GeoLog

EGU Guest blogger

This guest post was contributed by a scientist, student or a professional in the Earth, planetary or space sciences. The EGU blogs welcome guest contributions, so if you've got a great idea for a post or fancy trying your hand at science communication, please contact the blog editor or the EGU Communications Officer to pitch your idea.

GeoPolicy: Europe’s Waste Policy – using Incinerator Bottom Ash and reducing landfill

January 29, 2021
GeoPolicy: Europe’s Waste Policy – using Incinerator Bottom Ash and reducing landfill
Waste Incinerator, Shutterstock.

Although you may not realise it, waste and the circular economy is an important topic for many geoscientists. Our consumption drives the need for resources and sustainable resource extraction, while disposing and reducing this waste requires a wide range of expertise and impacts the environments in which many scientists undertake their research. On a more personal level, understanding what happens ...[Read More]

Imaggeo On Monday: Catching a glimpse of the Mesosphere

January 25, 2021
Imaggeo On Monday: Catching a glimpse of the Mesosphere
Catching a glimpse of the Mesosphere. Credit: Michiel Baatsen (distributed via imaggeo.egu.eu)

In the midst of summer when the sun does not set at high latitudes one can sometimes catch a glimpse of the mesosphere shortly after sunset or before sunrise. These thin veils, known as noctilucent clouds, are the highest known cloud-like structures forming at about 80km above the surface. At this height, they are still lit by the sun and can be seen from lower latitudes many hundreds of kilometer ...[Read More]

Imaggeo On Monday: “Smoking” peaks of the Patagonian batholith

January 18, 2021
Imaggeo On Monday: “Smoking” peaks of the Patagonian batholith
"Smoking" peaks of the Patagonian batholith. Credit: Christoph Mayr (distributed via imaggeo.egu.eu)

The indigenous name of the 3405 meter high Fitz Roy mountain in Patagonia, on the border between Argentina and Chile, is frequently translated as “smoking mountain”. This photo may visually explain an origin of this name. On the day the photo was taken, vortices downwind of the peak drew warmer, humid air from below, forming banner clouds at the leeward site of the Fitz Roy mountain an ...[Read More]

Imaggeo On Monday: The sudden stratospheric warming on February 12, 2018

January 11, 2021
Imaggeo On Monday: The sudden stratospheric warming on February 12, 2018
The sudden stratospheric warming on February 12, 2018. Credit: Daniela Domeisen (distributed via imaggeo.egu.eu)

The image captures an atmospheric extreme event, a so-called sudden stratospheric warming (SSW) that occurred on Feb. 12, 2018. It is visualized through potential vorticity above the North Pole at the 10hPa level (~30km) above the Earth’s surface and consists of a split of the winter polar vortex into two separate vortices that interact with each other. Although the events are not predictable more ...[Read More]