Three principal components describe the spatiotemporal development of mesoscale ionospheric equivalent currents around substorm onsets

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Abstract min interval. Rapid geomagnetic variations at the substorm onset location, which can drive geomagnetically induced currents (GICs) in technological conductor networks, are mainly associated with the oscillations of the WEJ, which may be driven by oscillations of the transition region between dipolar and tail-like field lines in the magnetotail due to the BBF impact. The results contribute to the understanding of substorm physics and to the understanding of processes that drive intense GICs.

Location: Deutsche Nationalbibliothek Frankfurt am Main

Extent: Online-Ressource

Language: Englisch

Bibliographic citation: Three principal components describe the spatiotemporal development of mesoscale ionospheric equivalent currents around substorm onsets ; volume:41 ; number:2 ; year:2023 ; pages:483-510 ; extent:28
Annales geophysicae ; 41, Heft 2 (2023), 483-510 (gesamt 28)

Creator: Juusola, Liisa
Viljanen, Ari
Partamies, Noora
Vanhamäki, Heikki
Kellinsalmi, Mirjam
Walker, Simon

DOI: 10.5194/angeo-41-483-2023

URN: urn:nbn:de:101:1-2023112303310367056437

Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.

Last update: 15.08.2025, 7:39 AM CEST

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Juusola, Liisa
Viljanen, Ari
Partamies, Noora
Vanhamäki, Heikki
Kellinsalmi, Mirjam
Walker, Simon

Other Objects (12)

Three principal components describe the spatiotemporal development of meso-scale ionospheric equivalent currents around substorm onsets

Three principal components describe the spatiotemporal development of meso-scale ionospheric equivalent currents around substorm onsets

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Instantaneous ionospheric global conductance maps during an isolated substorm

EISCAT/CRRES observations: nightside ionospheric ion outflow and oxygen-rich substorm injections

EISCAT/CRRES observations: nightside ionospheric ion outflow and oxygen-rich substorm injections

Auroral precipitation fading before and at substorm onset: ionospheric and geostationary signatures

Auroral precipitation fading before and at substorm onset: ionospheric and geostationary signatures

Modeling of equivalent ionospheric currents from meridian magnetometer chain data

Modeling of equivalent ionospheric currents from meridian magnetometer chain data

Interhemispheric observations of the ionospheric signature of tail reconnection during IMF-northward non-substorm intervals

Interhemispheric observations of the ionospheric signature of tail reconnection during IMF-northward non-substorm intervals

Effect of the solar wind conditions on the ionospheric equivalent current systems

Effect of the solar wind conditions on the ionospheric equivalent current systems

Relation of the auroral substorm to the substorm current wedge

Relation of the auroral substorm to the substorm current wedge

Combined CUTLASS, EISCAT and ESR observations of ionospheric plasma flows at the onset of an isolated substorm

Combined CUTLASS, EISCAT and ESR observations of ionospheric plasma flows at the onset of an isolated substorm

Spatial variations of ionospheric conductivity and radar auroral amplitude in the Eastward electrojet region during pre-substorm conditions

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Spatial variations of ionospheric conductivity and radar auroral amplitude in the Eastward electrojet region during pre-substorm conditions

Mesoscale ionospheric electrodynamics of omega bands determined from ground-based electromagnetic and satellite optical observations

Mesoscale ionospheric electrodynamics of omega bands determined from ground-based electromagnetic and satellite optical observations

Observations of substorm fine structure

Observations of substorm fine structure

Three principal components describe the spatiotemporal development of meso-scale ionospheric equivalent currents around substorm onsets

Three principal components describe the spatiotemporal development of meso-scale ionospheric equivalent currents around substorm onsets

Instantaneous ionospheric global conductance maps during an isolated substorm

Instantaneous ionospheric global conductance maps during an isolated substorm

EISCAT/CRRES observations: nightside ionospheric ion outflow and oxygen-rich substorm injections

EISCAT/CRRES observations: nightside ionospheric ion outflow and oxygen-rich substorm injections

Auroral precipitation fading before and at substorm onset: ionospheric and geostationary signatures

Auroral precipitation fading before and at substorm onset: ionospheric and geostationary signatures

Modeling of equivalent ionospheric currents from meridian magnetometer chain data

Modeling of equivalent ionospheric currents from meridian magnetometer chain data

Interhemispheric observations of the ionospheric signature of tail reconnection during IMF-northward non-substorm intervals

Interhemispheric observations of the ionospheric signature of tail reconnection during IMF-northward non-substorm intervals

Effect of the solar wind conditions on the ionospheric equivalent current systems

Effect of the solar wind conditions on the ionospheric equivalent current systems

Relation of the auroral substorm to the substorm current wedge

Relation of the auroral substorm to the substorm current wedge

Combined CUTLASS, EISCAT and ESR observations of ionospheric plasma flows at the onset of an isolated substorm

Combined CUTLASS, EISCAT and ESR observations of ionospheric plasma flows at the onset of an isolated substorm

Spatial variations of ionospheric conductivity and radar auroral amplitude in the Eastward electrojet region during pre-substorm conditions

Aufsatz

Spatial variations of ionospheric conductivity and radar auroral amplitude in the Eastward electrojet region during pre-substorm conditions

Mesoscale ionospheric electrodynamics of omega bands determined from ground-based electromagnetic and satellite optical observations

Mesoscale ionospheric electrodynamics of omega bands determined from ground-based electromagnetic and satellite optical observations

Observations of substorm fine structure

Observations of substorm fine structure

Three principal components describe the spatiotemporal development of meso-scale ionospheric equivalent currents around substorm onsets

Three principal components describe the spatiotemporal development of meso-scale ionospheric equivalent currents around substorm onsets

Instantaneous ionospheric global conductance maps during an isolated substorm

Instantaneous ionospheric global conductance maps during an isolated substorm

EISCAT/CRRES observations: nightside ionospheric ion outflow and oxygen-rich substorm injections

EISCAT/CRRES observations: nightside ionospheric ion outflow and oxygen-rich substorm injections

Auroral precipitation fading before and at substorm onset: ionospheric and geostationary signatures

Auroral precipitation fading before and at substorm onset: ionospheric and geostationary signatures

Modeling of equivalent ionospheric currents from meridian magnetometer chain data

Modeling of equivalent ionospheric currents from meridian magnetometer chain data

Interhemispheric observations of the ionospheric signature of tail reconnection during IMF-northward non-substorm intervals

Interhemispheric observations of the ionospheric signature of tail reconnection during IMF-northward non-substorm intervals

Effect of the solar wind conditions on the ionospheric equivalent current systems

Effect of the solar wind conditions on the ionospheric equivalent current systems

Relation of the auroral substorm to the substorm current wedge

Relation of the auroral substorm to the substorm current wedge

Combined CUTLASS, EISCAT and ESR observations of ionospheric plasma flows at the onset of an isolated substorm

Combined CUTLASS, EISCAT and ESR observations of ionospheric plasma flows at the onset of an isolated substorm

Spatial variations of ionospheric conductivity and radar auroral amplitude in the Eastward electrojet region during pre-substorm conditions

Aufsatz

Spatial variations of ionospheric conductivity and radar auroral amplitude in the Eastward electrojet region during pre-substorm conditions

Mesoscale ionospheric electrodynamics of omega bands determined from ground-based electromagnetic and satellite optical observations

Mesoscale ionospheric electrodynamics of omega bands determined from ground-based electromagnetic and satellite optical observations

Observations of substorm fine structure

Observations of substorm fine structure

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