CEDAR email: CEDAR 2022 Session on Cross-Scale Electrodynamics Observations

[Bill Bristow]

Please join us for the workshop: Cross-Scale Electrodynamics 
Observational Requirements

The agenda still has room for additional submissions but we would of 
course like to have sufficient time for open discussion.


Thursday June 23, 2022

Agenda:

10:00-10:10     Bill Bristow                    Introduction
10:10-10:25     Eric Donovan (Zoom)    The need for better resolution in 
convection measurements
10:25-10:40     Sheng Cheng                 Observational requirements 
for modeling multi-scale disturbances during geomagnetically active times
10:40-10:55     Josh Semeter                 Maximizing the science 
return from optical imaging
10:55-11:10     Don Hampton                Resolving detailed auroral 
electron characteristics from ground-based optics: successes and 
limitations.
11:10-11:25     Michael Madelaire         The Elecrojet Zeeman Imaging 
Explorer (EZIE) mission
11:25-12:00    TBD                                Additional Submissions 
and Discussion


Conveners:
Bill Bristow, Simon Shepherd, Mike Ruohoniemi, Larry Lyons, Yue Deng, 
Cheng Sheng

Description:
This workshop will focus on the science and observational requirements 
related to the crossscale
coupling of Magnetosphere-Ionosphere-Thermosphere (M-I-T) processes. Our 
goal will
be to bring together M-I-T researchers who use observations in their 
work with instrument developers
to discuss the observations and technical capabilities that are needed 
to push the science
forward. Modelers and data analysts are encouraged to discuss how 
observations are used
currently and what additional observations would enhance their science. 
Instrument developers
can present ideas for new instrumentation or advancements for existing 
systems.

Justification:
The electrodynamics of the M-I-T region exhibit coupling on scales that 
range from kilometers
to many thousands of kilometers. At the lower end of this range, auroral 
arcs have widths on the
order of a kilometer or less and connect to the substorm onsets, which 
have the scale on the
order of the width of the magnetotail. The related ionospheric effects 
couple to the neutral atmosphere
through heating that occurs on the scale of the arcs over regions as 
large as the auroral
oval, generating waves that carry and deposit energy over distances of 
thousands of kilometers.
Variability over a wide range of spatial and temporal dimensions is 
known to greatly impact energy
flow through the M-I-T regions and Joule heating. The existing 
observational infrastructure
can address some fraction of the spectrum of scales with varying degrees 
of coverage in time
and space. Future investment in infrastructure should be focused on 
areas that have the most
potential for advancing geospace science. By connecting the people who 
use observations with
those who generate them, we can guide those investments.

Related CEDAR Thrusts:
This workshop directly addresses Strategic Thrust #4 - Develop 
Observational and Instrumentation
Strategies for Geospace System Studies, and ties to Thrusts #1, #2, and #3.

Keywords:
Cross-scale coupling, system science, electrodynamics, instrumentation, 
modeling
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