Ocean Sciences

Imaggeo on Mondays: what corals can tell us about past climate change

Laura Roberts-Artal September 12, 2016

Using Coral as a Proxy of Past Climate . Credit: Isaac Kerlow (distributed via imaggeo.egu.eu)

Reconstructing past climates is a tricky task at the best of times. It requires an ample data set and a good understanding of proxies. Add into the mix some underwater fieldwork and the challenge got a whole lot harder! In today’s Imaggeo on Monday’s post, Isaac Kerlow explains how information locked in corals can tell the story of past climates and how important it is, not only to carry out the r ...[Read More]

Imaggeo on Mondays: Coastal erosion

Laura Roberts-Artal August 15, 2016

Stabilising dune vegetation . Credit: James Terry (distributed via imaggeo.egu.eu)

Coastlines take a battering from stormy seas, gales, windy conditions and every-day wave action. The combined effect of these processes shapes coastal landscapes across the globe. In calm weather, constructive waves deposit materials eroded elsewhere and transported along the coast line via longshore-drift, onto beaches, thus building them up. Terrestrial material, brought to beaches by rivers and ...[Read More]

Methane seeps – oases in the deep Arctic Ocean

Sara Mynott April 20, 2016

Carbonate reef on Vestnesa Ridge. Four sea spiders are crawling around the carbonates and snails are scattered over the seafloor. Credit:CAGE

The deep Arctic Ocean is not known for its wildlife. 1200 metres from the surface, well beyond where light penetrates the water and at temperatures below zero, it it’s a desolate, hostile environment. There are, however, exceptions to this, most notably around seeps in the seafloor that leak methane into the water above. Here, methane is the fuel for life, not sunlight, creating oases in an otherw ...[Read More]

Photo Contest finalists 2016 – who will you vote for?

Sarah Connors April 18, 2016

The selection committee received over 400 photos for this year’s EGU Photo Contest, covering fields across the geosciences. The fantastic finalist photos are below and they are being exhibited in Hall X2 (basement, Brown Level) of the Austria Center Vienna – see for yourself! Do you have a favourite? Vote for it! There is a voting terminal (also in Hall X2), just next to the exhibit. The results w ...[Read More]