EGU24-5357, updated on 08 Mar 2024
https://doi.org/10.5194/egusphere-egu24-5357
EGU General Assembly 2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Utilising Heliospheric Images for Space Weather Prediction: A Data Assimilation Strategy

Tanja Amerstorfer1, Jackie A. Davies2, David Barnes2, Maike Bauer1, Justin LeLouëdec1, Eva Weiler1, and Christian Möstl1
Tanja Amerstorfer et al.
  • 1GeoSphere Austria, Austrian Space Weather Office, Graz, Austria (tanja.amerstorfer@geosphere.at)
  • 2RAL Space, Rutherford Appleton Laboratory, Didcot, UK

The STEREO mission has paved the way for the forthcoming Vigil mission, set to launch around 2030. Based on the extensive data archives from STEREO's wide-angle cameras, the heliospheric imagers (HI), we aim to assess the suitability of these data for real-time space weather prediction.
This study focuses on modeling the evolution of coronal mass ejections (CMEs) as they progress towards Earth, employing STEREO-A and STEREO-B observations from Vigil's future vantage point, the L5 point of the Sun-Earth system, with the drag-based ensemble model ELEvoHI.
Our investigation aims to determine to what extent incorporating additional HI data (as it would be received in real-time) improves the forecasting accuracy and its impact on the prediction lead time.

How to cite: Amerstorfer, T., Davies, J. A., Barnes, D., Bauer, M., LeLouëdec, J., Weiler, E., and Möstl, C.: Utilising Heliospheric Images for Space Weather Prediction: A Data Assimilation Strategy, EGU General Assembly 2024, Vienna, Austria, 14–19 Apr 2024, EGU24-5357, https://doi.org/10.5194/egusphere-egu24-5357, 2024.