Snow and Avalanches

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  • Major shifts in global freshwater
    on May 16, 2018 at 8:25 pm

    A new global, satellite-based study of Earth's freshwater found that Earth's wet areas are getting wetter, while dry areas are getting drier. The data suggest this pattern is due to many factors, including human water management practices, human-caused climate change and natural climate cycles. […]

  • Antarctic seals can help predict ice sheet melt
    on May 15, 2018 at 2:56 pm

    Two species of seal found in Antarctic seas are helping scientists collect data about the temperature and salinity of waters around vulnerable ice sheets in West Antarctica. Understanding more about how this water gets towards the ice shelves by measuring its temperature, salinity and depth, will help climate change modellers make more accurate predictions about how rapidly the Antarctic ice sheet is melting. […]

  • Ice stream draining Greenland Ice Sheet sensitive to changes over past 45,000 years
    on May 14, 2018 at 12:39 pm

    A ribbon of ice more than 600 kilometers long that drains about 12 percent of the gigantic Greenland Ice Sheet has been smaller than it is today about half of the time over the past 45,000 years, a new study suggests. […]

  • The slipperiness of ice explained
    on May 9, 2018 at 4:15 pm

    Everybody knows that sliding on ice or snow, is much easier than sliding on most other surfaces. But why is the ice surface slippery? Researchers have now shown that the slipperiness of ice is a consequence of the ease with which the topmost water molecules can roll over the ice surface. […]

  • Measuring snow persistence can help predict streamflow
    on May 7, 2018 at 3:18 pm

    A team of researchers found that snow persistence can be used to map patterns of annual streamflow in dry parts of the western United States. […]

  • 'Hairdryer wind' melts snow in Antarctica in winter as well
    on May 2, 2018 at 2:40 pm

    Even though the sun does not shine in Antarctica in winter, in some places snow on the glaciers can melt. The cause: warm wind. Utrecht glacier researchers discovered that fact by combining the results of weather stations and satellite images. […]

  • Physics of a glacial 'slushy' reveal granular forces on a massive scale
    on April 30, 2018 at 8:04 pm

    New findings describe the dynamics of the clog of icebergs -- known as an ice mélange -- in front of Greenland's Jakobshavn Glacier. The fast-moving glacier is considered a bellwether for the effects of climate change. […]

  • Study reveals new Antarctic process contributing to sea level rise and climate change
    on April 18, 2018 at 6:15 pm

    A new study has revealed a previously undocumented process where melting glacial ice sheets change the ocean in a way that further accelerates the rate of ice melt and sea level rise. The research found that glacial meltwater makes the ocean's surface layer less salty and more buoyant, preventing deep mixing in winter and allowing warm water at depth to retain its heat and further melt glaciers from below. […]

  • Virtual contact lenses for radar satellites
    on April 16, 2018 at 2:58 pm

    Radar satellites supply the data used to map sea level and ocean currents. However, up until now the radar's 'eyes' have been blind where the oceans are covered by ice. Researchers have now developed a new analysis method to solve this problem. […]

  • Scientists discover first super salty subglacial lakes in Canadian Arctic
    on April 11, 2018 at 9:41 pm

    An analysis of radar data led scientists to an unexpected discovery of two lakes located beneath 550 to 750 meters of ice underneath the Devon Ice Cap, one of the largest ice caps in the Canadian Arctic. They are thought to be the first isolated hypersaline subglacial lakes in the world. […]

  • Snowfall patterns may provide clues to Greenland Ice Sheet
    on April 11, 2018 at 5:16 pm

    A new study describes a unique method involving cloud characteristics for measuring snowfall that could help answer some big questions about the Greenland Ice Sheet. […]

  • North-exposed ice cliffs accelerate glacier melt
    on April 11, 2018 at 3:10 pm

    Researchers have confirmed the suspicion that north-facing ice cliffs on debris-covered glaciers in the Himalayas accelerate ice melt. […]

  • Melting of Arctic mountain glaciers unprecedented in the past 400 years
    on April 10, 2018 at 5:28 pm

    Glaciers in Alaska's Denali National Park are melting faster than at any time in the past four centuries because of rising summer temperatures, a new study finds. […]

  • 1C rise in atmospheric temperature causes rapid changes to world's largest High Arctic lake
    on April 6, 2018 at 7:54 pm

    An interdisciplinary team of scientists examining everything from glaciology to freshwater ecology discovered drastic changes over the past decade to the world's largest High Arctic lake. And from glacial melt to the declining lake ice to changes in lake ecology, the results from Lake Hazen on Ellesmere Island in Canada are alarming. […]

  • Algae, impurities darken Greenland ice sheet and intensify melting
    on April 4, 2018 at 3:47 pm

    The Dark Zone of the Greenland ice sheet has major impact on the surface melt of this immense store of ice. A new study -- based on drone surveys -- suggests that ice algae, dust and soot from wildfires and combustion are the main cause. […]

  • Spa therapy helps Japan's snow monkeys cope with the cold
    on April 3, 2018 at 3:59 pm

    Japanese macaques, also known as snow monkeys, have been enjoying regular baths in the hot spring at Jigokudani in Japan for decades -- and have even become a popular tourist attraction. New findings indicate how behavioral flexibility can help counter cold-climate stress and have likely implications for reproduction and survival. […]

  • Antarctica retreating across the sea floor
    on April 2, 2018 at 4:36 pm

    Antarctica's great ice sheet is losing ground as it is eroded by warm ocean water circulating beneath its floating edge, a new study has found.  &nbs […]

  • NASA visualizes the dance of a melting snowflake
    on March 29, 2018 at 5:31 pm

    NASA has produced the first three-dimensional numerical model of melting snowflakes in the atmosphere. The model provides a better understanding of how snow melts can help scientists recognize the signature in radar signals of heavier, wetter snow -- the kind that breaks power lines and tree limbs -- and could be a step toward improving predictions of this hazard. […]

  • West Greenland Ice Sheet melting at the fastest rate in centuries
    on March 28, 2018 at 6:33 pm

    New study from the West Greenland Ice Sheet shows that weather patterns and summer warming combine to drive ice loss that is at the highest levels in at least 450 years. […]

  • Arctic wintertime sea ice extent is among lowest on record
    on March 23, 2018 at 6:13 pm

    Sea ice in the Arctic grew to its annual maximum extent last week, and joined 2015, 2016 and 2017 as the four lowest maximum extents on record, according to scientists. […]

  • Research suggests low density of snow leopards in Nepal`s Conservation Area
    on March 22, 2018 at 3:30 pm

    The snow leopard is a mammal species of the cat family found at high altitudes in Nepal and other countries around the Himalayan range. However, it has been included in the vulnerable category of IUCN Red list of threatened species in recent years for various reasons. […]

  • The Arctic sea-ice loss and winter temperatures in Eurasia
    on March 21, 2018 at 1:04 pm

    A long debate of the role of the sea ice and the winter temperatures in Eurasia has got a new contribution. Probably no connection, a new study says. […]

  • Wind, sea ice patterns point to climate change in western Arctic
    on March 20, 2018 at 4:34 pm

    A major shift in western Arctic wind patterns occurred throughout the winter of 2017 and the resulting changes in sea ice movement are possible indicators of a changing climate, says a researcher. […]

  • Rain or snow? Humidity, location can make all the difference, new map shows
    on March 20, 2018 at 12:43 pm

    Researchers have created a map of the Northern Hemisphere showing how location and humidity can affect precipitation, illustrating wide variability in how and why different areas receive snow or rain. […]

  • Geoengineering polar glaciers to slow sea-level rise
    on March 19, 2018 at 6:45 pm

    Targeted geoengineering to preserve continental ice sheets deserves serious research and investment, argues an international team of researchers. Without intervention, by 2100 most large coastal cities will face sea levels that are more than three feet higher than they are currently. […]

  • Glacier mass loss: Past the point of no return
    on March 19, 2018 at 4:42 pm

    Researchers show in a recent study that the further melting of glaciers cannot be prevented in the current century -- even if all emissions were stopped now. However, due to the slow reaction of glaciers to climate change, our behavior has a massive impact beyond the 21st century: In the long run, five hundred meters by car with a mid-range vehicle will cost one kilogram of glacier ice. […]

  • Arctic sea ice becoming a spring hazard for North Atlantic ships
    on March 19, 2018 at 3:57 pm

    More Arctic sea ice is entering the North Atlantic Ocean than before, making it increasingly dangerous for ships to navigate those waters in late spring, according to new research. […]

  • Soot transported from elsewhere in world contributes little to melting of some Antarctic glaciers
    on March 16, 2018 at 11:25 pm

    Airborne soot produced by wildfires and fossil-fuel combustion and transported to the remote McMurdo Dry Valleys of Antarctica contains levels of black carbon too low to contribute significantly to the melting of local glaciers, according to a new study. […]

  • Greenland glaciers' varied vulnerability to melting
    on March 14, 2018 at 6:49 pm

    Using data from NASA missions observing Earth, researchers have created new maps of the bed topography beneath a score of glaciers in southeast Greenland, thereby gaining a much better understanding of why some are undergoing rapid retreat and others are relatively stable. […]

  • Exceptionally large amount of winter snow in Northern Hemisphere this year
    on March 14, 2018 at 1:27 pm

    The new Arctic Now product shows with one picture the extent of the area in the Northern Hemisphere currently covered by ice and snow. This kind of information, which shows the accurate state of the Arctic, becomes increasingly important due to climate change. […]