4-8 July 2016
Kramer Law building
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=10&confId=86">The Proceedings of SAIP2016</a> published on 24 December 2017

Ionospheric Disturbances During Geomagnetic Storm at SANAE

6 Jul 2016, 10:00
20m
5B (Kramer Law building)

5B

Kramer Law building

UCT Middle Campus Cape Town
Oral Presentation Track D2 - Space Science Space Science

Speaker

Mr Alicreance HIYADUTUJE (South African National Space Agency and Rhodes University)

Please indicate whether<br>this abstract may be<br>published online<br>(Yes / No)

Yes

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

Name: Dr Zama Katamzi
E-mail: zkatamzi@sansa.org.za
Institutions: South African National Space Agency & RU

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

MSc

Abstract content <br> &nbsp; (Max 300 words)<br><a href="http://events.saip.org.za/getFile.py/access?resId=0&materialId=0&confId=34" target="_blank">Formatting &<br>Special chars</a>

It has been reported by many studies that the ionosphere responds differently to different geomagnetic storms depending on their magnitude and time of occurrence.
During geomagnetic storms the polar plasma dynamics can influence the middle and low latitude ionosphere via travelling ionospheric disturbances (TIDs).
TIDs are a wave-like electron density disturbances caused by atmospheric gravity waves propagating in the ionosphere.
The aim of this study is to investigate the ionospheric responses to the storm of 15th July 2012 using total electron content (TEC) and scintillations
measurements derived from
Global Positioning System (GPS) receiver as well as superDARN relative power at SANAE station and superDARN convection map.
TEC results show that this storm had positive storm effect on the ionosphere (i.e. increase in TEC), which commenced in the main phase of the storm
and lasted for approximately 8 hours.
Both TEC and superDARN power measurements show presence of a TID with period of 39 minutes and amplitude of ~ 0.6 TECU between 12:00 and 16:00 UT.
SuperDARN convection map indicates that this TID was caused by instabilities moving at around 200 m/s brought by the heat gradient in the plasma
around 9:40 magnetic local time (MLT).

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

No

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

Yes

Primary author

Mr Alicreance HIYADUTUJE (South African National Space Agency and Rhodes University)

Co-authors

Dr Judy Stephenson (University of KwaZulu Natal) Dr Zama Katamzi (South African National Space Agency and Rhodes University)

Presentation Materials

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