GeoLog

Regular Features

Imaggeo on Mondays: Seeing double

On 6 September 2009, monsoon clouds had built up throughout the day over the Donggi Cona lake in central China. Janneke IJmker, now a researcher at Deltares in the Netherlands, was doing fieldwork there as part of her PhD at RWTH Aachen University in Germany. By dinner time, the sun shone on raindrops from the clouds producing a magnificent double rainbow over the lake, which IJmker captured with ...[Read More]

Photo competition at the EGU 2012 General Assembly

If you are pre-registered for the 2012 General Assembly (Vienna, April 22-27), we invite you to submit photos to our annual photo competition. Winners receive a free registration to next year’s General Assembly! The third edition of the EGU photo competition is now open. Until 10 March, every pre-registered participant of the General Assembly can submit up to two photos on any broad theme related ...[Read More]

Imaggeo on Mondays: Serene landscape, active volcano

This image, captured in Chile by Lilli Freda from Italy’s Istituto Nazionale di Geofisica e Vulcanologia, depicts a cloudless sky, a calm blue lake (Llanquihué), and a picture-perfect mountain with a snow-covered top. But the serenity of the landscape is only apparent: the triangular structure in the background is in fact the very active and explosive Osorno volcano. “Osorno is a 2652-m-high strat ...[Read More]

Imaggeo on Mondays: Orange anvils

The anvils in this picture are not heavy steel or iron blocks but rather soft clouds coloured orange by the setting sun. The term is used to describe the upper part of a cumulonimbus or thunderstorm cloud that tends to spread out in an anvil shape as warm air bumps up against the bottom of the stratosphere (the atmospheric layer between 15-50 kilometres height). Katja Weigel, a researcher at the I ...[Read More]