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Engineering-Physics Space Plasma Seminar
4:00pm - 5:00pm EST
High-Latitude Ionospheric Convection During Geomagnetic Storms
Geomagnetic storms are a global phenomenon in Earth’s geospace. Driven by extreme solar wind conditions, the ring current which is formed by plasma circulating Earth in space, enhances during a geomagnetic storm. This can lead to extreme effects on technology at Earth and in space, such as damaging pipelines, railways, and telecommunication satellites. Understanding what happens during a storm is key towards effectively predicting and preparing for these space weather effects. One way to image the system’s activity, is to study plasma convection at high-latitudes. This can be used as a proxy for global plasma convection: it ties solar wind driving and internal magnetospheric activity into a measure for global activity. Using the Super Dual Auroral Radar Network, we measure the high- to mid-latitude ionospheric convection.
In this talk, I will explore how the measurements extracted from SuperDARN change during a geomagnetic storm; what happens to the high-latitude convection pattern during storm; and how measurements during geomagnetically active times compare to times of high solar wind driving when no storm occurs.
About the Speaker(s)
Lancaster University, UK
For more information, contact Simon Shepherd at email@example.com.