We utilize principal component analysis to identify and quantify the primary electric potential morphologies during geomagnetic storms. Ordering data from Super Dual Auroral Radar Network (SuperDARN) by storm phase, we are able discern changes that occur in association with development of phases. Along information on size patterns, first six eigenvectors provide over ∼80% variability morphology...

The Federal Aviation Administration’s Wide Area Augmentation System (WAAS) provides high integrity GPS-based precision navigation service to users in the conterminous United States. In October 2003, only four months after WAAS was commissioned, a series of coronal mass ejections from the sun triggered one of the strongest geomagnetic and ionospheric storms of the solar cycle. WAAS user integrit...

Plasma content and distribution are key parameters in the dynamics of inner magnetosphere. The plasmasphere contributes, for most part, to plasma mass density, its properties very dependent on history magnetosphere geomagnetic activity. In this work, we investigated plasmasphere–ionosphere coupling, focusing refilling process that followed storm occurred 1 June 2013. equatorial density used eva...

An evaluation of the subsolar pressure balance between the solar wind and the geomagnetic field shows that the average proton density of the quiet-day solar wind (300-400 km/sec) should be between 6 and 10 p/cm a. Even during storm times the proton density should always be between 2 p/cm 3 and 70 p/cm 3. The relation between the interplanetary solar-wind parameters and the stagnation pressure i...