12-15 July 2011
Saint George Hotel
Africa/Johannesburg timezone

Statistical Analysis of Outer Electron Radiation Belt Dropouts: Geosynchronous and Low Earth Orbit Responses During Stream Interfaces

15 Jul 2011, 12:15


Oral Presentation Track D2 - Space Science APSS


Mr Olakunle Ogunjobi (University of KwaZulu-Natal)


The OMNI-2 data set enables a correlation study of solar wind and geomagnetic parameters, allowing the stream Interfaces events (SIs) to be examined. A superposed epoch analysis of these events was performed to determine the threshold levels of IMF Bz and other geophysical parameters. Based on energy, temporal and spatial characteristics, statistical analysis of electron flux data from LANL-SOPA and NOAA-POES satellites were use to study outer zone electron dropouts and precipitation. The deepest minimum of electron flux was observed after the impact of a SI, which coincided with the time of slower-decaying peak of electron precipitation. Result suggest that the mechanism causing the precipitation could also be responsible for the observe electron flux dropout during Stream Interference.

Level (Hons, MSc, <br> &nbsp; PhD, other)? MSc.
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

Primary author

Mr Olakunle Ogunjobi (University of KwaZulu-Natal)


Dr A. B Collier (Hermanus Magnetic Observatory) Dr C. J. Rodger (University of Otago, New Zealand)

Presentation Materials