3-7 July 2017
Africa/Johannesburg timezone

A study on effects of geomagnetic extreme events in the middle atmosphere using Space-Borne Satellite and SuperDARN.

4 Jul 2017, 11:50
20m
A305 (Engineering Building 51)

A305

Engineering Building 51

Oral Presentation Track D2 - Space Science Space Science

Speaker

Mr Adila Wamisho Tire (University of KwaZulu-Natal, NASSP node)

Description

Geomagnetic extreme events are geophysical phenomenons observed as a result of Sun’s violent eruptive nature. As the Sun is the main driving factor of the atmosphere, there are vast number of works made to understand and explain the overall effects in dynamics, reaction and compositions of the atmosphere. But, due to the complexity of the interaction in the atmosphere it remains less understood. Events based studies help to easy the studies of the effects of geomagnetic storms in the middle atmosphere, this work presents effects of extreme storm events in the Mesosphere and Lower Thermosphere (MLT). A number of geomagnetic storm events are identified from satellite observations for this studies. Energetic particles precipitation data into the atmosphere, associated with storm events which may affect the atmospheric temperature and composition, obtained from NOAA Polar Orbiting Environmental Satellites (POES) measurements. SuperDARN, South African National Antarctic Expedition IV (SANAE IV) and its vicinity riometer data which are located in the Southern Hemisphere are employed to estimate ionospheric responses and conventions, and absorptions. Results show that extreme geomagnetic storms coupled with intensified energy absorption and possible middle atmosphere heating from the energy transport model calculations, which agrees with a number of well established results.

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

No

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

Sivakumar Venkataraman and Olakunle Ogunjobi

Venkataramans@ukzn.ac.za

School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa

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

MSc

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

No

Primary author

Mr Adila Wamisho Tire (University of KwaZulu-Natal, NASSP node)

Presentation Materials

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