We have developed a dynamic geomagnetic vertical cutoff rigidity model that predicts the energetic charged particle transmission through the magnetosphere. Initially developed for space applications, we demonstrate the applicability of this library of cutoff rigidity models for computing aircraft radiation dose. The world grids of vertical cutoff rigidities were obtained by particle trajectory ...

Evaluation of cosmic ray trajectories and penetration inside the Earth environment is mandatory for estimation flux by on-orbit detectors as well radiation damage on electronics devices biological tissues, like those astronauts onboard International Space Station. We studied impact external magnetic field calculation some parameters rigidity cut-off, a quantitative comparison among several geom...

This article presents a nonlinear least square estimation method based on the continuous TEC values at single stations from long-time recorded dual-frequency GPS data of International GNSS Service (IGS) to facilitate single-station empirical total electron content (TEC) modelling. The Nonlinear Polynomial GPS-TEC Model (NPGTM) each four different (namely Ellesmere Island (alrt), Canada; Lhasa (...

Natural hazards and geomagnetic disturbances can generate a combination of atmospheric ionospheric waves different scales. The carrier phase signals global navigation satellite system (GNSS) provide the highest efficiency to detect study weak in contrast total electron content (TEC) TEC-based indices. We consider border between informative part spectrum uninformative noises—the deviation freque...

Abstract The present work deals with the study of first three harmonics of low amplitude anisotropic wave trains of cosmic ray intensity over the period 1991-1994 for Deep River neutron monitoring station. It is observed that the diurnal time of maximum remains in the co-rotational direction; whereas, the time of maximum for both diurnal and semi-diurnal anisotropy has significantly shifted tow...

This is anOp Abstract – Users of the Global Positioning System (GPS) utilize the Ionospheric Correction Algorithm (ICA) also known as Klobuchar model for correcting ionospheric signal delay or range error. Recently, we developed an ionosphere correction algorithm called NTCM-Klobpar model for single frequency GNSS applications. The model is driven by a parameter computed from GPS Klobuchar mode...