CEDAR email: COSPAR Session: "PSW.3 Preparation for a New Ionospheric Space Weather Scale for Trans-Ionospheric Radio wave Propagation”

[Astrid Maute]

On behalf of the organizing committee we would like to draw your attention to the PSW.3 session “Preparation for a New Ionospheric Space Weather Scale for Trans-ionospheric Radio wave Propagation” at the 45th COSPAR Scientific Assembly that takes place in Busan, South Korea from 13 – 21 July 2024. We kindly invite you to contribute to the session (session description below) and submit an abstract before the deadline February 16, 2024. Submission details you can find here: https://www.cospar2024.org/.

Session Title: Preparation for a new ionospheric space weather scale for trans-ionospheric radio wave propagation

Main goal is to pave the way for defining a new NOAA Ionospheric Space Weather
Scale to augment the current geomagnetic storms (G), solar radiation storms (S), and
radio blackouts (R) Scales. The recommendation for a new “T” scale will target
applications and systems that are impacted by disturbances in trans-ionospheric radio
wave propagation, such as satellite communication, remote sensing radars, and global
Navigation Satellite Systems (GNSS) navigation, positioning, and timing. To reach this
goal, broad international discussion and collaboration is required organized by the
ISWAT G2B-04 activity initiated by COSPAR. In addition, the Coordinated Ionospheric
Study on Scales and Indices (CISSI) established via ISWAT G2B-04 will provide an
excellent data base for comparative studies and related conclusions on indices and their
application potential. The session will include contributions related to how to combine
ground and space-based data sources to maximize data coverage used to drive the
new scale, establishing the relationship between the various indices, validation,
suggestions for defining the thresholds levels for the scale and occurrence rates, and
exploring the inclusion of probabilities. Papers are also encouraged exploring and
identifying user needs, and how a new scale would target different user applications.

Sincerely,
Norbert Jakowski and Tim Fuller-Rowell

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