Analysis of Ionospheric Compressional Waves and Electron Density Oscillation During Storm Periods Using Swarm Observations

Tomographic reconstruction of ionospheric electron density during the storm of 5-6 August 2011 using multi-source data

The insufficiency of data is the essential reason for ill-posed problem existed in computerized ionospheric tomography (CIT) technique. Therefore, the method of integrating multi-source data is proposed. Currently, the multiple satellite navigation systems and various ionospheric observing instruments provide abundant data which can be employed to reconstruct ionospheric electron density (IED)....

Investigation of the effects of geomagnetic storms on ionospheric irregularities using the combination of ground-based GNSS and SWARM satellites

Geomagnetic storms are one of the main causes of ionospheric perturbations in different sizes, depending on their intensity, which could disturb radio signals passing through this medium. On September 6-12, 2017, the sudden storm commencement (SSC) was the most massive geomagnetic storm of the year due to the X9 solar flare caused by a coronal mass ejection (CME). IMF-Bz and Dst values increase...

Analysis of ionospheric electron density distribution from GPS/MET occultations

In this paper we present results from analysis of GPS/MET occultation data obtained from the University Corporation for Atmospheric Research database. We have used High-Rate occultation data to study the performance of an earlier 4D ionospheric electron content model|obtained tomographically with the use of the GPS constellation|with satisfactory results. In addition, we have processed UCAR Lev...

Multiresolution Tomography of Ionospheric Electron Density

Development and error analysis of nonlinear ionospheric removal algorithm for ionospheric electron density determination using broadband RF data

[1] The first documented, empirical comparisons are provided of four methods to retrieve total electron content (TEC) that use broadband, impulsive events detected by satellite in the lower very high frequency range (20–150 MHz). The four TEC retrieval methods are the quasi‐longitudinal approximation (i.e., Taylor expansion) of the Appleton‐Hartree (A‐H) dispersion relation to the first and sec...