Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 33, issue 3
Articles | Volume 33, issue 3
https://doi.org/10.5194/angeo-33-371-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/angeo-33-371-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 33, issue 3
Regular paper
 | 
20 Mar 2015
Regular paper |  | 20 Mar 2015

Observation of electron biteout regions below sporadic E layers at polar latitudes

G. A. Lehmacher, M. F. Larsen, and C. L. Croskey

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Short summary
The descent of a sporadic E layer near 95km was observed with two rockets during a geomagnetically very quiet period. Four wind profiles showed that the location was surprisingly consistent with the neutral wind shear and a small electric field. Both electron probes found deep depletions just below the layers, which could be due to charged mesospheric smoke particles. Those have recently been detected in the mesosphere, but not yet in immediate connection with sporadic E.
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