Comparison of Modeled and Observed Scintillation Around a Polar Cap Patch
Abstract
The high-latitude ionosphere is dynamic and contains plasma structures on a variety of scales. Small-scale structures contribute to radio wave scintillation, but due to the complex nature of instability mechanisms and cross-scale coupling, it is challenging to predict exactly when scintillation-causing structures will occur. We seek to understand the relationship between radio scintillation observed on the ground and plasma structure and dynamics in the ionosphere. We simulate radio scintillation using the Satellite-beacon Ionospheric-scintillation Global Model of the upper Atmosphere (SIGMA) and the Geospace Environment Model of Ion-Neutral Interactions (GEMINI) based on realistic ionospheric conditions measured by the Resolute Bay Incoherent Scatter Radars (RISR). The characteristics of the simulated scintillation are then compared with scintillation measurements made by Canadian High Arctic Ionospheric Network (CHAIN) and Coherent Electromagnetic Radio Tomography (CERTO) receivers throughout northern Canada.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2019
- Bibcode:
- 2019AGUFMSA43C3224L
- Keywords:
-
- 2427 Ionosphere/atmosphere interactions;
- IONOSPHERE;
- 2435 Ionospheric disturbances;
- IONOSPHERE;
- 2736 Magnetosphere/ionosphere interactions;
- MAGNETOSPHERIC PHYSICS;
- 2794 Instruments and techniques;
- MAGNETOSPHERIC PHYSICS