This month we have a special edition of our Geosciences column with two pieces on planetary science written by external contributors. The first article, published today, focuses on Martian water while the second, to be published tomorrow, examines the interior structure of the Moon. If you’d like to contribute to GeoLog, please contact EGU’s Media …[Read More]
Regular Features
Imaggeo on Mondays: Sundogs in Alaska
The northern part of the US state of Alaska is tundra, an area where freezing-cold temperatures hinder tree growth. The result is an unobstructed view of the rising or setting sun that allows photographers to beautifully capture our star. It was in this treeless area that Yongwon Kim, a researcher from the University of Alaska …[Read More]
Imaggeo on Mondays: Frozen river meets the sea
This image shows part of the frozen delta of the Siberian River Lena. Thomas Ernsdorf, a researcher at the Department of Environmental Meteorology, University of Trier in Germany, took this photo during a Russian-German expedition to the Laptev Sea, the largest ice factory of the Arctic Ocean, in April 2008. “The main goal of the …[Read More]
Imaggeo on Mondays: Sky-high dancing lights
This photo, taken in early 2011 at Murphy Dome, a mountain in Fairbanks North Star Borough in the US state of Alaska, shows a beautiful natural phenomena known as aurora.Auroras, also called northern lights in the Northern Hemisphere, are stunning light displays visible mainly at high latitudes. There, it is easier for energetic particles from …[Read More]
Imaggeo on Mondays: Volcanic twilight
Mount Etna, located in the east coast of Sicily in Italy, is one of the most active volcanos in the world and is home to spectacular eruptions. This photo, taken by Robin Campion from the Université Libre de Bruxelles in Belgium, shows bright-red lava and a smoking scoria cone on the upper east flank of …[Read More]
Imaggeo on Mondays: Lonely Tree
The Lonely tree. Image by Alexandre M. Ramos , distributed by EGU under a Creative Commons licence. The photograph was taken near to Üetliberg in Switzerland. The Üetliberg mountain is close to Zurich and part of the Albis mountain range. Imaggeo is the online open access geosciences image repository of the European Geosciences Union. Every …[Read More]
Imaggeo on Mondays: Forest Fires
Forest Fires. Image by Sandro Makowski, distributed by EGU under a Creative Commons licence. Slash and burn activity in Southern Ecuador. The photo was the taken during field work at the San Francisco valley, a microcatchment in the province of Zamora, south-east of Ecuador. The valley is the study area of the DFG research unit …[Read More]
Geosciences Column: Why are jet streams not good wind energy sources?
Commercial airlines know jet streams well. Planes often hitch a ride on these strong, high-altitude atmospheric winds, which blow from west to east, to fly faster, and they are the reason why long-haul easterly flights (such as those between the US and Europe) are quicker than the corresponding westerly journeys. Scientists are also familiar with …[Read More]
Imaggeo on Mondays: Fog over Forest
Fog over Forest. Image by Konstantinos Kourtidis, distributed by EGU under a Creative Commons License. Fog sweeps over a pine forest in the early morning hours. The image was taken on a winter morning in February 2008. The photo was taken from the window of the photographer’s house in Xanthi, Greece. The fog is of …[Read More]
Imaggeo on Mondays: Rock Fall
Rock Fall. Image by Fausto Guzzetti, distributed by EGU under a Creative Commons licence. The photograph shows a rock fall occurred near Valtopina, Umbria, Central Italy, at an unknown date. Rockfalls are a mass movement hazard. They mostly occur on steep rock faces, with the blocks that fall detaching along an existing weakness. The scale …[Read More]