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Ravindra Desai (Imperial): Space Weather: From the Sun to Saturn

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Location: MS Teams

Space Weather is influenced by phenomena operating across a multitude of scales, from the large-scale expulsion and evolution of coronal mass ejections from the solar corona, to particle-scale interactions within the Earth’s radiation belts. My interests within plasma simulations focus on both large-scale fluid physics and kinetic particle-scale processes and the interplay between them. In this seminar I will start with Sun-to-Earth studies of coronal mass ejections and review some of the largest geomagnetic storms on record and examine under what conditions “Carrington-scale” events are possible.  I will then discuss how these impulsive injections of energy flow through the coupled Sun-Earth system and present an imminent danger to our increasingly technology-reliant society. In particular, I will focus on how non-thermal particle distributions can be created within the magnetosphere and feedback to influence the large-scale dynamics.  Following this, I will examine how these plasmas act to charge orbiting spacecraft and show how the outer solar system provided a novel class of spacecraft-plasma interactions for the Cassini spacecraft during its Grand Finale plunge into Saturn.

Tags: CFSA Seminar

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Due to the implementation of a new UKRI funding system (TFS) there will be a fixed quarterly deadlines for some grants which would previously have been on open calls, this is to allow necessary system amendments and updates.

The first deadline after implementation will be 28th September 2023 and applies to those calls listed below:

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