EGU Blogs

Highlights

CR
Cryospheric Sciences

Image of the Week – The Gap, the Bridge, and the Game-changer

Image of the Week – The Gap, the Bridge, and the Game-changer

The Gap, the Bridge, and the Game-changer are three series of satellites. They carry instruments that measure the microwave radiation emitted by the Earth (called passive microwave instruments), while flying 800 km above our heads at 7,5 km/s. Since the late 1970s, most sea ice properties (concentration, extent, area, velocity, age and more!) have been measured with such passive microwave instrume ...[Read More]

GeoLog

Migrating scientists

Migrating scientists

Scientific research is no doubt enriched by interdisciplinarity and collaborations which cross borders. This, combined with the scarcity of academic positions and the need to further ones horizons by experiencing varied research environments, leads many scientists to relocate (if only on a short term basis) to a country which is not their own.  In today’s post, freelance science writer Rober ...[Read More]

Geochemistry, Mineralogy, Petrology & Volcanology

Building a lava dome: one block at a time

Building a lava dome: one block at a time

Lava domes form when lava is extruded from a volcanic vent, but is too viscous to flow far away. Think of thick treacle that does not flow as easily as runny honey, and so when it is extruded, it forms a “lava pile” around the vent. Lava domes commonly form within the crater of a larger volcano (e.g. Mt. St. Helens), but can also stand alone or form part of a “dome complex”. A lava dome can take o ...[Read More]

GeoLog

Imaggeo on Mondays: Robberg Peninsula – a home of seals

Imaggeo on Mondays: Robberg Peninsula – a home of seals

This picture is taken from the Robberg Peninsula, one of the most beautiful places, and definitely one of my favorite places in South Africa. The Peninsula forms the Robberg Nature Reserve and is situated close to the Plettenberg Bay on the picturesque Garden Route. “Rob” in Dutch means “seal”, so the name of the Peninsula is translated as “the seal mountain”. T ...[Read More]

NH
Natural Hazards

“Twenty or more Leagues Under the Sea”: A journey to understand submarine canyons

“Twenty or more Leagues Under the Sea”: A journey to understand submarine canyons

As NhET, we have the pleasure to have Mauro Agate as our guest and interviewee today. We discuss about submarine canyons and related geo-hazards. Further details will be available at: http://www.sciencedirect.com/science/article/pii/S0967064513002488  for a scientific-oriented audience; or https://www.youtube.com/channel/UCwWErQNoZYpJhhkxPa82x5g for a broader audience.   Dr. Mauro Agate is a ...[Read More]

CR
Cryospheric Sciences

Image of the week – How hard can it be to melt a pile of ice?!

Image of the week – How hard can it be to melt a pile of ice?!

Snow, sub-zero temperatures for several days, and then back to long grey days of near-constant rain. A normal winter week in Gothenburg, south-west Sweden. Yet as I walk home in the evening, I can’t help but notice that piles of ice have survived. Using the equations that I normally need to investigate the demise of Greenland glaciers, I want to know: how hard can it be to melt this pile of ice by ...[Read More]

GM
Geomorphology

Do glaciers really do all the work? Perhaps not.

Kerry Leith from the Engineering Geology Department at the ETH Zürich set up a post on their latest publication and the backstory behind it. As they announced on their own website (www.stressdriven.com) review comments ranged from “mediocre or poor” to “[…] provocative, potentially revolutionary (if correct) analysis”. It surely contains interesting thoughts. – ...[Read More]

GeoLog

EGU 2018: How to make the most of your time at the General Assembly without breaking the bank

EGU 2018: How to make the most of your time at the General Assembly without breaking the bank

Attending a conference is not cheap, even if you’ve been lucky enough to secure some funds to help with travel, accommodation and/or registration costs. However, with a little insider knowledge from those who’ve attended the General Assembly many times before, it is possible to have a (scientifically) rewarding week in Vienna, without breaking the bank. Before you get there A sure way to save a fe ...[Read More]

TS
Tectonics and Structural Geology

Paris: From quarry to catacombs

Paris: From quarry to catacombs

Paris, 2000 ya. Claude is sweating all over. It’s mid-July and the sun is burning on his skin. With his hammer and shovel he is digging up grey and white stones. The faults and fractures in the rock help him to get the rocks out easily. But still, it’s hot and humid and his shift isn’t over yet. Luckily he can’t complain about the view. Lutetia, one of the new Roman settlements lies right in front ...[Read More]