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Index Geophysics

Bursts of irregular magnetic pulsations during the substorm


Title (Dublin Core)

en-US Bursts of irregular magnetic pulsations during the substorm

Description (Dublin Core)

en-US New characteristics of PiB magnetic pulsations which are associated with the substorm in the local midnight sector are revealed from the recordings of a meridional network of ground stations. PiB's are observed during distortions of the auroral arc which enclose a local region of upward directed field-aligned current. An enhancement at about 0.3–0.4 Hz is shown to be a permanent feature of PiB's. In addition, a secondary amplitude maximum at about 1 Hz sometimes appears in the recordings far from the auroral zone. The generation of PiB pulsations in the Pi1 period range is located at auroral latitudes at a low altitude. Low-altitude electric fields and acceleration of auroral particles, low-altitude resonance cavities, and isotropic propagation of waves is discussed in the interpretation of PiB pulsations.

Creator (Dublin Core)

Kangas, J.
Pikkarainen, T.
Golikov, Yu.
Baransky, L.
Troitskaya, V.A.
Sterlikova, V.

Subject (Dublin Core)

en-US Magnetospheric substorm
en-US PiB magnetic pulsations
en-US Atmosphere

Publisher (Dublin Core)

en-US Journal of Geophysics

Date (Dublin Core)


Type (Dublin Core)

en-US Peer-reviewed Article

Format (Dublin Core)


Identifier (Dublin Core)

Source (Dublin Core)

en-US Journal of Geophysics; Vol 46 No 1 (1979): Journal of Geophysics; 237-247

Language (Dublin Core)


Relation (Dublin Core)