Biogeosciences

Imaggeo on Mondays: Low tide at Alexandra Fjord

Martin Brummell August 28, 2017

Low tide at Alexandra Fjord . Credit: Martin Brummell (distributed via imaggeo.egu.eu).

Today’s post takes us to the far northern reaches of our planet, to a desert like nothing you’ve seen before. This picture is a view to the north across Alexandra Fjord, on the east coast of Ellesmere Island, in the Canadian High Arctic, with Sphynx island in the middle of the fjord. The south shore of Alexandra Fjord includes a polar oasis, an area of tundra vegetation and relatively mild climati ...[Read More]

June GeoRoundUp: the best of the Earth sciences from around the web

Laura Roberts-Artal June 30, 2017

We take our oceans, a valuable and beautiful resource, for granted. Credit: While the wind blows , Alevtina Evgrafova (distributed via imaggeo.egu.eu).

Drawing inspiration from popular stories on our social media channels, as well as unique and quirky research news, this monthly column aims to bring you the best of the Earth and planetary sciences from around the web. Major Story With June being the month when the world’s oceans are celebrated with World Ocean Day (8th June) and the month when the UN’s Ocean Conference took place, it seemed apt t ...[Read More]

Artificial floods: Restoring the ecological integrity of rivers

Terri Cook May 31, 2017

A local fisherman enjoys a peaceful morning on the Sarine River following an artificial flood. (Credit: Terri Cook)

“You can never step into the same river, for new waters are always flowing on to you.” —Heraclitus of Ephesus Rushing rivers, with their unremitting twists and turns and continuous renewal, are often used as a metaphor for life, but the analogy is just as appropriate for scientific research, I reflected as I walked along the banks of a sparkling, turquoise-blue river in the heart of th ...[Read More]

Imaggeo on Mondays: A lava layer cake

Laura Roberts-Artal May 29, 2017

A lava layer cake flowing . Credit: Timothée Duguet (distributed via imaggeo.egu.eu)

Brekkuselslækur, a small river, carves its way across Iceland’s ancient volcanic landscape. At Hengifoss, Iceland’s third-highest waterfall, it tumbles fiercely down thick, dark layers of lavas erupted from volcanoes some 18 to 2.58 million years ago, during a period of geological time known as the Tertiary. Eruptions are rarely continuous; during hiatuses in the extrusion of lavas, ash is able to ...[Read More]