Physics
Scientific paper
Jun 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009adspr..43.1669z&link_type=abstract
Advances in Space Research, Volume 43, Issue 11, p. 1669-1675.
Physics
2
Scientific paper
Accurate knowledge of the electron density is the key point in correcting ionospheric delays of electromagnetic measurements and in studying ionosphere physics. During the last decade Global Navigation Satellite Systems (GNSS) have become a promising tool for monitoring ionospheric parameters such as the total electron content (TEC). In this contribution we present a four-dimensional (4-D) model of the electron density consisting of a given reference part, i.e., the International Reference Ionosphere (IRI), and an unknown correction term expanded in terms of multi-dimensional base functions. The corresponding series coefficients are calculable from the satellite measurements by applying parameter estimation procedures. Since satellite data are usually sampled between GPS satellites and ground stations, finer structures of the electron density are modelable just in regions with a sufficient number of ground stations. The proposed method is applied to simulated geometry-free GPS phase measurements. The procedure can be used, for example, to study the equatorial anomaly.
Bilitza Dieter
Schmidt Matthias
Shum C. K.
Zeilhofer C.
No associations
LandOfFree
Regional 4-D modeling of the ionospheric electron density from satellite data and IRI does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Regional 4-D modeling of the ionospheric electron density from satellite data and IRI, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Regional 4-D modeling of the ionospheric electron density from satellite data and IRI will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-775493