This paper deals with the problem of ionosphere scintillations and their impact on the GPS positioning errors

The disturbances and irregularities in the ionosphere are primarily recognized ramifications of space weather called scintillations. Irregularities electron densities source ionospheric This article investigates scintillations, which predominant trans-equatorial equatorial regions. Based on data from a multi-constellation Global Navigation Satellite Systems (GNSS) receiver at Chaitanya Bharathi...

Data from 64 stations of the global ionosonde network were used to estimate correlation coefficient between critical frequency ionosphere and its total electron content TEC during periods high solar activity in March 2022. This vast majority cases exceeded value 0.9, which indicates interchangeability these parameters assessing state environment. assessment using parameter revealed a positive i...

Abstract The spatial and temporal dynamics of ionospheric currents are among the most evident manifestations interaction between magnetized plasma solar origin magnetosphere‐ionosphere system. In this context, a special role is played by field‐aligned (FACs), which drive energy momentum exchanges magnetosphere ionosphere, deeply affecting balance latter. One relevant physical quantities that ma...

The shape of the vertical electron density profile is a result production, loss and transportation plasma in Earth’s ionosphere. Therefore, equivalent slab thickness ionosphere that characterizes width profiles an important parameter for better understanding ionospheric processes under regular as well perturbed conditions. defined by ratio total content over peak therefore easy to compute utili...

Interferometric Synthetic Aperture Radar (InSAR) and the Global Positioning System (GPS) are commonly used to obtain surface topography and surface motions for the study of crustal deformation. Because both of these systems operate from satellites high above the Earth’s surface, the arrival time of the propagating signals is delayed as the signals travel through the Earth’s ionosphere. As a res...

As a preliminary to the studies conducted by the individual Working Groups, a review has been undertaken of topics which are relevant to the space-weather phenomena that can occur. The ways in general that these can influence the state of the ionosphere are discussed. The various changes in propagation parameters that arise on Earth-space and terrestrial radio paths via the ionosphere are liste...

We investigate the effect of halo activity on the electrostatic field measured at ground level. We use electrostatic arguments as well as self-consistent simulations to show that, due to the screening charge in the ionosphere, the distant electrostatic field created by the uncompensated charge in a thundercloud decays exponentially rather than as the third power of the distance. Furthermore, si...

This paper highlights the important role played by the EISCAT radar for verification in the development of tomographic techniques to produce images of ionospheric electron density. A brief review is given of some of the stages in the application of tomographic reconstruction techniques to the ionosphere. Results are presented to illustrate the effectiveness of the method in imaging ionospheric ...

The complex interactions in the upper atmosphere, which control height-dependent ionospheric response to 27-day solar rotation period, are investigated with superposed epoch analysis technique. signatures describing activity calculated from a proxy (F10.7) and wavelength-dependent extreme ultraviolet (EUV) fluxes (Thermosphere Ionosphere Mesosphere Energetics Dynamics/Solar EUV Experiment), cor...