Results 61 to 70 of about 4,167 (217)

Traveling Ionospheric Disturbances and Ionospheric Perturbations Associated With Solar Flares in September 2017 [PDF]

Journal of Geophysical Research: Space Physics, 2019
AbstractSolar flares provide strong impulsive radiation and energy injection to the sunlit upper atmosphere. The impact on the ionosphere is immense in spatial scale, and therefore, it is not immediately evident if dramatically elevated neutral heating can lead to excitation of acoustic gravity waves.
Shun‐Rong Zhang, Anthea J. Coster, Philip J. Erickson, Larisa P. Goncharenko, William Rideout, Juha Vierinen   +5 more
openaire   +3 more sources

Wave‐Based Quantification of Ion Composition in the Earth's Magnetosphere‐Ionosphere‐Coupling Region

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Ion composition critically determines the basic kinetic characteristics of plasma and affects energy transmission of the magnetosphere. However, it exhibits significant variations with altitude, latitude, local time, longitude, and also with geomagnetic and solar activity.
Zhijie Qin, Hui Zhu, Zhihai Ouyang, Huicong Chen, Zhenghao She   +4 more
wiley   +1 more source

Towards the azimuthal characteristics of ionospheric and seismic effects of "Chelyabinsk" meteorite fall according to the data from coherent radar, GPS and seismic networks

, 2015
We present the results of a study of the azimuthal characteristics of ionospheric and seismic effects of the meteorite 'Chelyabinsk', based on the data from the network of GPS receivers, coherent decameter radar EKB SuperDARN and network of seismic ...
Bakhtiyarov, V. F., Berngardt, O. I., Dobrynina, A. A., Kusonsky, O. A., Kutelev, K. A., Perevalova, N. P., Shestakov, N. V., Zagretdinov, R. V., Zherebtsov, G. A.   +8 more
core   +1 more source

Large enhancements in low latitude total electron content during 15 May 2005 geomagnetic storm in Indian zone [PDF]

, 2009
Results pertaining to the response of the equatorial and low latitude ionosphere to a major geomagnetic storm that occurred on 15 May 2005 are presented.
N. Dashora, R. Pandey, R. S. Dabas, S. Alex, S. Sharma   +4 more
core   +2 more sources

Sudden Ionospheric Disturbances Generated by Solar Flares—Not so Sudden?

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract It is known that solar flares generate instantaneous ionization enhancement, referred to as sudden ionospheric disturbance (SID), that occurs simultaneously across the entire dayside. In this work, we use high‐rate 1‐s data of total electron content (TEC) to analyse ionospheric response to 13 solar flares that occurred in 2003–2023.
B. Maletckii, E. Astafyeva, N. M. Pedatella, L. Qian   +3 more
wiley   +1 more source

IonKit-NH: A MATLAB-based toolkit for ionospheric detection of earthquake, tsunami and volcanic eruption

Earthquake Research Advances
In recent years, GNSS-derived total electron content (TEC) measurements have emerged as an effective method for detecting natural hazards through their ionospheric manifestations.
Long Tang
doaj   +1 more source

Probing Fine-Scale Ionospheric Structure with the Very Large Array Radio Telescope

, 2009
High resolution (~1 arcminute) astronomical imaging at low frequency (below 150 MHz) has only recently become practical with the development of new calibration algorithms for removing ionospheric distortions.
A. S. Cohen, Cohen, Condon, Cotton, H. J. A. Röttgering, Jacobson, Kassim, Kelley, Ma, Rybicki, Schunk   +10 more
core   +1 more source

Observations and Simulation of Thermospheric Composition Changes During the 14 October 2023 Solar Eclipse

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract This study presents a full‐period imaging of the thermospheric composition response to the 14 October 2023 annular solar eclipse, combining GOLD (Global‐scale Observations of the Limb and Disk) far‐ultraviolet observations with solar‐irradiance‐driven WACCM‐X (Whole Atmosphere Community Climate Model with thermosphere–ionosphere extension ...
Yu Jiao, Jing Liu, Xuguang Cai, Joseph M. McInerney, Shuhan Li   +4 more
wiley   +1 more source

Detection and description of the different ionospheric disturbances that appeared during the solar eclipse of 21 August 2017 [PDF]

, 2018
This work will provide a detailed characterization of the travelling ionospheric disturbances (TIDs) created by the solar eclipse of 21 August 2017, the shadow of which crossed the United States from the Pacific to the Atlantic ocean.
Hernández Pajares, Manuel, Monte Moreno, Enrique, Yang, Heng   +2 more
core   +2 more sources

Daytime Ionospheric Density Enhancement Driven by Poleward Neutral Wind Shear Associated With Gravity Waves During the November 2025 Geomagnetic Storm

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract The threefold daytime electron density increases, along with strong poleward meridional winds exceeding 200 m/s were captured by Sanya Incoherent Scatter Radar (SYISR) during the geomagnetic storm of 12 November 2025. The great ionospheric enhancements were extending to mid‐latitudes over 40° observed by total electron content (TEC) from ...
Qi Jiang, Jiuhou Lei, Zhongli Li, Fuqing Huang, Rong Xia, Tong Dang, Xinan Yue, Xiaoli Luan   +7 more
wiley   +1 more source