Results 121 to 130 of about 4,523 (241)

Direct Ionosonde Evidence of F‐Layer Disturbances Driven by Intense Lightning Activity at Low Latitudes

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Thunderstorms could cause the irregularities of electron density distributions in the ionosphere by exciting gravity waves and modifying ambient electric field (E‐field). By comparing the DPS‐4D ionosonde observation at 5‐min resolution at Fuke Station in Hainan, China with the lightning detection data, we studied the F‐layer responses to a ...
Zhengwei Cheng, Mao Zhang, Hailiang Huang, Guojun Wang, Zheng Wang, Sheping Shang, Xiao Wang, Maosheng He, Yajun Zhu, Hui Li, Yaoling Zhi, Gaopeng Lu   +11 more
wiley   +1 more source

An auroral westward flow channel (AWFC) and its relationship to field-aligned current, ring current, and plasmapause location determined using multiple spacecraft observations [PDF]

, 2007
An auroral westward flow channel (AWFC) is a latitudinally narrow channel of unstable F-region plasma with intense westward drift in the dusk-to-midnight sector ionosphere.
P. M. E. Décréau, Waters, C. L., Parkinson, M. L., Lucek, E. A., Lester, M., Lucek, E., Wild, J. A., J. A. Wild, Décréau, P. M. E., M. L. Parkinson, M. Lester, C. L. Waters, E. A. Lucek   +12 more
core   +1 more source

Dayside and nightside reconnection rates inferred from IMAGE FUV and Super Dual Auroral Radar Network data [PDF]

, 2006
peer reviewedThe spectrographic imager at 121.8 nm ( SI12) of the far ultraviolet ( FUV) experiment onboard the IMAGE spacecraft produces global images of the Doppler- shifted Lyman alpha emission of the proton aurora.
Hubert, Benoît, Hubert, B., Cowley, S. W. H., Blockx, C., Milan, S. E., Gérard, Jean-Claude, Blockx, Caroline, Gérard, J.-c., Grocott, A.   +8 more
core   +1 more source

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

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  

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

Substorms during the August 10-11 sawtooth event. [PDF]

, 2006
Sawtooth events have been identified at geosynchronous orbit as large-amplitude quasiperiodic (2–4 hour period) modulations of the energetic electron and ion fluxes.
Frank, L. A., Skoug, R., McPherron, R. L., Singer, H. J., Reeves, G. D., Mende, S. B., Immel, T. J., Denton, Michael H., Henderson, M. G., Donovan, E., Sigwarth, J. B., Thomsen, M. F.   +11 more
core  

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

The influence of magnetospheric substorms on SuperDARN radar backscatter [PDF]

, 2008
The SuperDARN ionospheric radar network is a leading tool for investigating the near-Earth space environment. However, reductions in ionospheric backscatter have been reported during magnetospheric substorms.
J. A. Wild (7591442), Wild, James A., Grocott, A., Adrian Grocott (7590026)   +3 more
core