[GEM] THE GEM MESSENGER, Volume 28, Number 11

Fri Mar 30 09:07:56 PDT 2018

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     THE GEM MESSENGER
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Volume 28, Number 11
Mar.30,2018

Announcement submission website: http://aten.igpp.ucla.edu/gem/messenger_form/

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Table of Contents

1. New GEM Focus Groups in 2018

2. Joint Dipolarization - Substorm Sessions at GEM 2018

3. 27th April: 'System-Scale Data Analysis to Resolve Thermospheric Joule Heating' Workshop: Announcement of Science Programme

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1. New GEM Focus Groups in 2018
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From: Jacob Bortnik on behalf of the GEM steering committee (jbortnik at gmail.com)

The GEM summer workshop (17-23 June 2018, Santa Fe, NM) is rapidly approaching and planning is well underway for an exciting meeting.  In the next few weeks, Focus Group leaders will begin to advertise their respective sessions and solicit your contributions for talks and posters, and I would encourage you to make a submission.  

With a renewed emphasis on workshop-style sessions, some Focus Groups leaders may decrease the role of formal talks, but increase opportunities for showing slides in the context of a broader discussion.  As focus group sessions are being formulated, I would encourage you to reach out and work with your FG leaders to help build great workshop-style sessions, particularly if you have any interesting results or ideas that might shape the way a particular session gets organized.

The list of current Focus Groups can be found on the GEM Wiki (http://aten.igpp.ucla.edu/gemwiki/index.php/GEM_Focus_Groups), and starting from the 2018 GEM summer workshop, two new Focus Groups have been added to the list, those being:

1. Magnetic Reconnection in the Age of the Heliophysics System Observatory (Duration: 2018 - 2022; Co-chairs: Rick Wilder, Shan Wang, Michael Shay, and Anton Artemyev; Research Area: Global System Modeling)

2. Interhemispheric Approaches to Understand M-I Coupling (IHMIC) (Duration: 2018 - 2022; Co-chairs: Hyomin Kim, Robert Lysak, and Tomoko Matsuo; Research Areas: Inner Magnetosphere, Magnetosphere Ionosphere Coupling, Global System Modeling) 

If you have not done so yet, I would encourage you to register and book your accommodation using the workshop website (http://www.cpe.vt.edu/gem/), and do please bear in mind the CEDAR/GEM overlap day on Saturday, June 24, 2018 when making your travel plans.

We look forward to seeing you all in Santa Fe in June!

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2. Joint Dipolarization - Substorm Sessions at GEM 2018
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From: Kyle Murphy (kyle.r.murphy at nasa.gov)

The “Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere” and “Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms” GEM Focus Groups will have two joint sessions at GEM 2018. The focus of the sessions is to compare and contrast the effects of storm-time substorms, isolated substorms, and steady magnetospheric convection (SMC) on the inner magnetosphere. Four challenge events have been selected to study in detail: (1) an SMC event between 2018 April 24-28, storm time substorms on (2) 2016-09-04 ~7:20 UT and (3) 2016-09-27 ~04:30 UT, and (4) an isolated substorm on 2017-02-02 ~4 UT. An overview of the events can be found at goo.gl/zCeiAa. 

We invite participation from the community to analyze, compare, and contrast different aspects of these events from both a modelling and data perspective for discussion at GEM in order to understand how different modes of the tail affect the inner magnetosphere. This includes, for instance, the intensity and depth of injections, auroral activations, wave activity, and the effect on/dynamics of the outer radiation belt. 

Please email Kyle Murphy at kyle.r.murphy at nasa.gov if you would like to participate in either analysis or discussion during the joint sessions.  

Thank you, 

Toshi Nishimura, Kyle Murphy, Emma Spanswick, Jian Yang, Christine Gabrielse, Matina Gkioulidou, Slava Merkin, Drew Turner, David Malaspina 

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3. 27th April: 'System-Scale Data Analysis to Resolve Thermospheric Joule Heating' Workshop: Announcement of Science Programme
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From: Robert Shore, Anasuya Aruliah, John Coxon, Liz Tindale (robore at bas.ac.uk)

Dear colleagues,

We present the science programme for the 1-day workshop ‘System-Scale Data Analysis to Resolve Thermospheric Joule Heating’, happening at the British Antarctic Survey on Friday 27th April.  The event is sponsored by the Royal Astronomical Society.

Programme: 
09:00 – 09:25	Registration.
09:25 – 09:30	Opening address.
09:30 – 10:15	Keynote 
    -- Brian Anderson: On Multi-Scale Assessment of Ionospheric Electromagnetic Energy Input
10:15 – 11:15	Session 1: Seasons and Solar Cycles
    -- Sandra Chapman: Reproducible aspects of the climate of space weather over the last five solar cycles
    -- Colin Forsyth: Seasonal and temporal variations of field-aligned currents and ground magnetic deflections during substorms
11:15 – 12:00	Posters and refreshments
12:00 – 13:00	Session 2: Scale-Coupling in Space and Time
    -- Daniel Whiter: Quantifying the effects of fine scale electric fields on Joule heating
    -- Maria-Theresia Walach: Characterising and understanding temporal variability in ionospheric flows using SuperDARN data
13:00 – 14:00	Break for lunch.
14:00 – 15:15	Poster Session, refreshments, discussion topic suggestions
15:15 – 16:45	Session 3: Magnetosphere-Ionosphere Coupling from Low-Earth Orbit
    -- Steve Milan: Linear and non-linear dimensionality reduction techniques applied to AMPERE observations of field-aligned currents
    -- Karl. M. Laundal: An empirical model of horizontal ionospheric currents from magnetic field measurements at low Earth orbit
    -- Delores Knipp: Poynting Flux Calculated along DMSP F15 orbits
16:45 – 17:30	Discussion Session
17:30	End of official meeting activities

If you wish to attend, we kindly ask that you preregister on the following site: https://www.eventbrite.co.uk/e/system-scale-data-analysis-to-resolve-thermospheric-joule-heating-tickets-42453674082. Registration is open until 23rd April.  The registration site also has practical details for attendees, including hotel information, and travel advice for getting to the British Antarctic Survey.  Note that financial support is available for attending postgraduate students.

The programme of oral presentations is now finalised, but we are accepting submission of poster abstracts until the close of registration on 23rd April – please submit your poster abstracts here: https://goo.gl/forms/HWxTUEmG6XNge0LV2. The abstract submission form also contains some additional practical advice for how to focus your contributions.

The list of poster presentations to date is: 
-- A probabilistic model of ground-based ultra-low frequency waves in Earth’s magnetosphere, parameterised by solar wind properties (Sarah Bentley)
-- The climatological case versus short scale variability -  The impact of thermospheric neutrals (Daniel Billett)
-- Statistical evidence for intensification of Regions 1 and 2 Birkeland currents after substorm onset (John Coxon)
-- Contributions to observations on MIT coupling by the ESA missions Swarm and GOCE (Eelco Doornbos)
-- Quantifying the interaction of the neutral atmosphere and the ionosphere at high-latitudes during polar darkness (Gareth Dorrian)
-- Dynamical Networks Characterization of Space Weather Events (Lauren Orr)
-- The contribution to the variability of polar ionospheric equivalent currents from different components of the interplanetary magnetic field – an EOF approach (Robert Shore)

If you have any queries please contact robore at bas.ac.uk

We look forward to seeing you there,
Rob Shore
Anasuya Aruliah
John Coxon
Liz Tindale

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The Geospace Environment Modeling (GEM) program is sponsored by the Division of Atmospheric and Geospace Sciences (AGS) of the National Science Foundation (NSF).

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