Articles tagged with Ice
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Researchers from the US and UK have created a method to predict September Arctic sea ice extent with high accuracy, improving monitoring of sea ice health and its impact on global climate. The model captures effects from subseasonal to seasonal timescales and outperforms other models.
A University of Waterloo scientist and international collaborators found that airborne mineral dust promotes algae growth on the Greenland ice sheet, exacerbating melting. The study reveals that phosphorus in the dust fuels the growth of pigmented glacier algae.
The United Nations University reports that many regions are living beyond their hydrological means, with critical water systems already bankrupt. The study defines 'water bankruptcy' as persistent over-withdrawal from surface and groundwater relative to renewable inflows and safe levels of depletion. This has resulted in a growing list...
A recent study has reconciled the debate over the existence and thickness of a microscopically thin liquid layer, known as premelting film, on ice surfaces. The research suggests that this layer is restricted to a limited thickness near the equilibrium point due to water's unusual density properties.
New research reveals Greenland is shrinking slightly, but expanding in some regions, due to accelerated melting and prehistoric ice mass movements. The island's horizontal movements are being pulled in different directions, with areas of expansion and contraction observed.
A new mathematical framework, STIV, can predict larger-scale effects like proteins unfolding and crystals forming without costly simulations or experiments. The framework solves a 40-year-old problem in phase-field modeling, allowing for the design of smarter medicines and materials.
Researchers at Saarland University discovered that molecular dipoles in ice and shoe soles interact to create a disordered, amorphous structure on the ice surface. This interaction causes the ice to become slippery, leading to slips and falls, rather than pressure or friction.
A new study published in Earth's Future journal reveals that sea-level projections from the 1990s were remarkably accurate, with global sea-level rise averaging about one eighth of an inch per year. The researchers compared these projections with recent satellite measurements and found a remarkable match.
Glacier-caused flooding is an annual threat in Juneau, with record-breaking floods over the past two years impacting hundreds of homes. The USGS provides real-time monitoring data to help emergency managers make informed decisions about evacuations and road closures.
Scientists at Virginia Tech mimic the natural movement of boulders on Racetrack Playa by creating a metal surface with asymmetric grooves that propel melting ice. The discovery has potential applications in rapid defrosting and energy harvesting.
Researchers at ETH Zurich found that mineral dust particles can trigger freezing of cloud droplets, particularly important in northern regions where clouds form below freezing temperatures. This process affects sunlight reflection and precipitation generation, with major implications for climate models.
Researchers investigated low-density amorphous ice and found it was not fully disordered but contained tiny crystals. This discovery challenges the assumption that space ice is similar to liquid water and has implications for theories like Panspermia.
Scientists developed a method to store short messages in frozen ice by manipulating bubble size and distribution. Binary coding proved more effective than Morse code for longer messages, with potential applications beyond messaging, such as improving metal smelting and manufacturing processes.
Researchers from the Institute of Industrial Science, The University of Tokyo, used molecular-scale simulations to understand ice formation. They found that the arrangement of water molecules in the two layers closest to the surface is crucial for nucleation, promoting a low-dimensional hexagonal crystal lattice at the surface.
New data from the James Webb Space Telescope suggests that Europa's icy surface is constantly changing due to interactions with charged particles. Laboratory experiments also found evidence of crystalline ice beneath the amorphous ice layer, indicating a possible liquid ocean beneath the surface.
Scientists have developed two new methods to detect water ice on the lunar surface, with one approach analyzing images from a specialized camera and another detecting buried ice deposits through cosmic rays. The research aims to support future lunar bases and provide resources for humans or be broken down to hydrogen and oxygen.
Researchers from the Institute of Physical Chemistry, Polish Academy of Sciences, have identified unusual phosphorus molecules in space. These molecules, including phosphabutadiyne and vinylphosphaethyne, were studied using cryogenic techniques and infrared spectroscopy, providing new insights into their formation and properties.
Researchers discovered that trapped pockets of liquid can form inside ice, leading to extreme pressure that breaks glass. To prevent this, ensure water freezes slowly by supercooling or use containers with water-repelling surfaces.
Scientists found large variations in surface temperatures, suggesting ice may be present near the lunar poles. A new model indicates areas with greater than 14° slope angle could be cool enough for ice to accumulate close to the surface.
The study reveals three distinct phases: liquid, solid, and plastic ice, with the latter exhibiting picosecond rotational motion. The implementation of state-of-the-art spectrometers and sample environments enabled the first experimental observation of plastic ice VII at high temperatures and pressures.
Researchers at ETH Zurich discovered tiny ice quakes deep inside ice streams, explaining the discrepancy between simulations and satellite measurements. The findings impact sea-level rise estimates and may reveal fault planes in ice cores, providing a better understanding of ice stream deformation.
Researchers at University of Hawaii at Manoa shed light on the transformation of supercooled water into ice, mimicking Earth's atmosphere conditions. The study provides valuable insights into cloud formation and precipitation, tying into a $26 million project to develop sustainable refrigerant technologies.
The study found clear evidence for a quantum spin ice state in the material Ce2Sn2O7, with the experimental data well described by recent theoretical models. The findings may inspire technology for quantum computers and pave the way towards future unifications of theory and experiments.
A new polymer developed using gecko-inspired technology can stick to icy surfaces, reducing the risk of slips and falls. The material is designed for use in shoe soles and has potential applications in medical innovations such as electronic skin.
A team of scientists discovered polar bear sebum's anti-icing properties, making it harder for ice to stick. The study sheds light on polar bear ecology and may lead to sustainable anti-ice surface coatings.
Researchers are exploring halide perovskites, a material that converts sunlight into energy efficiently. The team created distinct properties using ultra-cool methods, enabling mass production of solar cells.
Researchers at Iowa State University have rewritten the equation for deformation and flow of watery glacier ice, which could lead to more accurate models predicting sea-level rise. The new value of the stress exponent 'n' is 1.0, indicating a linear relationship between stress and deformation speed.
Scientists studied ancient whitebark pine forest on Beartooth Plateau, finding the tree line was 600 feet higher during a moderate climate period. The discovery sheds light on how dynamic ecosystems respond to temperature warming and offers insights into future changes for alpine environments.
Research by York University indicates that lake ice conditions are changing, with warmer temperatures increasing the formation of white ice, which is more prone to collapse. This poses a significant risk of accidents and drownings, particularly at the start and end of the winter season.
Researchers at Northwestern University have developed a new surface that prevents 100% of frost formation on flat areas for up to 160 hours. The hybrid surface combines a textured macrotexture with a thin layer of graphene oxide, offering a promising solution for various applications.
The world's freshwater lakes are freezing over for shorter periods due to climate change, affecting more than a billion people worldwide. Changes in ice duration have major implications for human safety, water quality, biodiversity, and global nutrient cycles.
Researchers have confirmed that El Niño causes a drastic reduction in the snow-covered area of the Quelccaya Ice Cap in the Peruvian Andes. The study used NASA Landsat satellites to measure the ice cap's sensitivity to climate shifts, finding that it lost about 58% of its snow cover between 1985 and 2022.
A new study from York University finds that lake ice quality is deteriorating due to climate change, making it unstable and unsafe for humans. The researchers warn of the dangers of thin layers of black ice and white ice combinations, which can lead to accidents and even fatalities.
Researchers have found a new mechanism for the formation of impermeable horizontal ice layers below the surface of ice sheets, which could improve estimates of sea level rise. This process is critical for determining the contribution of ice sheet meltwater to sea level rise.
A new study led by Dartmouth researchers questions the rapid polar ice collapse model used in the IPCC's sixth assessment report. The team found that the expected rate of retreat is significantly lower than predicted, making the worst-case scenario less likely, but still dire due to ongoing ice loss from Greenland and Antarctica.
A rock formation spanning Ireland and Scotland has been confirmed as a rare record of the 'snowball Earth' period, when the globe was covered in ice. The Port Askaig Formation, composed of layers up to 1.1km thick, dates back to 662-720 million years ago during the Sturtian glaciation.
A new study published in Physical Review Letters suggests that nanohertz gravitational waves may not originate from supercool first-order phase transitions. Researchers found that such transitions would struggle to complete, shifting the frequency of the waves away from nanohertz frequencies.
Research published in ACS Environmental Science & Technology found that freezing can alter microplastics' sink-or-swim tendencies, with some polymers becoming larger and more buoyant after thawing. This could accelerate the accumulation of microplastics in freshwater lake or river sediments.
A recent study by UT Arlington scientist Nathan D. Brown shows Alaskan land is eroding faster than it can be replaced due to climate change. The team mapped and dated floodplain deposits, determining permafrost extent, to model how permafrost formation varies with air temperature.
A new study suggests that the rising earth in Antarctica will impact future sea level rise, depending on how much global warming is controlled. If humans lower greenhouse gas emissions, upward shifts in solid earth could reduce Antarctica's contribution to sea level rise by about 40%, bolstering best-case scenarios for global sea level...
Scientists from Japan have discovered a new type of ice, known as ice 0, which can cause water droplets to freeze near their surface rather than at their core. This discovery resolves a debate about the formation of ice and has significant implications for climate studies and food sciences.
Professors Philip LeDuc and Burak Ozdoganlar have developed a novel 3D ice printing technique that enables the creation of micro-scale structures with tailored geometries. Their method uses water as an ink substitute, allowing for the deposition of precise internal voids and channels.
Scientists directly observe the precise shape of ice at its interface with liquid for the first time, revealing a flat surface with occasional steps. They also found that the ice is harder than previously estimated, using antifreeze and advanced microscopy.
The Antarctic ice sheet formed around 34 million years ago in the eastern region of the continent, rather than the entire continent as previously thought. The study reveals that different regions of the ice sheet react differently to external influences and climatic changes.
In a study published in PNAS, researchers found that microscopic fungi play a key role in enhancing soil carbon storage in newly formed landscapes created by shrinking Arctic glaciers. The team discovered diverse communities of microbes thriving in the barren soils, and pioneer fungi sequester carbon in the soil.
Researchers at Cornell University found that small variations in layers of water ice can cause constructive interference between radar waves, producing bright reflections. This explanation accounts for the observed signals without requiring liquid water, casting doubt on potential microbial life on Mars.
Researchers at Osaka Metropolitan University developed a machine learning-based deicer that offers higher performance while minimizing environmental harm. The new mixture of propylene glycol and sodium formate solution shows improved ice penetration capacity, reducing the need for substance use.
Researchers at the University of Copenhagen have tracked the evolution of glaciers in East Antarctica using hundreds of old aerial photographs dating back to 1937. The study reveals that the ice has remained stable and grown slightly over almost a century, partly due to increasing snowfall.
A research team led by UCF's Mário Nascimento De Prá and Noemí Pinilla-Alonso discovered carbon dioxide and carbon monoxide ices on 59 trans-Neptunian objects using the James Webb Space Telescope. The findings suggest that carbon dioxide was abundant in the protoplanetary disk, while the origin of carbon monoxide remains uncertain.
A team of scientists has discovered an ocean of liquid water beneath Pluto's surface, with a shell of nitrogen and water ice estimated to be 40-80 km thick. The density of the ocean is around 8% denser than seawater on Earth, allowing for minimal fractures in the ice above.
A new platform enables full-cycle cryogenic protection for mouse oocytes, reducing gene variations and improving offspring birth rates. The platform uses nanomaterials to inhibit ice formation, resulting in higher quality preserved oocytes.
Despite rising temperatures in the region, Yellowstone Lake's ice cover has not changed over the past century, according to new research. Increased snowfall has acted as a buffer against warmer weather, delaying ice break-up and protecting the lake's unique ice phenology.
A new study on comets suggests that Kuiper Belt Objects like Arrokoth may contain ancient ices from billions of years ago. Researchers found a domino effect where the object's interior gets colder, preserving volatile gases for billions of years.
Researchers analyzed large craters on Europa to determine the ice shell's thickness, finding it to be at least 20 kilometers thick. This conclusion is based on the study of impact cratering and the combination of physical characteristics that could have created such a surface structure.
Researchers unveiled a theoretical model that shows specific structural details on surfaces can influence water's freezing point. The model identifies angles between microscopic bumps on a surface that make it easier for water molecules to crystallize at relatively warmer temperatures.
Researchers at Cornell University have devised a novel way to determine ocean temperatures of distant worlds based on the thickness of their ice shells. This technique can be used to enhance NASA's mission findings about Europa and Enceladus, two Jovian and Saturnian moons that could potentially support life.
Researchers from TU Graz developed an innovative ice-repellent coating using initiated chemical vapour deposition (iCVD). The coating's unique mechanism involves random alignment of molecules, creating a surface that prevents ice crystals from sticking.
Researchers found that global warming made the Corbassière glacier unusable as a climate archive, destroying reliable information about past climate and air pollution. The glacier's ice core showed flattened concentration curves and lower amounts of trace substances, likely due to meltwater washing away the deposits.
Researchers confirm Pine Island Glacier passed a tipping point between 1940s and 1970s, leading to an irreversible loss of ice over several decades. The study provides insights into the interactions between ocean and glaciers in Antarctica, highlighting concerns for future mass loss unless global warming is kept within limits.
A team of researchers found that carbamic acid and ammonium carbamate can form in interstellar ices at low temperatures, potentially delivering these molecules to early Earth via comets or meteorites. This discovery could inform future studies using powerful telescopes to search for prebiotic molecules in distant star-forming regions.