CEDAR email: Call for Abstracts, AGU26 Session SA018: Observational and modeling studies of ionospheric irregularities and scintillation

Mrak, Sebastijan Sebastijan.Mrak at jhuapl.edu
Mon Jul 27 13:49:48 MDT 2026


Dear colleagues,

We are cordially inviting you to participate in this year’s AGU SA018 session on ionospheric irregularities and scintillation. We are again encouraging early-career and student participants who want to present their work in the oral session.  Please consider submitting your abstract by the submission deadline, July 31, 2024.

Session description:
Ionospheric irregularities are the source of scintillation, defined as rapid random fluctuations in the amplitude and phase of radio signals that adversely affect transionospheric communication and navigation systems. Scintillations are the most severe at magnetic low- and high-latitudes; however, recent reports have demonstrated robust scintillation in midlatitude regions, as well. These irregularities with characteristic scales ranging from 100s of meters to 10s ok km in conjunction with larger-scale density perturbations impact radio and radar systems. The generation mechanisms producing these ionospheric density irregularities are controlled by the background density, electric fields, plasma drift, neutral winds, and particle precipitation. Understanding the state of the system controlling the instability onset, growth, and saturation is paramount for forecasting and mitigation strategies. In this session, we invite both modeling and observational studies pertinent to advancing our understanding of the role of various processes for the generation of ionospheric irregularities and their propagation impacts.
See you in Washington, DC.

Sebastijan Mrak
Matt Zettergren
Romina Nikoukar
Waqar Younas
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