12-15 July 2011
Saint George Hotel
Africa/Johannesburg timezone
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Statistical Analysis of Outer Electron Radiation Belt Dropouts: Geosynchronous and Low Earth Orbit Responses During Stream Interfaces

Presented by Mr. Olakunle OGUNJOBI on 15 Jul 2011 from 12:15 to 12:30
Type: Oral Presentation
Session: APSS
Track: Track D2 - Space Science


<p>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.

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Room: Acro2

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