A cloud in the lee of the Patagonian Andes observed during an entire day. The shape of the cloud changed from lenticular to whirl- and funnel-shaped. Description by Christoph Mayr, after the description on imaggeo.egu.eu. Konstantinos Kourtidis also added a comment to the image, explaining more about how lenticular clouds like these can form: “That’s a great photo sequence. The ...[Read More]
The solar eclipse of November 3, 2013, as observed from the MSG satellite, in geostationary orbit 36000km above the equator. The eclipsed area, where the shadow of the full Moon reached the Earth’s surface, moved over the Atlantic Ocean and Africa. This eclipse was classified as a hybrid eclipse because it started out as an annular eclipse and became a total eclipse over equatorial Africa. W ...[Read More]
The Intergovernmental Panel on Climate Change (IPCC) prepares and publishes extensive Assessment Reports on the scientific, technical and socio-economic knowledge on climate change, including its impacts, future risks, and likely scenarios based on the actions that humanity takes. In their sixth Assessment Report (AR6), the IPCC’s certainty and warnings were clearer than ever. This month’s GeoPoli ...[Read More]
During the late Jurassic, this dolostone was formerly at the sea floor, but after millions years of tectonic movements and natural forces, these rocks now appear at 3000m! Mont Blanc, the highest peak of the Alps is less than 20km away, and is visible in the background. Thank to the Alpine collision, this former sea floor was thrusted over gneiss and granite to make both geologists and mountaineer ...[Read More]
Hello Rebekka, thank you for taking the time to talk with us today! Could you introduce yourself to our readers? Hi. Thanks for giving me the chance to talk about my research and plans as ECS Rep for the Geodesy Division. I’m a researcher in Geodesy at Lantmäteriet, which is the Swedish mapping, cadastral, and land registration authority (I prefer the much shorter Swedish version 😉). I’m working i ...[Read More]
“The Onsala Twin Telescopes are part of the global geodetic Very Long Baseline Interferometry (VLBI) network. Radio telescopes all around the globe are observing extra-galactic radio sources simultaneously to determine Earth orientation parameters, source positions and station coordinates, as well as velocities. Geodetic Very Long Baseline Interferometry is used to maintain the International ...[Read More]
The Zugspitze Geodynamic Observatory Germany (ZUGOG) has been setup on the summit of mountain Zugspitze at an altitude of almost 3000 m during 2018 with the main scientific objective being a better understanding of seasonal and long-term mass redistributions in the European Alps. This knowledge is very important (e.g. with regard to water storage and its high sensitivity to climate change), but is ...[Read More]
The EGU’s #vEGU21 streamed a wide variety of virtual sessions from Short Courses to Union Symposia. While most #vEGU21 sessions had a specific scientific focus, a few highlighted topics that were of interest to geoscientists across multiple disciplines. The Union Symposia 3: “A Climate and Ecological Emergency: Can a pandemic help save us…?” was one of these sessions with a high level of participa ...[Read More]
At the transition from the Gobi Altay ranges to the Valley of the Lakes in South West Mongolia, the Ikh Bogd mountain towers almost 3000 m above the aridifying endorheic Orog Nuur Basin. The actively deforming mountain front shows traces of multiple earthquakes, which in turn affect the alluvial sediments deposited in the basin. Simultaneously, strong south-eastward winds create beautiful barchan ...[Read More]
Over the last few days the best athletes in the world have been descending on Japan for the long anticipated Tokyo Olympic Games, and it’s going to be a special and spectacular event. The Olympics have a long and rich history, and from their very inception have been influenced by geology, whether it’s earthquakes affecting venues or geological processes creating the very terrain athletes will be c ...[Read More]