Results 71 to 80 of about 570 (182)

Effects of the Geomagnetic Superstorms of 10–11 May 2024 and 7–11 October 2024 on the Ionosphere and Plasmasphere

Atmosphere
On 10 May 2024 at 17 h:07 UTC, the simultaneous arrival of several solar coronal mass ejections (CMEs) generated the strongest geomagnetic storm of the last twenty years, with a minimum Dst = −412 nT, usually referred to as the Mother’s Day event.
Viviane Pierrard, Tobias G. W. Verhulst, Jean-Marie Chevalier, Nicolas Bergeot, Alexandre Winant   +4 more
doaj   +1 more source

Global Effect of Long‐Lasting 07–12 October 2024 Geomagnetic Storms During the Transition From a Strong (G3) to a Severe (G4) on the Geomagnetic Field and Ionospheric Parameters Distribution

Space Weather, Volume 24, Issue 7, July 2026.
Abstract This study investigates the co‐evolution of geomagnetic field disturbances with ionospheric parameters and their characteristic latitudinal signatures by conducting a location and time‐dependent analysis of the 07–12 October 2024 events, to fill crucial gaps in understanding the coupled response of the magnetosphere‐ionosphere system. This has
Yekoye Asmare Tariku
wiley   +1 more source

A new model for plasmapause locations derived from IMAGE RPI and Van Allen Probes data

Journal of Space Weather and Space Climate
The outer boundary of the plasmasphere, the plasmapause, is characterized by a sharp electron density gradient that changes under varying space weather conditions.
Banyś Daniela, Feltens Joachim, Jakowski Norbert, Berdermann Jens, Hoque Mainul M., Zandbergen René, Enderle Werner   +6 more
doaj   +1 more source

Modeling of the Plasmasphere Dynamics

, 2020
Die Plasmasphäre ist eine die Erde umgebende dynamische Region aus kaltem, dichtem Plasma. Ihre Form und Größe sind sehr anfällig für Schwankungen der solaren und geomagnetischen Bedingungen. Ein präzises Modell der Plasmadichte in der Plasmasphäre ist wichtig für die GNSS-Navigation und für die Vorhersage gefährlicher Auswirkungen der kosmischen ...
openaire   +4 more sources

Models for plasmasphere and plasmatrough density and average ion mass including dependence on L, MLT, geomagnetic activity, and phase of the solar cycle

Frontiers in Astronomy and Space Sciences
Using observations of mass density inferred from standing Alfvén wave frequencies and electron density inferred from plasma wave frequencies, predominantly for the Combined Release and Radiation Effects Satellite (CRRES) and Van Allen Probes spacecraft ...
Richard E. Denton, Kazue Takahashi, David P. Hartley   +2 more
doaj   +1 more source

The effect of disturbed-time electric fields on the inner plasmasphere

Annales Geophysicae
Results from a mathematical model provide a description of the mid-latitude, low <i>L</i>-shell ionosphere and plasmasphere. Variations in the composition and dynamics of the plasmasphere and changes in the nature of the coupling between the ...
H. F. Balmforth, R. J. Moffett, A. J. Smith, G. J. Bailey   +3 more
doaj  

A New Mechanism for Early-Time Plasmaspheric Refilling: The Role of Charge Exchange Reactions in the Transport of Energy and Mass Throughout the Ring Current-Plasmasphere System. [PDF]

J Geophys Res Space Phys, 2022
Liu J, Ilie R, Borovsky JE, Liemohn MW.
europepmc   +1 more source

Coincident Observations by the Kharkiv IS Radar and Ionosonde, DMSP and Arase (ERG) Satellites, and FLIP Model Simulations: Implications for the NRLMSISE‐00 Hydrogen Density, Plasmasphere, and Ionosphere

Geophysical Research Letters, 2018
This paper reports the results of ionosphere and plasmasphere observations with the Kharkiv incoherent scatter radar and ionosonde, Defense Meteorological Satellite Program, and Arase (ERG) satellites and simulations with field line interhemispheric ...
D. V. Kotov, P. G. Richards, V. Truhlík, O. V. Bogomaz, M. O. Shulha, N. Maruyama, M. Hairston, Y. Miyoshi, Y. Kasahara, A. Kumamoto, F. Tsuchiya, A. Matsuoka, I. Shinohara, M. Hernández‐Pajares, I. F. Domnin, T. G. Zhivolup, L. Ya. Emelyanov, Ya. M. Chepurnyy   +17 more
doaj   +1 more source

Automatic Detection of Lightning Whistlers Observed by the Plasma Wave Experiment Onboard the Arase Satellite Using the OpenCV Library

Remote Sensing, 2019
The automatic detection of shapes or patterns represented by signals captured from spacecraft data is essential to revealing interesting phenomena. A signal processing approach is generally used to extract useful information from observation data.
Umar Ali Ahmad, Yoshiya Kasahara, Shoya Matsuda, Mitsunori Ozaki, Yoshitaka Goto   +4 more
doaj   +1 more source

Plasmaspheric electron content

Geofísica Internacional, 1979
A pesar del abundante trabajo realizado sobre el problema del contenido electrónico plasmasférico y sobre flujos relevantes de plasmas fríos, existen solamente pocas determinaciones experimentales directas de estos conceptos.1. Sondeos ionosféricos (ionosondas terrestres y a bordo de satelites, mediciones de radar en experimentos de dispersión ...
openaire   +3 more sources