Energetic particles in the heliosphere and their influence on space weather and space climate

Start Date
End Date
An RAS Specialist Discussion Meeting organised by Simon Thomas* and Luke Barnard (Reading), Silvia Dalla and Timo Laitinen (UCLan)*Contact: S.R.Thomas AT pgr.reading.ac.uk Energetic particles are found throughout the heliosphere in a number of different forms. Galactic cosmic rays (GCRs) originate from outside of the heliosphere and are constantly detected at Earth, providing information on long-term solar variability. Solar energetic particles (SEPs) are accelerated during flares and in the shock fronts driven by Coronal Mass Ejections, and are detected in intense short-term bursts. Both GCRs and SEPs are a Space Weather danger for spacecraft and humans in space. Within the magnetosphere, energetic particles are present in the radiation belts and particle precipitation is responsible for the aurora. This meeting will aim to address the passage of energetic particles through the heliosphere, and their detection at Earth, as well as the physical processes that they are subjected to en route, to get a full picture of their production and transport. The meeting aims to promote sharing of expertise by researchers studying different aspects of this problem and to emphasise the recent advances in this field. Morning Session - Chairs: Luke Barnard & Simon Thomas10:00 Coffee and welcome10:30 Harm Moraal, North-West University, South Africa
Galactic cosmic rays and climate11:00 Rami Vainio, University of Turku, Finland
Solar energetic particles and space weather11:30 Keri Nicoll, University of Reading
Energetic particle measurements and effects in Earth's atmosphere 11:45 Short Break 11:55 Sarah Glauert, British Antarctic Survey
Where do the MeV electrons in the radiation belts come from?
12:10 Ian Richardson, NASA Goddard
Solar energetic particle events including ~25 MeV protons in Cycle 24 and previous cycles.
12:25 Ruth Bamford, RAL Space
Surfing the wave: SEP acceleration in CME driven shocks.
12:40 Mike Marsh, UCLan
SPARX: a propagation based modelling system for solar energetic particle radiation space weather forecasting 13:00 Lunch Afternoon Session - Chairs: Silvia Dalla & Timo Laitinen14:00 Chris Owen, Mullard Space Science Laboratory
Energetic particles in the terrestrial magnetosphere
14:25 Philippa Browning, University of Manchester
Generation of energetic particles by magnetic reconnection in solar flares
14:50 Duncan Stackhouse, University of Glasgow
The formation of the Kappa-distribution accelerated electron populations in solar flares
15:05 Alexander MacKinnon, University of Glasgow
Using gamma-ray continuum to diagnose ~GeV ion properties at the Sun Poster Presentations
Hamish Reid, University of Glasgow
How the Type III Stopping Frequency Relates to Solar Energetic Electron Transport.
Karen Aplin, University of Oxford
The atmospheric electrical effects of the Carrington flare.
Kim Tucker-Hood, University of Reading
Validation of Genuine CME Arrival Predictions Made Using Real-Time Heliospheric Imager Observations.
Grace Ihongo, University of Aberdeen
The Relationship Between Galactic Cosmic Rays and the Solar Wind.
Jaroslav Dudik, University of Cambridge
Imaging and spectroscopic observations of a non-Maxwellian transient.
Nigel Meredith, British Antarctic Survey
Global Model of Low Frequency Chorus (fLHR < f < 0.1fce) from Multiple Satellite Observations.
Timo Laitinen, UCLan
Energetic particle cross-field propagation in meandering fields.
Peter Zelina, UCLan
Multi-spacecraft observations of heavy-ion solar energetic particles.
James Threlfall, University of St. Andrews
Acceleration of particles in a 3D reconnecting magnetic separator.