Results 61 to 70 of about 18,291 (244)

Modeling of Magnetic Local Time Asymmetry in Storm‐Time Low‐Latitude Geomagnetic Field Disturbances Due To Partial Ring Current

open access: yesSpace Weather
The intensity of storm‐time disturbance in the ground magnetic field varies significantly at different longitudes due to the magnetic local time (MLT) dependent contributions from different magnetospheric and ionospheric currents. Local geomagnetic field
S. Tulasi Ram   +7 more
doaj   +1 more source

Emergence of a localized total electron content enhancement during the severe geomagnetic storm of 8 September 2017 [PDF]

open access: yesAnnales Geophysicae, 2019
In this work, the results of the analysis on total electron content (TEC) data before, during and after the geomagnetic storm of 8 September 2017 are reported.
C. Sotomayor-Beltran, L. Andrade-Arenas
doaj   +1 more source

Enhancing Low‐Latitude Ionospheric Irregularity Prediction With Generalized Linear Models

open access: yesSpace Weather, Volume 24, Issue 3, March 2026.
Abstract The ionosphere poses challenges for accurate forecasting due to its complexity and variability. Irregularities in the lower ionosphere are influenced by local time, season, geographic location, solar activity and space weather, complicating precise predictions.
Alysson Brhian   +4 more
wiley   +1 more source

Wavelet analysis of the ionospheric response at mid-latitudes during the April 200 storm using magnetograms and vTEC from GPS [PDF]

open access: yes, 2013
In this work we pursue the idea of computing a parameter that allows us to estimate the local ionospheric response to a geospheric event that triggers an ionospheric storm. For that, wavelet technique has been chosen because of its ability to analyze non-
Fernandez, Laura Isabel   +2 more
core  

Enhancement of Terrestrial Diffuse X-ray Emission Associated With Coronal Mass Ejection and Geomagnetic Storm

open access: yes, 2011
We present an analysis of a Suzaku observation taken during the geomagnetic storm of 2005 August 23-24. We found time variation of diffuse soft X-ray emission when a coronal mass ejection hit Earth and caused a geomagnetic storm.
Ezoe, Yuichiro   +6 more
core   +1 more source

Formation of the oxygen torus in the inner magnetosphere: Van Allen Probes observations [PDF]

open access: yes, 2015
We study the formation process of an oxygen torus during the 12–15 November 2012 magnetic storm, using the magnetic field and plasma wave data obtained by Van Allen Probes.
De Pascuale, S.   +11 more
core   +3 more sources

Strong Polar Ionospheric Electron Density Depletion Under Prolonged Northward IMF Bz Condition

open access: yesEarth and Space Science, Volume 13, Issue 3, March 2026.
Abstract Previous studies have primarily focused on high‐latitude ionospheric‐thermospheric (I‐T) variabilities under southward interplanetary magnetic field (IMF) conditions, while rare studies have investigated the I‐T responses to due northward Bz (NBz), especially in the presence of strong IMF By conditions.
Tianyu Cao   +3 more
wiley   +1 more source

Characterization of G -Semigroup by Intuitionistic N-Fuzzy Set (INFS) and its level set [PDF]

open access: yes, 2017
Some characterizations of G -Semigroup by intuitionistic N-fuzzy sets have been given here. The concept of intuitionistic N-fuzzy set (INFS) and its level set has been applied to G -semigroup.
Iqbal, Zaffar   +2 more
core   +1 more source

Ionospheric response to the February 27, 2023 intense geomagnetic storm over Kharkiv and the Akademik Vernadsky station

open access: yesУкраїнський антарктичний журнал
This study aims to investigate ionospheric responses to the February 27, 2023 intense geomagnetic storm over Kharkiv and the Akademik Vernadsky (hereinafter – Vernadsky) station using ionosondes.
Maryna Reznychenko   +8 more
doaj   +1 more source

Ionospheric storms at geophysically-equivalent sites – Part 2: Local time storm patterns for sub-auroral ionospheres [PDF]

open access: yesAnnales Geophysicae, 2010
The response of the mid-latitude ionosphere to geomagnetic storms depends upon several pre-storm conditions, the dominant ones being season and local time of the storm commencement (SC).
M. Mendillo, C. Narvaez
doaj   +1 more source

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