EGU Blogs

5599 search results for "6"

GeoLog

An ocean emergency is upon us. Can the world reverse ocean decline?

An ocean emergency is upon us. Can the world reverse ocean decline?

“The ocean is not too big to fail, nor is it too big to fix, but it is too important to ignore.” Last week, Dr Jane Lubchenco voiced a thought we’ve all had at some point: that the ocean is so vast and bountiful, it is almost inconceivable that people could impact it. And yet… Speaking to more than 20 Heads of State and Government, and an audience of thousands of policymakers, ocean scientists, bu ...[Read More]

WaterUnderground

The rise and fall of urban groundwater

The rise and fall of urban groundwater

Original Article by Andy Baker and Margaret Shanafield Cities are home to about half of the global population and urban population has doubled in the last 50 years from 1.5 billion people in 1975 to 3.5 billion people in 2015. This urban population will rise to a predicted 5 billion people by 2050. So, it’s probable that most of us will be reading this from a city. So, city dwellers, do you know h ...[Read More]

CR
Cryospheric Sciences

Lights out: cryosphere instruments perfectly placed to study solar eclipse

Lights out: cryosphere instruments perfectly placed to study solar eclipse

On 04 December 2021, only a handful of people in Antarctica were fortunate enough to experience a total eclipse. As well as spectacular views—including a brief window of totality that darkened the midnight sun for 2 minutes—this phenomenon is known to affect the flow of energy between the Northern and Southern hemispheres of the ionosphere. Because eclipses in Antarctica only happen once every ~20 ...[Read More]

OS
Ocean Sciences

A modern take on the 19th-century scientific expeditions: cruise MSM104/1

A modern take on the 19th-century scientific expeditions: cruise MSM104/1

“Every ship that navigates the high seas, with these charts and blank abstract logs on board, may henceforth be regarded as a floating observatory, a temple of science.” Matthew Fontaine Maury This is a joint post, published together with the climate sciences division blog and the ocean sciences division blog. The ocean has always been important for humanity, with trade and war being just two exam ...[Read More]

CL
Climate: Past, Present & Future

A modern take on the 19th-century scientific expeditions: cruise MSM104/1

A modern take on the 19th-century scientific expeditions: cruise MSM104/1

“Every ship that navigates the high seas, with these charts and blank abstract logs on board, may henceforth be regarded as a floating observatory, a temple of science.” – Matthew Fontaine Maury This is a joint post, published together with the climate sciences division blog and the ocean sciences division blog. The ocean has always been important for humanity, with trade and war being just ...[Read More]

GM
Geomorphology

Introducing the Geomorphology ECS Team: the new and the old!

Introducing the Geomorphology ECS Team: the new and the old!

A dynamic and engaging team can make a world of difference, and the EGU GM Division’s ECS team is thrilled to introduce its new members (and reintroduce the old!). Drawing from the past traditions and also making judicious adaptions to fit the present, the current team is formed to strengthen the organisation and the members and identify and expand the synergies that can have a positive impact on ...[Read More]

HS
Hydrological Sciences

The mystery of shared first authorship

The mystery of shared first authorship

Have you heard of the option to have two first authors? Or seen the little star that indicates that both first authors have equally contributed to the work? I got to know the concept many years ago, without having ever used it. Now, one of my PhD students is working on a shared paper. My first reaction as a supervisor was: let’s have a quick look on the current rules about shared first autho ...[Read More]

GD
Geodynamics

Into the anisotropic Earth

Into the anisotropic Earth

While we have sent several rovers to Mars, drilling down even just to the mantle of our own planet is a challenge that we are yet to overcome. How is it then that we know all these things about our planet’s interior? It turns out, we do not need to be inside the Earth to know what is happening there. Observations from geophysics and geochemistry can inform us about the processes and the properties ...[Read More]

G
Geodesy

Geodesy 101 Literature

Blackboard with the Geodesy 101 short course title

During this year’s EGU General Assembly (GA) we held the first Geodesy 101 Short Course, where we gave an introduction to satellite gravimetry, GNSS processing and geodetic reference frames. We want to thank all of you who attended in-person or virtually, and made the short course a great experience! Please provide us feedback, if you have attended the short course here. At the GA, we were only ab ...[Read More]

GeoLog

The ancient art and science of mining: a look back at the 1500s

The ancient art and science of mining: a look back at the 1500s

Sean Daly is a (now retired) Canadian mining geologist with 40+ years of experience, who has dedicated his career to understanding the close relationship between mining, geology and society. His recent book “From the Erzgebirge to Potosi: ​A History of Geology and Mining Since the 1500’s” traces the history of mining and geology from the 1500’s including the Renaissance, the Industrial ...[Read More]