8-12 July 2013
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=13&confId=32"><font color=#ff0000>SAIP2013 PROCEEDINGS AVAILABLE</font></a>

Evaluation of the NeQuick model in Southern mid-latitudes using South African co-located GPS and Ionosonde stations data

10 Jul 2013, 17:40
1h
Poster Presentation Track D2 - Space Science Poster2

Speaker

Mr Sylvain Malan Ahoua (South African National Space Agency (SANSA) Space science)

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD)?

PhD

Abstract content <br> &nbsp; (Max 300 words)

This work investigates the performance of the NeQuick model in southern mid-latitudes. The NeQuick is used among others for the European Geostationary Navigation Overlay Service (EGNOS), developed to supplement the GNSSs systems by reporting on the reliability and accuracy of the positioning data. It is used by recommendation of the ITU-R, to compute the estimated TEC presumed along the ray path of the signal from satellite to the GNSS receiver. The performance of the NeQuick is evaluated after it is adapted to the local conditions by ingesting the Fof2 and M(3000)F2 recorded by the means of Ionosonde at Hermanus (34.40S; 19.20E, South Africa). It is then used to compute a theoretical TEC above Hermanus and compared to the observed TEC derived from co-located GPS receiver which belongs to the TrigNet network. The TEC is directly extracted from the data stocked by the Gopi GPS-TEC software. To evaluate the model under different geomagnetic contexts we select three days each of quiet and disturbed magnetically according to different solar activity indicators. The results will be useful to advise users of GNSS equipment.

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

yes

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

yes

Main supervisor (name and email)<br>and his / her institution

Dr CILLIERS Pierre
email: pjcilliers@sansa.org.za
South African National Space Agency

Primary author

Mr Sylvain Malan Ahoua (South African National Space Agency (SANSA) Space science)

Co-authors

Dr John Bosco HABARULEMA (South African National Space Agency) Prof. Olivier Kouadio OBROU (Laboratoire de Physique de L’Atmosphère, Université F.H.B de Cocody, Côte d'Ivoire)

Presentation Materials

Peer reviewing

Paper