A new high-resolution dataset from Svalbard's glaciers provides unprecedented insights into calving front changes, revealing a retreating trend for most glaciers. The data can be used to improve mass balance assessments and explore drivers of glacier calving, crucial for understanding climate change's impact on the Arctic Cryosphere.
Researchers found that historically low volcanic carbon dioxide emissions, combined with weathering of a large pile of volcanic rocks in Canada, led to the prolonged Sturtian glaciation. The team used plate tectonic modeling and computer simulations to investigate the cause and duration of this ice age.
A new computer model reconstructs the evolution of Alpine ice cover with unprecedented precision, allowing scientists to understand past climate interaction with glaciers. The simulation provides a direct visualization of phenomena, making them accessible to a wide audience.
A new laser-based sampling system allows for higher depth resolution, enabling scientists to reconstruct continuous annual temperature changes thousands of years ago. The LMS system overcomes previous limitations in sampling ice cores, preserving critical oxygen and hydrogen isotopes needed to infer past temperatures.
Scientists have developed a new radar technique that can image hidden features within the upper few feet of ice sheets, including melting glaciers on Earth and potentially habitable environments on Jupiter's moon Europa. The technique boosts resolution by combining two different radar bandwidths and looking for discrepancies.
Scientists from Hokkaido University propose a cheap and effective alternative for monitoring glacial runoff by analyzing audible sounds generated at the proglacial run-off site. The method has shown promising results in detecting changes in glacier discharge with high accuracy.
Researchers at Pusan National University have created a new algorithm that can accurately predict ice resistance and fracture points for ships navigating through the Arctic shipping routes. The model uses an elastic material approach, allowing it to study continuous ice-breaking processes, which is essential for efficient navigation.
The years 2001 to 2011 were the warmest in the last thousand years, with temperatures 1.5 °C higher than in the 20th century at high elevations of the Greenland Ice Sheet. This warming is surprisingly pronounced and decoupled from the rest of the Arctic.
Researchers used high-resolution radar systems to reconstruct past ice streams in Greenland, revealing they can 'shut down' rapidly. This insight offers new information on the future behavior of ice streams and how it affects sea-level rise predictions.
A team of researchers from ETH Zurich and WSL reconstructed the topography of all Swiss glaciers in 1931 using stereophotogrammetry. They found that the glacier volume halved between 1931 and 2016, with some glaciers losing mass at varying rates depending on factors like altitude, snout shape, and debris coverage.
A new study from the University of Washington and the National Park Service measured 38 years of change for glaciers in Kenai Fjords National Park. The study found that 13 of 19 glaciers have shown significant retreat, while two have advanced. Lake-terminating glaciers are retreating at a faster rate than other types.
Researchers developed a methodology to attribute coastal glacier retreat to human-caused climate change, revealing that even modest global warming causes most glaciers to melt or retreat. The approach simulates the behavior of real ice sheets like Greenland's, helping predict major ice loss and informing decision-making for policymakers.
Researchers found that a 2019 landslide on the Amalia Glacier in Chile caused it to grow in size and slow down its melting process. The study suggests that landslides can have a major impact on glacier movement, which could help scientists better predict future changes due to climate change.
Researchers estimate 60,000-year timeline of massive volcanic eruptions, finding 85 large global eruptions and 69 larger than the 1815 Mount Tambora eruption. This new data helps improve climate models by providing insights into Earth's climate sensitivity.
Scientists have found that the West Antarctic Ice Sheet formed 35 million years ago, with warm deep water delaying its expansion to the sea. This discovery helps improve forecasts of its future stability and ice retreat.
Researchers have created the first global map of flow velocities for 98% of the world's glaciers using satellite images. The study found that Himalayan glaciers hold a third more water than previously estimated, while tropical Andean glaciers may be up to 23% smaller.
A new atlas measures the movement and thickness of over 250,000 mountain glaciers worldwide, revealing a mixed picture of the globe's ice-bound freshwater resources. The research suggests there is 20% less ice available for sea level rise than previously thought, with significant implications for water availability and climate change.
Researchers found that glaciers in the Northern Hemisphere lost a total area of 390 km² per year, with 60% attributed to the Greenland Ice Sheet. Only 3% of glaciers advanced during this period. The study highlights the impact of climate change on marine-terminating glaciers.
A submersible robot will explore three of Greenland's glaciers with a remotely operated vehicle Nereid Under Ice (NUI), mapping seafloor topography and retrieving sediment cores to study moraines and their impact on glacier stability. The mission aims to improve model projections for future sea level rise.
A recent study analyzing air bubbles preserved in Antarctic ice for up to 1.5 million years suggests that glacial erosion is likely responsible for the decline of atmospheric oxygen levels over the past 800,000 years.