EGU Blogs

5017 search results for "6"

CR
Cryospheric Sciences

Image of the Week – Of comparing oranges and apples in the sea-ice context

October 27, 2017
Image of the Week – Of comparing oranges and apples in the sea-ice context

In the last fifty years, models and observations have enabled us to better understand sea-ice processes. On the one hand, global climate models have been developed, accounting for the sea-ice component in the climate system. On the other hand, satellite instruments have been developed to monitor the “real” sea-ice evolution. These satellite observations are often used to evaluate climate models. H ...[Read More]

GM
Geomorphology

Time to travel – the ERASMUS program turns 30 this year

October 27, 2017
Time to travel – the ERASMUS program turns 30 this year

The mobility program of the European Union, named after Erasmus of Rotterdam who studied in different places all over Europe, turns 30 this year. I wanted to take this opportunity to promote this great possibility for gathering international experience and getting insights into the teaching and research skills of our European colleagues. The ERASMUS program, named ERASMUS+ since 2014, is most famo ...[Read More]

GeoLog

GeoSciences Column: Forests in flux – log-jams in the Amazon

October 25, 2017
GeoSciences Column: Forests in flux – log-jams in the Amazon

Collapsing dams are a staple of disaster films, but the form that these take in natural systems is also surprisingly varied. Streams and rivers can be blocked by a range of rapid and gradual inputs. One of the lesser-known causes of stream blockage is through the accumulation of large woody debris – tree trunks and large branches – to form a log jam. The impact of these jams on river geomorphology ...[Read More]

GD
Geodynamics

Going with the toroidal mantle flow

October 25, 2017
Going with the toroidal mantle flow

Subduction zones host one of the most complex and fascinating tectonic systems on the planet. Numerical models by Király and colleagues recently published in Earth and Planetary Science Letters reveal that the strength of the toroidal flow depends on the mantle viscosity and the magnitude of the slab pull force while the characteristic size of the toroidal cells mainly depends on the size of the c ...[Read More]

GeoLog

EGU2018: Financial support to attend the General Assembly

October 24, 2017
EGU2018: Financial support to attend the General Assembly

The EGU is committed to promoting the participation of both early career scientists and established researchers from low and middle-income countries who wish to present their work at the EGU General Assembly. In order to encourage participation of scientists from both these groups, a limited amount of the overall budget of the EGU General Assembly is reserved to provide financial support to those ...[Read More]

GeoLog

Imaggeo on Mondays: Ice forming on Chesapeake Bay

October 23, 2017
Imaggeo on Mondays: Ice forming on Chesapeake Bay

Sandwiched between the U.S states of Mayland, Delaware, Pennsylvania, New York State, the District of Columbia and Virginia, lies Chesapeake Bay, the largest estuary in North America. It is of huge ecological importance: “the bay, its rivers, wetlands and forests provide homes, food and protection for countless animals and plants”, says the Chesapeake Bay Program. Up to 150 major rivers and stream ...[Read More]

Geology for Global Development

Jesse Zondervan’s #GfGDPicks (Oct 2017): Tsunami risk in Geneva, storms in Mumbai, floating runways in Fiji, a river with legal rights, #SciComm

October 23, 2017
Jesse Zondervan’s #GfGDPicks (Oct 2017): Tsunami risk in Geneva, storms in Mumbai, floating runways in Fiji, a river with legal rights, #SciComm

Each month, Jesse Zondervan picks his favourite posts from geoscience and development blogs/news, relevant to the work and interests of  Geology for Global Development . Here’s a round-up of Jesse’s selections for the past two weeks: If you thought we were safe from Tsunamis in Europe, think again. I was surprised to find out Geneva experienced a Tsunami in 563 triggered by a mudslide. On a simila ...[Read More]

GeoLog

GeoTalk: Hellishly hot period contributed to one of the most catastrophic mass extinctions of Earth’s history

October 20, 2017
GeoTalk: Hellishly hot period contributed to one of the most catastrophic mass extinctions of Earth’s history

Geotalk is a regular feature highlighting early career researchers and their work. Following the EGU General Assembly, we spoke to Yadong Sun, the winner of a 2017 Arne Richter Award for Outstanding Early Career Scientists, about his work on understanding mass-extinctions. Using a unique combination of sedimentological, palaeontological and geochemical techniques Yadong was able to identify some o ...[Read More]

CR
Cryospheric Sciences

Image of the Week — Think ‘tank’: oceanography in a rotating pool

October 20, 2017
Image of the Week — Think ‘tank’: oceanography in a rotating pool

To study how the ocean behaves in the glacial fjords of Antarctica and Greenland, we normally have to go there on big icebreaker campaigns. Or we rely on modelling results, especially so to determine what happens when the wind or ocean properties change. But there is also a third option that we tend to forget about: we can recreate the ocean in a lab. This is exactly what our Bergen-Gothenburg tea ...[Read More]

GD
Geodynamics

Planting seeds of deformation in numerical models

October 18, 2017
Planting seeds of deformation in numerical models

The Geodynamics 101 series serves to showcase the diversity of research topics and methods in the geodynamics community in an understandable manner. We welcome all researchers – PhD students to Professors – to introduce their area of expertise in a lighthearted, entertaining manner and touch upon some of the outstanding questions and problems related to their fields. This month we continue the con ...[Read More]