Formation of the spectrum of Pc1-2 and PDP geomagnetic pulsations during substorm development

Details Formation of the spectrum of Pc1-2 and PDP geomagnetic pulsations during substorm development Formation of the spectrum of Pc1-2 and PDP geomagnetic pulsations during substorm development

Feb 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987ge%26ae..27..115b&link_type=abstract

Geomagnetizm i Aeronomiia (ISSN 0016-7940), vol. 27, Jan.-Feb. 1987, p. 115-121. In Russian.

Physics

Geomagnetic Pulsations, Magnetic Storms, Polar Substorms, Atmospheric Models, Auroral Zones, Plasma Drift, Temporal Distribution

Scientific paper

Data from a chain of stations at a longitude of 120 deg are used to study the properties of Pc1-2 and PDP pulsations during a substorm with allowance for its phases and fine structure. A model for the excitation of the pulsations is proposed according to which the transition of Pc1-2 pulsations to PDP pulsations is correlated with the expansion of the auroral activation region toward the evening sector and the radial drift of the region of ion-cyclotron instability (responsible for the Pc1-2 pulsation) toward the earth.

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