Title :
Studies of dynamic characteristics of atmospheric planetary waves during stratospheric warmings 2006–2013
Author :
Tolstikov, M.V. ; Medvedev, Andrei V. ; Ratovsky, K.G. ; Medvedeva, I.V.
Author_Institution :
Inst. of Solar-Terrestrial Phys., Irkutsk, Russia
Abstract :
Shown that the temperature disturbances, propagated during stratospheric warmings, are result of interference of at least two waves. Two-wave interference model of stratospheric warming was developed. Characteristics of planetary waves, for warmings 2006-2013 were obtained by using this model. Periods of disturbances vary from 5 to 45 days. Vertical wave numbers range is 20-150 km. Amplitudes and horizontal wave numbers obtained by the two-wave models, vary smoothly in space and time, forming vorticity-like structure. On the basis of regular, continuous observations from the Irkutsk ionosonde DSP-4, was shown that number of traveling ionospheric disturbances tend to increase during stratospheric warmings. Comparing of planetary waves characteristics for warmings 2006-2013 was done.
Keywords :
atmospheric movements; atmospheric temperature; atmospheric waves; ionospheric disturbances; stratosphere; AD 2006 to 2013; DSP-4; Irkutsk ionosonde continuous observation; atmospheric planetary wave dynamic characteristic; horizontal wave number; stratospheric warming; temperature disturbance; traveling ionospheric disturbance number; two-wave interference model; two-wave model; vertical wave number range; vorticity-like structure; wave interference; Atmospheric modeling; Atmospheric waves; Correlation; Interference; Ocean waves; Temperature; Terrestrial atmosphere;
Conference_Titel :
General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI
Conference_Location :
Beijing
DOI :
10.1109/URSIGASS.2014.6929752
