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Modeling African equatorial ionosphere using ordinary Kriging interpolation technique for GNSS applications

journal contribution
posted on 2023-05-20, 16:19 authored by Abe, OE, Rabiu, AB, Olawale Bolaji, Oyeyemi, EO
The ability to model the ionosphere accurately for single frequency users in satellite applications has gained some appreciable usage, most especially during quiet conditions in a mild (middle latitudes) ionosphere. However, solving the problem of ionosphere for single frequency user of Global Navigation Satellite Systems (GNSS) in equatorial ionization anomaly (EIA) region is of a great concern for space scientists and engineers. Several methodologies have been used to develop models that describe global or regional maps for ionosphere errors in order to mitigate the effect of the errors on GNSS systems. Global or regional ionosphere Maps have been known to be an efficient tool to monitor the delay introduced by the ionosphere in the satellite signals. This research uses the conventional Planar fit and ordinary Kriging methodologies to assess a regional map for ionosphere correction in equatorial African sector. The result obtained is an indication that modified Kriging methodology describes the EIA ionosphere corrections better compared with ordinary Kriging and Planar fit methodologies.

History

Publication title

Astrophysics and Space Science

Volume

363

Issue

8

Article number

168

Number

168

Pagination

1-19

ISSN

0004-640X

Department/School

School of Natural Sciences

Publisher

Kluwer Academic Publ

Place of publication

Van Godewijckstraat 30, Dordrecht, Netherlands, 3311 Gz

Rights statement

© Springer Nature B.V. 2018

Repository Status

  • Restricted

Socio-economic Objectives

Atmospheric processes and dynamics

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