ISSI International Team on "An Exploration of the Valley Region in the Lowlatitude Ionosphere: Response to Forcing from Below and Above and Relevance to Space Weather" https://www.issibern.ch/teams/explorelowlatitude/

Acknowledgement: most of the material is obtained from NASA or ESA are publicly available material. The photos were creating by the team, while the figures are either from their own papers or generated by them.