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<p>Please join us for the workshop: <font size="4">Cross-Scale
Electrodynamics Observational Requirements</font></p>
<p>The agenda still has room for additional submissions but we would
of course like to have sufficient time for open discussion.</p>
<p><br>
</p>
<p>Thursday June 23, 2022<br>
</p>
<p>Agenda:</p>
10:00-10:10 Bill Bristow Introduction<br>
10:10-10:25 Eric Donovan (Zoom) The need for better
resolution in convection measurements<br>
10:25-10:40 Sheng Cheng Observational
requirements for modeling multi-scale disturbances during
geomagnetically active times<br>
10:40-10:55 Josh Semeter Maximizing the science
return from optical imaging<br>
10:55-11:10 Don Hampton Resolving detailed
auroral electron characteristics from ground-based optics: successes
and limitations.<br>
11:10-11:25 Michael Madelaire The Elecrojet Zeeman
Imaging Explorer (EZIE) mission<br>
11:25-12:00 TBD Additional
Submissions and Discussion<br>
<p><br>
Conveners:<br>
Bill Bristow, Simon Shepherd, Mike Ruohoniemi, Larry Lyons, Yue
Deng, Cheng Sheng<br>
</p>
<p>Description:<br>
This workshop will focus on the science and observational
requirements related to the crossscale<br>
coupling of Magnetosphere-Ionosphere-Thermosphere (M-I-T)
processes. Our goal will<br>
be to bring together M-I-T researchers who use observations in
their work with instrument developers<br>
to discuss the observations and technical capabilities that are
needed to push the science<br>
forward. Modelers and data analysts are encouraged to discuss how
observations are used<br>
currently and what additional observations would enhance their
science. Instrument developers<br>
can present ideas for new instrumentation or advancements for
existing systems.<br>
</p>
<p>Justification:<br>
The electrodynamics of the M-I-T region exhibit coupling on scales
that range from kilometers<br>
to many thousands of kilometers. At the lower end of this range,
auroral arcs have widths on the<br>
order of a kilometer or less and connect to the substorm onsets,
which have the scale on the<br>
order of the width of the magnetotail. The related ionospheric
effects couple to the neutral atmosphere<br>
through heating that occurs on the scale of the arcs over regions
as large as the auroral<br>
oval, generating waves that carry and deposit energy over
distances of thousands of kilometers.<br>
Variability over a wide range of spatial and temporal dimensions
is known to greatly impact energy<br>
flow through the M-I-T regions and Joule heating. The existing
observational infrastructure<br>
can address some fraction of the spectrum of scales with varying
degrees of coverage in time<br>
and space. Future investment in infrastructure should be focused
on areas that have the most<br>
potential for advancing geospace science. By connecting the people
who use observations with<br>
those who generate them, we can guide those investments.<br>
</p>
<p>Related CEDAR Thrusts:<br>
This workshop directly addresses Strategic Thrust #4 - Develop
Observational and Instrumentation<br>
Strategies for Geospace System Studies, and ties to Thrusts #1,
#2, and #3.<br>
</p>
<p>Keywords:<br>
Cross-scale coupling, system science, electrodynamics,
instrumentation, modeling<br>
</p>
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