Balloon observations of stratospheric electricity above the South Pole - Vertical electric field, conductivity, and conduction current

Details Balloon observations of stratospheric electricity above the South Pole - Vertical electric field, conductivity, and conduction current Balloon observations of stratospheric electricity above the South Pole - Vertical electric field, conductivity, and conduction current

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jatp...53..859b&link_type=abstract

Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 53, Sept. 1991, p. 859-868. Research supported by Texas Ad

Mathematics

Logic

11

Antarctic Regions, Atmospheric Conductivity, Atmospheric Electricity, Meteorological Balloons, Meteorology, Stratosphere, Diurnal Variations, Electric Current, Electric Fields

Scientific paper

Results are summarized of measurements of the electrical conductivity and vertical component of the vector electric field acquired from eight stratospheric balloon flights launched from the South Pole in the austral summer of 1985-1986. The data are a contribution to the set of global atmospheric electricity measurements and extend the work of Cobb (1977) to determine the electrical environment of the south polar region. The average vertical profile of the conductivity at the South Pole, when compared with profiles obtained at other Antarctic locations, suggests that the conductivity scale height may increase with increasing geomagnetic latitude across the polar cap. The conductivity profiles measured at the South Pole and other Antarctic locations differ significantly from polar cap model profiles. On the basis of these measurements, the model profiles appear to require modification. The magnitudes of the electric field profiles were observed to vary from day to day by a factor of over 2.

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