Results 41 to 50 of about 114,060 (217)

Deep Electron Density Depletion Near Sunset Terminator on St. Patrick's Day Storm and Its Impacts on Skywave Propagation

open access: yesSpace Weather, 2023
The plasma density distribution in the equatorial and low latitude ionosphere can often be severely disturbed during active space weather events that can have paramount impacts on the long‐distance high frequency (HF) radio wave (Skywave) communications ...
M. Ankita   +3 more
doaj   +1 more source

Study on Equatorial Bubbles Detected by SPS IMS Onboard the Kompsat-I [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2002
Space Physics Sensor onboard the KOMPSAT-1, which was launched at 1999, had transmitted ionospheric data during the solar maximum from June 2000 to August 2001.
Jaejeung Park   +3 more
doaj   +1 more source

A Machine Learning‐Based Model of Three‐Dimensional Ion Fluxes in the High‐Altitude Earth's Northern Cusp

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Magnetic reconnection at the dayside magnetopause is the primary pathway for transferring mass, momentum, and energy from the solar wind into the terrestrial magnetosphere. Previous studies have shown that the spatiotemporal dynamics of dayside magnetic reconnection can be inferred remotely from properties of Earth's cusps, specifically their ...
Gonzalo Cucho‐Padin   +8 more
wiley   +1 more source

The Equatorial Ionosphere [PDF]

open access: yes, 1986
247-263The equatorial ionosphere is a small but scintifically interesting part of the space plasma environment of the Earth. The equatorial 'spread F', the equatorial electrojet and the 'equatorial anomaly" in the F-regionplasma distribution are the most
Reddy, C A
core  

Chorus Wave‐Induced Ionospheric Variability

open access: yesGeophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Electron microbursts are short‐lived but intense electron precipitation and constitute a significant source of electron losses into the ionosphere and lower atmosphere. They are primarily produced by wave‐particle interaction with chorus waves in the magnetosphere.
Lunjin Chen   +5 more
wiley   +1 more source

Neutral Wind Control of Jupiter's Non‐Auroral Ionosphere

open access: yesGeophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract We use JAMMIES (JAMMIES is Another Model Making Ionospheric EStimates), a new model of Jupiter's non‐auroral ionosphere, to demonstrate that neutral wind‐driven field‐aligned plasma transport can explain decades of measurements inconsistent with a solar‐dominated ionosphere. Two observations highlight these inconsistencies: a minimum in H3+ ${\
K. Mohamed   +7 more
wiley   +1 more source

Daily and seasonal variations in the linear growth rate of the Rayleigh-Taylor instability in the ionosphere obtained with GAIA

open access: yesProgress in Earth and Planetary Science, 2018
The linear growth rates of the Rayleigh-Taylor (R-T) instability in the ionosphere from 2011 to 2013 were obtained with a whole atmosphere-ionosphere coupled model GAIA (ground-to-topside model of atmosphere and ionosphere for aeronomy).
Hiroyuki Shinagawa   +5 more
doaj   +1 more source

Observational Analysis on the Relationship Between Chorus Waves and MeV Microburst Electron Precipitation

open access: yesGeophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Microbursts are thought to be a key contributor to radiation belt electron loss, with chorus waves considered a primary driver of this precipitation. However, the conditions under which chorus waves produce MeV electron loss remain poorly constrained.
Jorge Romero‐Minaya   +3 more
wiley   +1 more source

Equatorial ionosphere [PDF]

open access: yes, 1990
410-423The development of research in E and F regions of the ionosphere in India since about 1950 is briefly described. The various geomagnetic factors controlling the F region at low latitudes during quiet, disturbed days, on different ages of the moon ...
Rastogi, R G
core  

Effects of strong IMF Bz southward events on the equatorial and mid-latitude ionosphere [PDF]

open access: yesAnnales Geophysicae, 2009
Dayside ionospheric response to five intense geomagnetic storms (Dst<−120 nT) that occurred in 2001–2005 was investigated by use of simultaneous TEC measurements by the CHAMP, SAC-C, TOPEX/Jason-1 satellites.
E. Astafyeva, E. Astafyeva
doaj   +1 more source

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