EGU22-6336, updated on 28 Mar 2022
EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Swarm-derived indices of geomagnetic activity

Constantinos Papadimitriou1,2,3, Georgios Balasis1, Adamantia Zoe Boutsi1,2, Alexandra Antonopoulou1, Georgia Moutsiana2, Ioannis A. Daglis2,4, Omiros Giannakis1, Giuseppe Consolini5, Jesper Gjerloev6, and Lorenzo Trenchi7
Constantinos Papadimitriou et al.
  • 1National Observatory of Athens, IAASARS, Athens, Greece (
  • 2Department of Physics, National \& Kapodistrian University of Athens, Athens, Greece
  • 3Space Applications \& Research Consultancy, SPARC G.P., Athens, Greece
  • 4Hellenic Space Center, Athens, Greece
  • 5INAF‐Istituto di Astrofisica e Planetologia Spaziali, Rome, Italy
  • 6Johns Hopkins University Applied Physics Laboratory, USA
  • 7ESRIN, European Space Agency, Italy

Ground-based indices, such as the Dst, ap and AE, have been used for decades to describe the interplay of the terrestrial magnetosphere with the solar wind and provide quantifiable indications of the state of geomagnetic activity in general. These indices have been traditionally derived from ground-based observations from magnetometer stations all around the Earth. In the last 7 years though, the highly successful satellite mission Swarm has provided the scientific community with an abundance of high quality magnetic measurements at Low Earth Orbit (LEO), which can be used to produce the space-based counterparts of these indices, such the Swarm-Dst, Swarm-ap and Swarm-AE indices. In this work, we present the first results from this endeavour, with comparisons against traditionally used parameters. We postulate on the possible usefulness of these Swarm-based products for a more accurate monitoring of the dynamics of the magnetosphere and thus, for providing a better diagnosis of space weather conditions.

How to cite: Papadimitriou, C., Balasis, G., Boutsi, A. Z., Antonopoulou, A., Moutsiana, G., Daglis, I. A., Giannakis, O., Consolini, G., Gjerloev, J., and Trenchi, L.: Swarm-derived indices of geomagnetic activity, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-6336,, 2022.