Physics
Scientific paper
Jun 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jatp...43..573o&link_type=abstract
(International Symposium on Equatorial Aeronomy - I, 6th, Aguadilla, PR, July 17-23, 1980.) Journal of Atmospheric and Terrestri
Physics
13
Equatorial Electrojet, Ionospheric Currents, Plasma-Electromagnetic Interaction, Space Plasmas, Current Density, Geomagnetism, Plasma Heating, Plasma Pinch, Pogo, Statistical Correlation, Width
Scientific paper
The relationship between the current and width of an electrojet is studied, and it is found that from a couple of hours before local noon to a couple of hours after local noon, the width of the equatorial electrojet decreases as the peak eastward current intensity increases. It is also found that certain lower limits of intensity and total current appear to be necessary before the constriction of the width begins. An analysis of POGO measurements yielding 500 values of each parameter indicates that the electrojet peak eastward current intensity and total current vary considerably with longitude peaks of 100, 190, and 280 deg E. Correlation coefficients between the half-width and peak eastward current intensity ranging from -0.820 to -0.955 are found for 11, 12, 13, and 14 h LT, but not for 15 h LT when intensity is below the 190 A/km limit. Since self-pinched plasmas are known to be unstable and break up into a series of lumps of plasma, it is suggested that this makes some contribution to the production of equatorial electrojet irregularities.
Agu C. E.
Onwumechili Agedi C.
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