Greenland’s ice sheet holds enough water to raise global sea levels by over 7 meters, but predicting how much it will actually shrink remains challenging due to the massive computational cost of traditional models. Our latest research introduces machine learning-based downscaling that generates high-resolution climate fields orders of magnitude faster than conventional regional climate models. …[Read More]
Antarctic ice shelves melt from beneath where they contact the ocean, but how well do ocean models simulate this process? Building on several decades of model development, a recent model intercomparison study compared ice shelf-ocean models from modelling groups around the world with the same, idealised benchmark configuration. From this effort, we can learn how …[Read More]
Cryosphere scientists know it well; the Arctic doesn’t give up its secrets easily. This is especially true when it comes to exploring permafrost -– frozen soils that store centuries of history underground. Keeping an eye on the state of permafrost is more important than ever, as widespread permafrost thaw is a direct result of rising …[Read More]
Measuring ice surface elevation changes with satellite laser altimeters flying hundreds of kilometres above Earth tells us where the Antarctic and Greenland ice sheets are thinning or thickening and how much they contribute to sea level rise. Beyond that though, it can also reveal hidden activity of subglacial lakes filling and draining beneath …[Read More]
Kggk kggk kggk – the sound of crampons accompanies me. A thin layer of snow covers the slippery ice while I pull a sled. As I wipe my hand over the snow, underneath, a blue color glitters in the sun (Figure 2). In the last days it has been snowing in the White Desert (Antarctica). …[Read More]
Let’s continue the journey of discovering cool facts about sea ice which started with breaking the ice. This time, we’re diving into a fascinating part of the Arctic and Antarctic: the Marginal Ice Zone (MIZ). Imagine a place where the vast, frozen world of sea ice meets the moving waters of the ocean underneath. This …[Read More]
Most of the time when we speak or read about sea ice it is probably about its extent or thickness or the decline in both, or maybe even about the microorganisms living inside and underneath it. How sea ice breaks and deforms is normally not so much the topic of general discussions. This is …[Read More]
Lately permafrost makes the news more and more because of its enormous carbon stocks and its vulnerability to climate change. While permafrost greenhouse gas budget calculations are complex and harbour an ever-growing research community, its microbial ecology is still on the rise. A recent star are tiny roundworms that survived frozen in permafrost for 46’000 …[Read More]
Fieldwork is essential to polar sciences, but who are the people that actually do the fieldwork these days? A great field team includes people spanning a diversity of scientific skills, but at the same time, a diversity of cultures, backgrounds, and identities also adds intrinsic value to team dynamics and the overall field work experience. …[Read More]
As scientists, we often encounter errors in our own work and in the work of others. As modelers, we call these errors “bugs”. Of course, they are not actual insects, but they definitely keep us awake from time to time. Even though everyone is aware of their existence, we rarely discuss them in a scientific …[Read More]
