EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

20 Years of Cluster Observations: The Magnetopause

Stein Haaland1,2, Hiroshi Hasegawa3, Goetz Paschmann4, Bengt Sonnerup5, and Malcolm Dunlop6
Stein Haaland et al.
  • 1Birkeland Centre for Space Science, University of Bergen, Bergen, Norway
  • 2The University Centre in Svalbard (UNIS), Longyearbyen, Svalbard
  • 3Japan Aerospace Exploration Agency (JAXA), Sagamihara, Japan
  • 4Max-Planck Institute dor extraterrestrial Physics, Garching, Germany
  • 5Dartmouth College, Dartmouth, NH, United States of America
  • 6Rutherford Appleton Laboratory, Chilton, United Kingdom

The terrestrial magnetopause forms the boundary between the solar wind plasma with its embedded interplanetary magnetic field on one side, and the terrestrial magnetosphere, dominated by Earth's dipole field, on the other side. It is therefore a key region for the transfer of mass, momentum, and energy from the solar wind to the magnetosphere. The Cluster mission, comprising a constellation of four spacecraft flying in formation was launched more than 20 years ago to study boundaries in space. During its lifetime, Cluster has provided a wealth of new knowledge about the magnetopause. In this presentation, we give an overview of Cluster-based studies of this boundary, and highlight a selection of interesting results. 

How to cite: Haaland, S., Hasegawa, H., Paschmann, G., Sonnerup, B., and Dunlop, M.: 20 Years of Cluster Observations: The Magnetopause, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-3486,, 2022.