Results 1 to 10 of about 7,217 (205)

Low Frequency Oscillation Observed in the Ionosphere Around the Substorm Onsets

Geophysical Research Letters
Three substorm events in which Defense Meteorological Satellite Program (DMSP) spacecraft are geomagnetically co‐located with substorm onset locations in IMAGE far ultraviolet auroral images are analyzed.
Simon Wing, Jay R. Johnson, Elmer C. Rivera, Arthur J. Hull, Peter Damiano   +4 more
doaj   +1 more source

Dynamics for geomagnetic pulsations, field-aligned currents, and airglow at mid-latitudes within substorm activations during superstorms

Геодинамика и тектонофизика, 2019
Within substorm activations during two superstorms (2000 and 2003) from the observations at mid-latitude geomagnetic observatories, we study short-period irregular geomagnetic pulsations and airglow in the 557.7 nm and 630.0 nm atomic oxygen emission ...
Yu. Yu. Klibanova, V. V. Mishin, A. V. Mikhalev, B. Tsegmed, Yu. A. Karavaev, M. A. Kurikalova   +5 more
doaj   +1 more source

A Tailored Deep Learning Network with Embedded Space Physical Knowledge for Auroral Substorm Recognition: Validation Through Special Case Studies

Universe
The dynamic morphological characteristics of the auroral oval serve as critical diagnostic indicators for auroral substorm recognition, with each pixel in ultraviolet imager (UVI) data carrying different physical implications.
Yiyuan Han, Bing Han, Zejun Hu
doaj   +1 more source

Estimation of the contributions of conductance and electric field to the intensity of field-aligned currents in the night polar ionosphere during substorm expansion phase

Геодинамика и тектонофизика, 2019
Based on the output data of the magnetogram inversion technique, we analyze the dynamics of the Pedersen ionospheric currents and field-aligned currents (FACs) in the night mesoscale cells of the three main large-scale Iijima and Potemra Regions (R1, R2 ...
V. V. Mishin, S. B. Lunyushkin, V. M. Mishin, M. A. Kurikalova, Yu. V. Penskikh   +4 more
doaj   +1 more source

Distribution of Region 1 and 2 currents in the quiet and substorm time plasma sheet from THEMIS observations

Geophysical Research Letters, 2016
Although Earth's Region 1 and 2 currents are related to activities such as substorm initiation, their magnetospheric origin remains unclear. Utilizing the triangular configuration of THEMIS probes at 8–12 RE downtail, we seek the origin of nightside ...
Jiang Liu, V. Angelopoulos, Xiangning Chu, R. L. McPherron   +3 more
doaj   +1 more source

The high latitude convection response to an interval of substorm activity

Annales Geophysicae
On 17 March 1991, five clear substorm onsets/intensifications took place within a three hour interval. During this interval ground-based data from the EISCAT incoherent scatter radar, a digital CCD all sky camera, and an extensive array of magnetometers ...
T. K. Yeoman, M. Pinnock
doaj  

A Perspective on Substorm Dynamics Using 10 Years of Auroral Kilometric Radiation Observations From Wind. [PDF]

J Geophys Res Space Phys, 2022
Waters JE, Jackman CM, Whiter DK, Forsyth C, Fogg AR, Lamy L, Cecconi B, Bonnin X, Issautier K.   +8 more
europepmc   +1 more source

Automated Detection Algorithm for Mesoscale Heated Regions in TWINS Ion Temperature Maps. [PDF]

J Geophys Res Space Phys, 2022
Keesee AM, Katus R, Tibbetts J, Liu J, Zhang X, Sorathia KA.   +5 more
europepmc   +1 more source

New Insights Into the Substorm Initiation Sequence From the Spatio-Temporal Development of Auroral Electrojets. [PDF]

J Geophys Res Space Phys, 2022
Ohtani S, Motoba T, Gjerloev JW, Frey HU, Mann IR, Chi PJ, Korth H.   +6 more
europepmc   +1 more source

Unveiling the combined effects of neutral dynamics and electrodynamic forcing on dayside ionosphere during the 3-4 February 2022 "SpaceX" geomagnetic storms. [PDF]

Sci Rep, 2023
Kakoti G, Bagiya MS, Laskar FI, Lin D.
europepmc   +1 more source