On the connection between the atmospheric electric field measured at the surface and the ionospheric electric field in the Central Antarctica

Details On the connection between the atmospheric electric field measured at the surface and the ionospheric electric field in the Central Antarctica On the connection between the atmospheric electric field measured at the surface and the ionospheric electric field in the Central Antarctica

Apr 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010jastp..72..419f&link_type=abstract

Journal of Atmospheric and Solar-Terrestrial Physics, Volume 72, Issue 5-6, p. 419-424.

Physics

1

Atmospheric Electricity, Central Antarctica, Polar Ionosphere, Global Electric Circuit

Scientific paper

Regular measurements of the atmospheric electric field made at Vostok Station ([phi]=78.45°S; [lambda]=106.87°E, elevation 3500 m) in Antarctica demonstrate that extremely intense electric fields (1000-5000 V/m) can be observed during snow storms. Usually the measured value of the atmospheric electric field at Vostok is about 100-250 V/m during periods with "fair weather" conditions. Actual relation between near-surface electric fields and ionospheric electric fields remain to be a controversial problem. Some people claimed that these intense electric fields produced by snowstorms or appearing before strong earthquakes can re-distribute electric potential in the ionosphere at the heights up to 300 km. We investigated interrelation between the atmospheric and ionospheric electric fields by both experimental and theoretical methods. Our conclusion is that increased near-surface atmospheric electric fields do not contribute notably to distribution of ionospheric electric potential.

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