EGU Blogs

Highlights

CL
Climate: Past, Present & Future

Varves – Revealing the past layer by layer

Varves – Revealing the past layer by layer

Name of proxy Varved glacial lake sediments Type of record Sedimentological structures Paleoenvironment Ice marginal lake environments Period of time investigated Last Glacial Termination (LGT, c.21-14 thousands of years (ka)) to present times How do varves work? Proglacial lakes form in front of glaciers and act as sinks for water and sediment flowing from melting ice. Analyses of proglacial lake ...[Read More]

CR
Cryospheric Sciences

Image of the Week – Vibrating Ice Shelf!

Image of the Week – Vibrating Ice Shelf!

If you listen carefully to the Ekström ice shelf in Antarctica, a strange sound can be heard! The sound of a vibrating truck sending sounds waves into the ice. These sound waves are used to “look” through the ice and create a seismic profile of what lies beneath the ice surface. Read on to find out how the technique works and for a special Cryosphere Christmas message! What are we doing with this ...[Read More]

GeoLog

GeoPolicy: Reaching out on Twitter – casually engage with policymakers!

GeoPolicy: Reaching out on Twitter – casually engage with policymakers!

Reaching out to policymakers and sharing your research with them can seem like a daunting task! While there are many formal outlets for engaging with policymakers (such as completing questionnaires, contributing to workshops and participating in paring schemes), there are also more casual methods that can be done sporadically and with less effort. One example of this is engaging with policymakers ...[Read More]

GM
Geomorphology

50% Professorship = More time for family and science

50% Professorship = More time for family and science

Annegret Larsen had the fantastic idea to encourage her colleague Pascal Egli, both from the University of Lausanne, to explore the nature of a shared professorship. Pascal took the chance and interviewed Professor Martin Hoelzle  at the Swiss Geoscience meeting in November 2017. Professor Martin Hoelzle is a Geomorphologist/Glaciologist at University of Fribourg (Switzerland). He is also one of v ...[Read More]

WaterUnderground

Want to contribute to IAHS’ discussion about 23 unsolved problems in hydrology?

Want to contribute to IAHS’ discussion about 23 unsolved problems in hydrology?

Inspired by the famous list of unsolved math problems (hence the header image), the International Association of Hydrological Sciences has an interesting challenge for us all: define 23 unsolved problems in hydrology: The International Commission on Groundwater is going to submit a few problems via the LinkedIn forum. A few of us at Water Underground are going to put our thinking caps on and submi ...[Read More]

GD
Geodynamics

Remarkable Regions – The India-Asia collision zone

Remarkable Regions – The India-Asia collision zone

Every 8 weeks we turn our attention to a Remarkable Region that deserves a spot in the scientific limelight. This week we zoom in on a particular part of the eastern Tethys as Adina Pusok discusses the India-Asia collision zone. She is a postdoctoral researcher at the Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, UCSD, US. Without doubt, one of the most striki ...[Read More]

GeoLog

The role of exploration geologists in fostering healthy community-industry relationships

The role of exploration geologists in fostering healthy community-industry relationships

In November 2015, the failure of the Fundão tailings dam in Brazil devastated the surrounding landscape and local villages, killing 19 people and leaving the media filled with images of landslides, fallen infrastructure and ruined livelihoods. The limited communication and lack of relationship between joint operators BHP Billiton and Brazilian company Vale with the surrounding communities exacerba ...[Read More]

GeoLog

Imaggeo on Mondays: Smoking mountain top

Imaggeo on Mondays: Smoking mountain top

Japan’s northernmost, second largest and least developed island, Hokkaido, is famous for its unspoilt nature. Harsh, cold and snowy winters make way for pleasant summers, which allow tourists and locals to enjoy a variety of outdoor activities, year-round, in the island’s six protected areas. The largest of the natural parks is Daisetsuzan: known for it’s wilderness and volcanoes. It is formed by ...[Read More]

ST
Solar-Terrestrial Sciences

Dr. Helen Mason – Solar space missions: a life with the Sun

Dr. Helen Mason – Solar space missions: a life with the Sun

In the December issue of Life of a Scientist we have an interview of Dr. Helen Mason. She was working at the Department of Applied Mathematics and Theoretical Physics at the University of Cambridge, UK until recently when she retired. Her research interests include UV and X-Ray spectrum of the Sun. She has also devoted a lot of time in promoting science and working with schools from all over the w ...[Read More]

CR
Cryospheric Sciences

Image of the Week – Understanding Antarctic Sea Ice Expansion

Image of the Week – Understanding Antarctic Sea Ice Expansion

Sea ice is an extremely sensitive indicator of climate change. Arctic sea ice has been dubbed ‘the canary in the coal mine’, due to the observed steady decline in the summer sea ice extent in response to global warming over recent decades (see this and this previous posts). However, the story has not been mirrored at the other pole. As shown in our image of the week (blue line in Fig. 1), Antarcti ...[Read More]