CEDAR email: Call for abstracts for Royal Astronomical Specialist Discussion Meeting: 8th March

[Walach, Maria]

Dear colleagues,

We are inviting you to submit abstracts to the Royal Astronomical Specialist Discussion Meeting titled "Meeting the Challenges of Limited Observations for the Global Modelling of the Ionosphere-Thermosphere System”.

Abstract deadline: Friday 16th February (end of business)
Meeting Date: 8th March 2024, planned start time: 10.30; latest planned end time: 15.30 (UK time).
Location: Burlington House, London. Hybrid option confirmed.

To submit an abstract please fill in the following form:
https://forms.gle/TFtvniB2GvvNyMQS6

As is customary for RAS SDMs, you will have to register for the meeting separately through the RAS. We will send out a reminder when registration has opened. Fellows can register for free both online and in person, for non Fellows the RAS charges £5 online and £15 for in person attendance. If these charges present a barrier for you but you have relevant work to present, please email us at the earliest convenience (there may be travel support available for travel within the UK, especially for students).

About the meeting: Earth’s ionosphere is the boundary between space and the atmosphere. It holds a special importance in models of the Ionosphere-Thermosphere (IT) System because plasma interactions with the magnetic field of the ionosphere become intertwined with the neutral dynamics of the thermosphere and atmosphere. In the context of global whole atmosphere models in particular, the IT system builds the top layer and is responsible for holding the information of solar wind-magnetosphere-ionosphere interactions. At high latitudes, the IT dynamics are driven by the solar wind and magnetospheric responses to solar wind driving, whereas at mid to low latitudes, the electric dynamo interactions and tides dominate. Modelling these interactions and dynamics is challenging, but important to the provision of the boundary conditions for modelling the entire atmosphere. These challenges are compounded by limited observations of the IT system.
The dynamics of the solar wind results in a varying degree of activity in the ionosphere, especially at high- to mid-latitudes. During a geomagnetic storm for example, the energy input into the mesosphere and thermosphere is much higher than during quiet times, which changes atmospheric composition in those regions. It is important to capture these dynamics to advance models for space and/or terrestrial weather and climate purposes. This comes with great challenges due to the varying observations available. The thermosphere, for example, is difficult to measure in-situ due to orbital constraints, and ground-based observations can be sparse due to geographical constraints and lack of vertical resolution. Furthermore, scale-sizes and cadences of observations vary drastically. This makes it difficult to infer physical interactions and build global empirical models, and so challenges model validation efforts.
The aim of this discussion meeting is to bring together modellers and observers of the IT system and the atmosphere, as well as researchers interested in advancing our modelling capabilities, to discuss recent scientific findings, modelling advances and future plans.

Confirmed invited speakers: Tomoko Matsuo and Juha Vierinen

More information on the meeting can be found here:
https://ras.ac.uk/events-and-meetings/ras-meetings/meeting-challenges-limited-observations-global-modelling

Many thanks,
Maria - on behalf of the organisers:

Maria-Theresia Walach (Lancaster University), Mai Mai Lam (British Antarctic Survey), David R. Themens (Birmingham University), Anasuya Aruliah (University College London) and Andrew Kavanagh (British Antarctic Survey)
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Maria-Theresia Walach (she/her)
STFC Ernest Rutherford Fellow
Space and Planetary Physics | Lancaster University | Lancaster | LA1 4YB | UK

Institutional Website<https://www.lancaster.ac.uk/physics/about-us/people/maria-theresia-walach> | Personal Website<https://mtwalach.github.io> | Twitter: @maria_walach | How to pronounce my name<https://name.pn/maria-theresia-walach>

Award Lecture<https://www.britishscienceassociation.org/news/award-lectures-british-science-festival-2022> Winner of the British Science Association 2022

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