CEDAR email: CEDAR Grand Challenge: Redefining Polar Cap Patches

[Alanah Cardenas-O'Toole]

This is the first year of a new CEDAR Grand Challenge: *Redefining Polar
Cap Patches: Understanding High-Latitude Irregularities, and their
implications for the coupled MIT system*.  We will be starting our
community challenge efforts at the 2025 CEDAR-GEM Workshop, where we will be
 hosting workshop sessions that include tutorials, contributed science
talks, and a guided group discussion. The session times are Tuesday
afternoon 13:30-15:30 pm and Wednesday morning 10:00-12:00.



We’re currently soliciting contributions of in-person presentations of
research related to polar cap patches.  This includes theoretical,
observational, and experimental perspectives.  We are especially interested
in talks that introduce new data or modeling resources suitable for
investigating polar cap patches, research that deals with patch generation
and dynamics from the magnetospheric perspective, and interactions between
patches and the broader geospace system.


 Grand Challenge Link:
https://cedarscience.org/workshop/2025-workshop-what-are-polar-cap-patches

Grand Challenge Science Questions:

*Definition of Patches:*
How should we define polar cap patches?
How do we differentiate between polar cap patches and other important
density enhancements, such as polar cap arcs and TIDs?
Is more specific terminology required for polar cap density structures?

*Properties of Patches:*
What are the properties of patches (e.g., generation mechanism, propagation
and decay patterns)?
How are these distinct from other density enhancements in the polar cap?

*Impact of Patches:*
How do patches as observed from different modalities (e.g. ISR, TEC,
in-situ, ASI and SuperDARN) compare to each other?
How do patches impact cross-scale coupling in the ionosphere?
What are the impacts of patches in the M-I-T system?
What are the space weather effects of patches? What is their societal
impact?

Attached is a Google Form for presentation requests. If there are any
troubles accessing this form, please reach out to one of the conveners with
your presentation request.  We look forward to seeing you or your work in
Iowa.


https://docs.google.com/forms/d/e/1FAIpQLSesL-3aPkxZJ0SritnKpZl1VNo7CHJrK78-vCqeHtUaNVufNg/viewform?usp=header




Best regards,

Alanah Cardenas-O’Toole (alanahco at umich.edu)

Yulu Peng (yulupeng at umich.edu)

Ipsita Katual (ipsitakatual96 at gmail.com)

Grace Kwon (grkwon at umich.edu)
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.ucar.edu/pipermail/cedar_email/attachments/20250605/0bd14962/attachment-0001.htm>