmings in the 2007-2008 Northern Hemisphere winter. J. Geophys. Res. 2009, vol. 114, no. D18108. DOI:https://doi.org/10.1029/2009JD011867.
