Imaggeo on Mondays

Imaggeo on Mondays: Science above the Amazon rainforest

Achim Edtbauer April 15, 2019

Science above the Amazon rainforest. Credit: Achim Edtbauer (distributed via imaggeo.egu.eu).

The color and symmetry of the Amazon Tall Tower Observatory (ATTO) sticks out against the endless green of the rainforest. Built in a remote and pristine location, the ATTO tower is the tallest construction in South America. In a joint Brazilian-German project, atmospheric scientists aim to unravel the interaction of pristine rainforest with the atmosphere. With its height of 325 meters, the ATTO ...[Read More]

Imaggeo on Mondays: Double strombolian explosions at Mt. Yasur volcano

Jean-Guillaume Feignon April 1, 2019

Double strombolian explosions at Mt. Yasur volcano, Vanuatu (2011). Credit: Jean-Guillaume Feignon (distributed via imaggeo.egu.eu)

The Yasur volcano located in Vanuatu archipelago is permanently active since its discovery in 1774 by Cpt. James Cook. Its activity consists mainly in moderate regular strombolian explosions within the crater. But sometimes, more powerful explosions throw ash and bombs beyond the crater rim and may represent a hazard for tourists and people living next to the volcano. Otherwise, the Mt Yasur displ ...[Read More]

Imaggeo on Mondays: High above the top of Europe

Julien Seguinot March 25, 2019

High above the top of Europe. Credit: Julien Seguinot (distributed via imaggeo.egu.eu)

Sentinel-2B imaged the highest mountains of western Europe, just the moment an airplane was about to fly over the granite peaks of Grandes Jorasses and cross the border from France to Italy. The passengers on the right side of the plane must have enjoyed a spectacular view on Mont Blanc, just nine kilometers away to the south-west, and Mer de Glace, the longest glacier in France flowing down from ...[Read More]

Imaggeo on Mondays: Northern lights in northern Norway

Rita Nogherotto March 18, 2019

Northern lights in northern Norway. Credit: Rita Nogherotto (distributed via imaggeo.egu.eu)

Northern lights in Tromsø, displaying the collisions between electrically charged particles from the sun which penetrate the earth’s magnetic shield and strike atoms and molecules in our atmosphere. Collisions excite the atoms causing electrons to move to higher-energy orbits, further away from the nucleus. When electrons move back to lower-energy orbits, they release particles of light call ...[Read More]