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Title: Diffuse spreading of inhomogeneities in the ionospheric dusty plasma

According to results of sounding of the lower ionosphere at altitudes of about 100 km, the duration of radio reflections from sufficiently dense ionized meteor trails, which characterizes their lifetime, can reach a few tens of seconds to several tens of minutes. This is much longer than the characteristic spreading time (on the order of fractions of a second to several seconds) typical in meteor radar measurements. The presence of dust in the lower ionosphere is shown to affect the ambipolar diffusion coefficient, which determines the spreading of plasma inhomogeneities. It is found that the diffusion coefficient depends substantially on the charge and size of dust grains, which allows one to explain the results of ionospheric sounding.
Authors:
 [1] ;  [2]
  1. Russian Academy of Sciences, Schmidt Institute of Physics of the Earth (Russian Federation)
  2. Sodankylä Geophysical Observatory (Finland)
Publication Date:
OSTI Identifier:
22472208
Resource Type:
Journal Article
Resource Relation:
Journal Name: Plasma Physics Reports; Journal Volume: 41; Journal Issue: 8; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AMBIPOLAR DIFFUSION; DUSTS; INHOMOGENEOUS PLASMA; IONOSPHERE; LIFETIME; METEOROIDS; RADAR; RADIOWAVE RADIATION; REFLECTION; SOUND WAVES