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Engineering Physics Annotation << Back
POWERFUL ATMOSPHERIC VORTICES AT LOW AND HIGH LATITUDES |
N.I. IZHOVKINA, S.N. ARTEKHA, N.S. EROKHIN, L.A. MIKHAILOVSKAYA
At low latitudes, powerful atmospheric whirlwinds, tornadoes, are excited over the ocean. In the high-latitude troposphere for the region of the geomagnetic polar cap, in winter period, the excitation of local cyclonic structures is observed which are accompanied with ice storms, with invasions into middle and even subtropical latitudes. The time of generation of such cyclones is 15…25 hours, which is comparable with the time of excitation of a tornado. The paper shows that the nature of the vortices is magnetohydrodynamic. Energy accumulation of cyclonic structures is associated with moisture condensation in cellular mosaic distributions of aerosol impurities. A large-scale vortex structure is formed and grows during the interaction of plasma vortices and Rossby vortices. In the genesis of vortices, aperiodic electrostatic disturbances of inhomogeneous plasma play an important role.
Key words: aerosol plasma, the geomagnetic field, vortex activity of the atmosphere, tornado, polar winter cyclones, aperiodic disturbances of inhomogeneous plasma.
DOI: 10.25791/infizik.02.2019.482
Contacts: E-mail: izhovn@izmiran.ru, E-mail: sergey.arteha@gmail.com, E-mail: nerokhin@iki.rssi.ru
Pp. 46-54. |
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