Results 81 to 90 of about 22,029 (223)
Nonlinear Gyrokinetic Simulation of the Magnetosphere‐Ionosphere Feedback Coupling
Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.Abstract A nonlinear gyrokinetic simulation is applied to the magnetosphere‐ionosphere (M‐I) coupling system to investigate spontaneous growth of auroral structures and electron acceleration self‐consistently. Perturbations of electron density, potential and field‐aligned current in the auroral ionosphere develop through the feedback instability ...
T.‐H. Watanabe, K. Fujita, S. Maeyama
wiley +1 more source
Data Science Journal, 2009 The CASSIOPE Enhanced Polar Outflow Probe (e-POP) is a Canadian small-satellite mission dedicated to the study of polar ion outflows and related magnetosphere-ionosphere coupling processes in the topside ionosphere.
A W Yau +13 more
doaj +1 more source
Do Eclipse‐Induced Thermospheric TADs Originate From Above or Below?
Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract Solar eclipses generate significant wave activity in the Earth's upper atmosphere. The source region of eclipse‐induced Traveling Atmospheric Disturbances (TADs) in the upper thermosphere—particularly the relative contributions of gravity waves from the thermosphere itself versus the lower atmosphere—remains unknown. Using the Whole Atmosphere
Yu Jiao +5 more
wiley +1 more source
Self-consistent modelling of the polar thermosphere and ionosphere to magnetospheric convection and precipitation (invited review) [PDF]
It has recently been demonstrated that the dramatic effects of plasma precipitation and convection on the composition and dynamics of the polar thermosphere and ionosphere include a number of strong interactive, or feedback, processes.
Fuller-Rowell, T. +3 more
core +1 more source
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 +4 more
wiley +1 more source
Do Migrating Semidiurnal Tidal Winds From the Lower Atmosphere Control Thermospheric Winds?
Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract Lower atmospheric tides are important for driving the thermospheric and ionospheric structure. The effects of different lower atmospheric migrating semidiurnal tidal fields of neutral density, temperature, and winds on the thermospheric winds are investigated by using the global ionosphere‐thermosphere model with forcing of the tides at the ...
Chen Wu, Aaron J. Ridley
wiley +1 more source
Solar cosmic ray effects in the lower ionosphere [PDF]
The polar cap absorption (PCA) events are the most remarkable geophysical phenomena in the high latitude ionosphere. Their effects are extended on the whole polar region in both hemispheres.
Shirochkov, A. V.
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Asymmetrically Distributed Kelvin‐Helmholtz Instability at Venusian Magnetosphere
Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract The asymmetric distribution of Kelvin‐Helmholtz (KH) instability at Venusian ionopause is investigated using a multifluid model. Results show that KH instability distributes asymmetrically, preferentially developing in the −E (anti‐parallel to the interplanetary electric field) hemisphere.
Maodong Yan +7 more
wiley +1 more source
Polar magnetic disturbances and intrusion of charged particles into the ionosphere [PDF]
Polar magnetic disturbances and data on charged particles in ionosphere evaluated to prove regularity of ...
Afonina, R. G., Feldshteyn, Ya. I.
core +1 more source
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 +7 more
wiley +1 more source