GeoLog

Imaggeo on Mondays: Decreasing Moon

Bárbara Ferreira January 22, 2018

Decreasing Moon – seen from Hamburg. Credit: Wolfgang Fraedrich, (distributed via imaggeo.egu.eu).

This picture shows the decreasing Moon on May 6, 2015, two days after the full Moon, as viewed from Hamburg, Germany. There are still 96.4% of the lunar front illuminated. The Moon does not glow on its own, but its surface reflects the sunlight. The Sun always illuminates a complete half of our natural satellite, which, in its orbit around our planet, always turns its face (which we see at full Mo ...[Read More]

EGU Photo Contest 2018: Now open for submissions!

Laura Roberts-Artal January 17, 2018

Penitentes in the Andes by Christoph Schmidt (distributed via imaggeo.egu.eu). This photo was taken in the Bolivian Andes at an altitude of around 4400 m. The climatic conditions favour the formation of so-called penitents, i.e. long and pointed remains of a formerly comprehensive snow field.

If you are pre-registered for the 2018 General Assembly (Vienna, 8 – 13 April), you can take part in our annual photo competition! Winners receive a free registration to next year’s General Assembly! The ninth annual EGU photo competition opens on 15 January. Up until 15 February, every participant pre-registered for the General Assembly can submit up three original photos and one moving image on ...[Read More]

Imaggeo on Mondays: Glacier-fed rivers

Laura Roberts-Artal January 15, 2018

Rahpaädno river seen from the Ladebakte mountain. Credit: Jakob Keck (distributed via imaggeo.egu.eu).

A view of the southern edge of the Ladebakte mountain in the Sarek national park in north Sweden. At this place the rivers Rahpajaka and Sarvesjaka meet to form the biggest river of the Sarek national park, the Rahpaädno. The rivers are fed by glaciers and carry a lot of rock material which lead to a distinct sedimentation and a fascinating river delta for which the Sarek park laying west of the K ...[Read More]

Geosciences Column: The hunt for Antarctica’s oldest time capsule

Ruth Amey January 12, 2018

Preparing the ice corer for deployment, EPICA project, Kohnen Station, Dronning Maud Land, Antarctica (Operators: Prof. Dr. Frank Wilhelms and Lorenz Karsten). NB: This image is not related to the study featured in this post . Credit: Hannes Grobe, Alfred Wegener Institute for Polar and Marine Research (distributed via Wikimedia Commons).

The thick packs of ice that pepper high peak of the world’s mountains and stretch far across the poles make an unusual time capsule. As it forms, air bubbles are trapped in the ice, allowing scientists to peer into the composition of the Earth’s atmosphere long ago. Today’s Geosciences Column is brought to you by PhD researcher Ruth Amey, who writes about recently published resea ...[Read More]