9-13 July 2012
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=11&confId=14"><font color=#ff0000>SAIP2012 PROCEEDINGS AVAILABLE</font></a>

Correlating fractional hop whistlers detected on DEMETER with WWLLN lightning

11 Jul 2012, 10:55
20m
Oral Presentation Track D2 - Space Science Space Science

Speaker

Mr Brett Delport (University of KwaZulu-Natal)

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

It is well known that the number of lightning strokes at a particular location far exceeds the number of whistlers detected at the conjugate point. Correlation analyses between global lightning and whistlers have revealed that it is possible for the initiating lightning stroke to be a significant distance from the conjugate point. This study aims to further explore this result. Whistlers are frequently observed at Tihany, Hungary, which is magnetically conjugate to a point off the east coast of South Africa.Using broadband VLF data from the DEMETER satellite and lightning data from WWLLN, we have computed the regions which produce lightning capable of launching whistler mode waves into the magnetosphere above the conjugate point. DEMETER is a satellite in a quasi Sun-synchronous, low earth orbit which suffers from timing inaccuracies. Due to these inaccuracies, we have calibrated the data using data from the South African Lightning Detection Network.

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

PhD

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

Yes

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

Yes

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

Andrew Collier (collierab@gmail.com)

Primary author

Mr Brett Delport (University of KwaZulu-Natal)

Co-authors

Dr Andrew Collier (SANSA Space Science) Dr Janos Lichtenberger (ELTE) Dr Michel Parrot (CNRS) Dr Peter Steinbach (ELTE)

Presentation Materials