Results 51 to 60 of about 178 (93)

Characteristics of Large‐Scale Traveling Ionospheric Disturbances During the 10 May 2024 Geomagnetic Storm

open access: yesSpace Weather, Volume 23, Issue 10, October 2025.
Abstract Based on the total electron content (TEC) observation in the Asian‐Australian and American sectors, this paper investigates the characteristics and hemispheric asymmetry of large‐scale traveling ionospheric disturbances (LSTIDs) during the 10 May 2024 superstorm. We found that the amplitudes and meridional phase velocities of LSTIDs in the two
Tingwei Han   +11 more
wiley   +1 more source

SAMI3 data in netCDF format (2019-Apr-23)

open access: yes, 2023
SAMI3 (Sami3 is Also a Model of the Ionosphere) is a seamless, three-dimensional, physics-based model of the ionosphere (Huba et al, 2008). It is based on SAMI2, a two-dimensional model of the ionosphere (Huba et al., 2000).
Huba, Joseph   +2 more
core   +1 more source

Attitude control for satellites flying in VLEO using aerodynamic surfaces [PDF]

open access: yes, 2020
This paper analyses the use of aerodynamic control surfaces, whether passive or active, in order to carry out very low Earth orbit (VLEO) attitude maneuver operations.
Rodríguez Donaire, Silvia   +7 more
core   +1 more source

Exploring Two‐Dimensional and Three‐Dimensional Propagation of Large‐Scale Traveling Ionospheric Disturbances During the May 2024 Geomagnetic Storm Main Phase

open access: yesSpace Weather, Volume 23, Issue 10, October 2025.
Abstract During the main phase of the May 2024 super geomagnetic storm, we investigated large‐scale traveling ionospheric disturbances (LSTID) using data from densely distributed global GNSS receivers. From both two‐dimensional and three‐dimensional (3D) perspectives, we analyzed LSTID propagation characteristics over North America, European, and ...
Ting Zhang   +4 more
wiley   +1 more source

Effects of CME and CIR induced geomagnetic storms on low-latitude ionization over Indian longitudes in terms of neutral dynamics [PDF]

open access: yes, 2020
This paper presents the response of the ionosphere during the intense geomagnetic storms of October 12-20, 2016 and May 26-31, 2017 which occurred during the declining phase of the solar cycle 24. Total Electron Content (TEC) from GPS measured at Indore,
Paul, Ashik   +4 more
core   +1 more source

The Role of Wind Velocity, Wind Shear, and Electric Fields in the Formation of Sporadic E (Es)

open access: yesAtmosphere
The important role of neutral wind, its vertical shear, and external electric fields in the formation and localization of sporadic E (Es) are demonstrated analytically and numerically in equatorial and mid-latitude regions.
Goderdzi G. Didebulidze   +2 more
doaj   +1 more source

Unique Signatures of Meridional Wind Variations on the Electron Density Distribution Over the Dip Equator

open access: yesGeophysical Research Letters, Volume 52, Issue 18, 28 September 2025.
Abstract We investigate unusual daytime enhancement and undulations observed in Vertical Total Electron Content (VTEC) during the extreme G5 geomagnetic storm on 11 May 2024 over the dip equatorial station Trivandrum, India using a physics‐based ionospheric model.
Arya Ashok   +3 more
wiley   +1 more source

SAMI3 data in netCDF format (2019-Mar-21)

open access: yes, 2023
SAMI3 (Sami3 is Also a Model of the Ionosphere) is a seamless, three-dimensional, physics-based model of the ionosphere (Huba et al, 2008). It is based on SAMI2, a two-dimensional model of the ionosphere (Huba et al., 2000).
Huba, Joseph   +2 more
core   +1 more source

Michelson Interferometer for Global High-Resolution Thermospheric Imaging (MIGHTI) On-Orbit Wind Observations: Data Analysis and Instrument Performance. [PDF]

open access: yesSpace Sci Rev, 2023
Englert CR   +9 more
europepmc   +1 more source

SAMI3 data in netCDF format (2019-Mar-09)

open access: yes, 2023
SAMI3 (Sami3 is Also a Model of the Ionosphere) is a seamless, three-dimensional, physics-based model of the ionosphere (Huba et al, 2008). It is based on SAMI2, a two-dimensional model of the ionosphere (Huba et al., 2000).
Huba, Joseph   +2 more
core   +1 more source

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