CEDAR email: CEDAR/GEM Session: Effects of radiation belt particle precipitation on the atmosphere

[Hanli Liu]

Dear Colleagues,

We would like to invite your participation in the joint CEDAR/GEM Session:
Effects of radiation belt particle precipitation on the atmosphere:

Energetic electron precipitation (EEP) is one of the key loss processes
responsible for depletion of the radiation belts and is an important source
of energy and ionization for Earth's atmosphere. Precipitation from the
radiation belts into the atmosphere changes the chemical composition from
the stratosphere to the mesosphere and lower thermosphere. By dissociation,
dissociative ionization, and ionization of major atmospheric species, EEP
changes atmospheric nitric oxides (NOx) and hydrogen oxides (HOx), which
serve as a reaction catalyst for large ozone (O3) loss in the stratosphere
and mesosphere. By changing the composition of the atmosphere, EEP can also
indirectly affect the heating and cooling rates in the atmosphere and thus
its dynamics. A comprehensive understanding of EEP characteristics and its
influence on the atmosphere remains elusive because it requires a
synergistic characterization of both radiation belt dynamics and
atmospheric responses.

In this session we will cover how EEP of radiation belt particles affects
the atmospheric system, in terms of energy input, transport processes in
the atmosphere, as well as the direct and indirect effects on the
atmospheric chemistry and dynamics. We will encourage talks that address
the inputs to the system and make progress in atmospheric modeling
including the EEP effects.

Session URL: https://cedarscience.org/workshop/2025-workshop-cedarrb-sos

The session is scheduled for 10am--12pm on Tuesday June 24, 2024. If you
would like to contribute to the session, please contact one of the
conveners.

We look forward to seeing you next month during the workshop!

Hanli Liu (liuh at ucar.edu)

on behalf of the Conveners
Harriet George (harriet.George at lasp.colorado.edu)
Adam Michael (adam.michael at jhuapl.edu)
Man Hua (manhua at g.ucla.edu)
Luisa Capannolo (luisacap at bu.edu)
Josh Pettit (joshua.m.pettit at nasa.gov)
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