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Cryospheric Sciences

418 search results for "sea ice"

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Cryospheric Sciences

Recipe to quantify calibration errors in a time-dependent ice sheet model

October 27, 2023
Recipe to quantify calibration errors in a time-dependent ice sheet model

Ice sheet models are awesome tools that help us learn and predict the fate of ice sheets under human-induced climate change. However, all models have errors. What types of uncertainties exist in an ice sheet model and how can we quantify some of them efficiently? Check out our recipe to quantify one type of uncertainty in sea level rise projections: The model calibration error. Not a numerical mod ...[Read More]

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Cryospheric Sciences

Hidden Ice of the Greater Caucasus

June 30, 2023
Hidden Ice of the Greater Caucasus

In this week’s blog, Levan Tielidze tells us about the first inventory of rock glaciers from the Greater Caucasus as an important basis for further research of geomorphology and palaeoglaciology in this region. What are Rock Glaciers? Rock glaciers are distinctive geomorphological landforms of frozen debris that are supersaturated with ice. The low ice velocity or certain speed of movement and per ...[Read More]

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Cryospheric Sciences

Did you know the mystery of the ice-cold rose?

April 21, 2023
Did you know the mystery of the ice-cold rose?

Darkness. Freezing cold. Thin layers of ice cover the wide Arctic Ocean. It is the time of the last dusk. You can almost see Fenris wolf chasing the sun to devour it, almost hear his howling as darkness falls. Fimbulwinter has arrived. But what is this? A flower? Out here on the Arctic Ocean? This is strange, so let us take a closer look at the mystery of the ice-cold rose. Where the Wild Roses Gr ...[Read More]

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Cryospheric Sciences

Highlighted Paper – The ice factories of the Arctic Ocean

March 31, 2023
Highlighted Paper – The ice factories of the Arctic Ocean

Each year, the Arctic sea ice goes through a cycle of melting and freezing. From March to September, sea ice gradually melts and becomes thinner, and from October to March, the water freezes again. In our warming climate, we see that more and more ice melts each year. One would expect that the ice would also freeze less, but we have observed that the ice growth – or ice production – has increased ...[Read More]

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Cryospheric Sciences

For Dummies: Radar altimetry for measuring ice sheet elevation changes

March 3, 2023
For Dummies: Radar altimetry for measuring ice sheet elevation changes

Does measuring the surface of the ice sheets provide more than superficial knowledge of their current status? Read further to find out why the answer is definitely yes! Measuring surface elevation changes actually tells us where Greenland and Antarctica are thinning or thickening and how much they contribute to sea level rise. Scientists have been doing this for the past three decades, so keep on ...[Read More]

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Cryospheric Sciences

Image of the week – The gaze of the ice cap

January 27, 2023
Image of the week – The gaze of the ice cap

We are getting used to perceiving glaciers more and more distant and disconnected from our mountains. With each passing year, it is more difficult to observe them, reach them or climb them. They are becoming an exotic element of the Alpine imagination. When our gaze rests on a mountain glacier, with its crevasses and large moraines, we are filled with the fascination of someone observing a new nat ...[Read More]

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Cryospheric Sciences

Discover the CordillerICE project!

November 18, 2022
Discover the CordillerICE project!

In high-school, I learned in a textbook that glaciers are melting. My teacher said that what was written in that textbook was right, and that was it. There was no proof, no explanation, no scientist’s testimony. All of that, I discovered much later during my studies in the geosciences. Yet as the global temperatures keep rising, and our politicians apply rigorously the “keep calm and carry on” mod ...[Read More]

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Cryospheric Sciences

Hidden beneath the surface – what can we learn from an ice sheet’s internal stratigraphy?

October 28, 2022
Hidden beneath the surface – what can we learn from an ice sheet’s internal stratigraphy?

Hidden beneath the surface of ice sheets lies an intricate structure carrying a unique fingerprint of past ice flow and climate conditions. Disentangling the drivers of an ice sheet’s enigmatic stratigraphy could theoretically unravel the ice sheet’s past evolution and provide a much clearer picture of things to come in the future. One way to detect this mysterious stratigraphy is to use ice-penet ...[Read More]

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Cryospheric Sciences

The Global Arctic, a personal perspective on interdisciplinary research

October 21, 2022
The Global Arctic, a personal perspective on interdisciplinary research

Around the summer solstice of 2022, a small group of twenty young researchers met in Svalbard, a small island lost between Norway and the North Pole. The Norwegian Scientific Academy for Polar Research wanted to bring us together around the theme of “The Global Arctic“. The scope of this summer school was to “produce a better understanding of the significance of the concept of Gl ...[Read More]

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Cryospheric Sciences

Cryo Adventures – Installing a weather station on the Greenland Ice Sheet

September 2, 2022
Cryo Adventures – Installing a weather station on the Greenland Ice Sheet

Soaking up the sun and recharging batteries on a peaceful and quiet summer day, or fighting to stay upright during extreme snow storms in the middle of winter, while continuously recording valuable air temperature, pressure, wind-speed and so much more – such is the life of an automatic weather station on the Greenland ice sheet. Even though they are so remote, sitting by themselves surround ...[Read More]