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.

Imaggeo On Monday: Revealing the secrets of the Arctic sky

January 4, 2021
Imaggeo On Monday: Revealing the secrets of the Arctic sky
SRevealing the secrets of Arctic sky. Credit: Konstantina Nakoudi (distributed via imaggeo.egu.eu)

When it is dark over Ny Ålesund, Svalbard, a bright green laser beam can be seen quite often, shooting from the AWIPEV Arctic Research Base observatory towards the sky. This beam belongs to “KARLi” the Koldewey Aerosol Raman Lidar, run by the Alfred Wegener Institute for more than 25 years, which contributes to long-term, atmospheric aerosol measurement records.   With this system ...[Read More]

Imaggeo On Monday: Konsfjorden and Kronebreen glacier

December 28, 2020
Imaggeo On Monday: Konsfjorden and Kronebreen glacier
Konsfjorden and Kronebreen glacier . Credit: Andy Smedley (distributed via imaggeo.egu.eu)

Taken shortly after our departure from Ny-Ålesund after our first “Lost Meteorites” field trial in Greenland testing new equipment that can be used to discover ‘missing’ iron meteorites in Antarctica, the return flight gave incredible views of the surrounding landscape. This photo was taken looking down to the icy waters of Kongsfjorden on the west coast of Svalbard and the ...[Read More]

Imaggeo On Monday: Nature of ice crystals

December 21, 2020
Imaggeo On Monday: Nature of ice crystals
Nature of ice crystals . Credit: Katarzyna Walczak (distributed via imaggeo.egu.eu)

Moisture coming from the ground is freezing at the entrances of small ground pockets, shaping wonderful natural ice crystals, during a very cold and dry winter in Poland in 2019. Description by Katarzyna Walczak, after the description on imaggeo.egu.eu.   Imaggeo is the EGU’s online open access geosciences image repository. All geoscientists (and others) can submit their photographs and video ...[Read More]

Imaggeo On Monday: Ice-coated roots at sunset

December 14, 2020
Imaggeo On Monday: Ice-coated roots at sunset
Ice-coated roots at sunset . Credit: Katja Laute (distributed via imaggeo.egu.eu)

The coating by the ice and the icicles are created through the interplay of wave action and the simultaneous freezing of the water around the exposed tree roots. The reason for the exposed tree roots is increased bank erosion due to a rather unusual circumstance. The combination of the lake not yet being frozen in early winter, and strong winter storms, make it very easy for the waves to erode the ...[Read More]