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vEGU21 will highlight the latest research in the Earth, planetary, and space sciences and enable journalists to interact with geoscientists from all over the world from 19-30 April.
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During this lively networking event, participants will virtually mingle with people working at the science-policy interface as well as others interested in doing so. The happy hour will begin at 17:00 CET.
Free and reduced registrations to vEGU21 will make it possible for geoscientists from around the globe to more efficiently collaborate to develop solutions to the many critical issues humanity will still face once the pandemic is over.
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We organized an exhibition on the climate crisis using high-quality images shot by scientists, who are amateur photographers, during their campaigns in glacier regions. Working-age people, attracted by the gorgeous images, received the message that such beauty is in danger of vanishing. Twice, the visitors could talk directly with the experts to discuss geoscience, photography, and aesthetic choices and, of course, climate change, a problem that each of us has to play a part in to solve.
We developed a 1 km satellite-data-driven permafrost carbon model to evaluate soil respiration sensitivity to recent snow cover changes in Alaska. Results show earlier snowmelt enhances growing-season soil respiration and reduces annual carbon uptake, while early cold-season soil respiration is linked to the number of snow-free days after the land surface freezes. Our results also show nonnegligible influences of subgrid variability in surface conditions on model-simulated CO 2 seasonal cycles.
Satellite radar could provide information on landslide locations within days of an earthquake or rainfall event anywhere on Earth, but until now there has been a lack of systematic testing of possible radar methods, and most methods have been demonstrated using a single case study event and data from a single satellite sensor. Here we test five methods on four events, demonstrating their wide applicability and making recommendations on when different methods should be applied in the future.
We combine systematic, historical, and paleo information to obtain flood information from the last 10 300 years for the Glomma River in Norway. We identify periods with increased flood activity (4000–2000 years ago and the recent 1000 years) that correspond broadly to periods with low summer temperatures and glacier growth. The design floods in Glomma were more than 20 % higher during the 18th century than today. We suggest that trends in flood variability are linked to snow in late spring.
The utility of logarithmic scales is nothing new to scientists – yet, sound interpretation of pH changes when comparing settings with different initial pH can be challenging. This blogpost highlights a manuscript by Fassbender et al. [1] that was recently submitted to the journal BG and is currently under open peer review. The pH scale was first published by Søren Peter Lauritz Sørensen in 1909 [2], who worked on this in Copenhagen, Denmark. Concerns about the potential for misinterpretation of …
Taken shortly after our departure from Ny-Ålesund after our first “Lost Meteorites” field trial in Greenland testing new equipment that can be used to discover ‘missing’ iron meteorites in Antarctica, the return flight gave incredible views of the surrounding landscape. This photo was taken looking down to the icy waters of Kongsfjorden on the west coast of Svalbard and the Kronebreen glacier behind, with, in the distance, the peaks of the Tre Kroner mountain. Description by Andy Smedley, after the …
The paper “Fault Rocks and Fault Mechanisms” by R. H. Sibson (1977), was one of the first studies that established major connections between the rocks that form in faults, and their conditions and mechanics during formation at crustal scale. Concretely, Sibson (1977) established: 1.) links among the textures and lithologies that develop along fault zones (fault rocks), 2.) the rheological and crustal conditions of fault rock formation, and 3.) the mechanical modes of shear failure along active crustal-scale fault zones. …
