Results 71 to 80 of about 819 (150)
Abstract Shortwave fadeout (SWF) is a typical dayside high‐frequency radio disturbance caused by solar flare‐induced ionospheric ionization enhancement. Using newly built Chinese Dual Auroral Radar Network (CN‐DARN) observations, we investigate two X‐flare‐driven SWFs during the May 2024 geomagnetic superstorm (SYM‐H = −518 nT), on 10 May (pre‐storm ...
Junjie Tong +9 more
wiley +1 more source
We apply the IRI-2012 version of the International Reference Ionosphere model to calculate the difference between frequencies of adjacent harmonics (frequency scale) of the ionospheric Alfvén resonator (IAR) emission.
Potapov Alexander S. +2 more
doaj +1 more source
Model of mid-and low-latitude F region ionosphere and protonosphere
En este trabajo se resuelven las ecuaciones combinadas de continuidad y momentum de los iones O+ y H+, en la región F y la protonosfera, para una estación de latitud media (Arecibo) y una estación de latitud baja (Jicamarca) con el fin de investigar el ...
A. Tan, S.T. Wu
doaj +1 more source
Thermospheric Neutral Species Reduced Order Probabilistic Emulator: Dimensionality Reduction
Abstract One area of significant interest for space operations is the application of physics‐based thermosphere models for accurate drag modeling. However, their computational complexity limits their use in operational settings. To address this, recently developed reduced‐order probabilistic emulators (ROPE) based on the Thermosphere‐Ionosphere ...
Nathaniel E. Michek, Piyush M. Mehta
wiley +1 more source
Abstract This study analyzes the 10–12 May 2024 geomagnetic storm using data from the Ebre (Spain) and Livingston Island (Antarctica) geomagnetic observatories, together with modeling approaches to assess its impact on the Spanish power transmission grid.
J. M. Torta, S. Marsal
wiley +1 more source
Interhemispheric conjugate effect in longitude variations of mid-latitude ion density
Earlier incoherent scatter radar measurements revealed upward topside ion fluxes in the summer and downward fluxes in the winter at mid-latitudes at night; a summer to winter interhemispheric coupling was accordingly inferred.
Chen Yiding +3 more
doaj +1 more source
Abstract Space weather events can significantly alter the ionospheric electron density, affecting signal transmission and navigation accuracy in satellite‐based systems. Consequently, there is an urgent need for reliable forecasting of the Thermosphere‐Ionosphere (TI) system.
J. Pereira +5 more
wiley +1 more source
Type‐III Solar Radio Bursts at Mars: A 16.5‐Year Catalog From Mars Express‐MARSIS at 0.1–5.5 MHz
Abstract The most intense radio feature in the Solar System are the solar Type‐III radio bursts, which are associated with electron beams that propagate along open magnetic field lines. Although solar radio bursts have been studied since the 1940s, observations remain mainly restricted within 1 AU.
Beatriz Sánchez‐Cano +22 more
wiley +1 more source
Neutral Wind Control of Jupiter's Non‐Auroral Ionosphere
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
Abstract This study investigates the roles of neutral winds, composition and atmospheric waves in storm‐time post‐midnight equatorial plasma bubble (EPB) development using the coupled SAMI3‐WACCMX model. Simulations reveal the formation of post‐midnight EPBs extending beyond 1,500 km in altitude and persisting into the post‐sunrise period.
Min‐Yang Chou +4 more
wiley +1 more source

