Wind vane on the top of an early 20th century lighthouse. Image by Konstantinos Kourtidis, distributed by EGU under a Creative Commons License. Imaggeo is the online open access geosciences image repository of the European Geosciences Union. Every geoscientist who is an amateur photographer (but also other people) can submit their images to this repository. Being open access, it can be used by sci ...[Read More]
Imaggeo on Mondays: Napoli and Vesuvio
The volcano Vesuvio, Napoli in the foreground, view from Castel Sant’Elmo. Image by Martin Mergili, distributed by EGU under a Creative Commons License. Imaggeo is the online open access geosciences image repository of the European Geosciences Union. Every geoscientist who is an amateur photographer (but also other people) can submit their images to this repository. Being open access, it can ...[Read More]
Imaggeo on Mondays: Entangled
South auroral oval and polar rain simulated in laboratory using the Planeterrella experiment (J. Lilensten et al., UJF/CNRS, Grenoble, France, online). The Planeterrella was redesigned after K. Birkeland’s original terrella experiments, which in the 1900s helped him unveil the mechanisms at the origin of polar aurorae. A magnetised aluminium sphere is placed in a vacuum chamber. An electric ...[Read More]
Imaggeo on Mondays: Damavand Volcano
Damavand Volcano, Iran. A nice cap cloud can be seen at the top of the mountain. Cap cloud is an orographic cloud that is formed over a mountain peak, formed by the cooling and condensation of moist air climbing up and over the peak. Cap clouds appear to remain stationary. Image by Mostafa Ganjian, distributed by EGU under a Creative Commons License. Commentary by Konstantinos Kourtidis. Imaggeo i ...[Read More]