Imaggeo on Mondays

Imaggeo on Mondays: Atmospheric gravity waves

Laura Roberts-Artal April 10, 2017

Atmospheric gravity waves . Credit: Jorge Magalhaes and Jose da Silva (distributed via imaggeo.egu.eu)

From the tiny vibrations which travel through air, allowing us to hear music, to the mighty waves which traverse oceans and the powerful oscillations which shake the ground back and forth during an earthquake, waves are an intrinsic part of the world around us. As particles vibrate repeatedly, they create an oscillation, which when accompanied by the transfer of energy, creates a wave. The way in ...[Read More]

Imaggeo On Mondays: Halo

Tatiana Matveeva April 3, 2017

Halo . Credit: Tatiana Matveeva (distributed via imaggeo.egu.eu)

One of the main perks of being a geoscientist is that, often, research takes scientists all around the globe to conduct their work. While fieldwork can be hard and challenging it also offers the opportunity to see stunning landscapes and experiencing unusual phenomenon. Aboard the Akademik Tryoshnikov research vessel, while cruising the Kara Sea (part of the Arctic Ocean north of Siberia) Tatiana ...[Read More]

Imaggeo on Mondays: Erosion

Laura Roberts-Artal March 27, 2017

Erosion . Credit: Kevin Norton (distributed via imaggeo.egu.eu)

In mountainous regions precipitation – be that in the form of rain, hail or snow, for example – drives erosion, which means it plays an important part in shaping the way the landscape looks. Precipitation can directly wear away at hillsides and creates streams and rivers, which leave their mark on the scenery by cutting and calving their way through it. Take for instance the hills in the arid coas ...[Read More]

Imaggeo on Mondays: Lava highway in Kanaga Island

Laura Roberts-Artal March 20, 2017

Lava highway in Kanaga Island (Western Aleutians, Alaska). Credit: Mattia Pistone (distributed via imaggeo.egu.eu).

On a rare sunny day, Mattia Pistone (a researcher at the Smithsonian Institution in Washington DC) was able to capture this spectacular shot of Kanaga, a stratovolcano in the remote Western Aleutians, which is usually veiled by thick cloud. The Western Aleutians form a chain of 14 large and 55 small volcanic islands, belonging to one of the most extended volcanic archipelagos on Earth (1900 km), s ...[Read More]