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Found 4 entries in the Bibliography.
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The main objective of this study was to figure out a relationship between space weather environment phenomena (linked to solar and geomagnetic activity) and ionospheric events that impact L-band operating satellite systems (scintillations, electron content gradients), especially satellite navigation services, in the Nordic European area. A simple empirical model to forecast index of rate of change of the total electron content (ROTI) at high latitude has been developed associated with Kp geomagnetic prediction and the use ...
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YEAR: 2014   DOI: 10.1109/EuCAP.2014.6902380
We present a statistical analysis of the amplitudes of GPS scintillations (S4 index) observed throughout 2008\textendash2010 using the satellite radio occultation measurements of the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC). Here, for the first time, periodic variability in the occurrence of S4 is investigated using these data. Significant variations of S4 with periods of 2.5\textendash4 days (quasi-3 days) are identified from the observations during postsunset hours (1900\textendas ...
Published by: Journal of Geophysical Research: Space Physics Published on: 02/2013
YEAR: 2013   DOI: 10.1002/jgra.50139
The Far-Ultraviolet Imager on the IMAGE spacecraft (IMAGE-FUV) has been used to observe O+plasma depletions in the post-sunset equatorial ionosphere. Small-scale density irregularities associated with such depletions are believed to adversely affect trans-ionospheric radio signals such as GPS. Prediction of the motion of these plasma depletions is a necessary component of the ability to forecast the occurrence of such radio signal interference. An automated method has recently been developed to identify and tra ...
Published by: Journal of Geophysical Research: Space Physics Published on: 12/2012
YEAR: 2012   DOI: 10.1029/2012JA018091
Published by: Space Weather Published on: Jan-01-2010
YEAR: 2010   DOI: 10.1029/2009SW000546