If climate change throws off the seasonal freeze-thaw cycle of Arctic sea ice, it could trigger a reinforcing cycle of sea ice melt in parts of the Canadian Arctic.
sea ice
Posted inFeatures
Los retos de predecir las pequeñas, pero intensas, depresiones polares
Estas intensas tormentas marítimas suponen una amenaza para las comunidades costeras y las actividades económicas de las altas latitudes y puede que influencien el clima y la circulación oceánica.
Posted inNews
When Wild Weather Blew Old Sea Ice South
Last winter, an unprecedented high-pressure system over the Arctic drove nearly a quarter of old sea ice into warmer waters, putting it at greater risk of melting.
Posted inFeatures
The Challenges of Forecasting Small, But Mighty, Polar Lows
These intense maritime storms pose threats to high-latitude coastal communities and economic activities and may influence climate and ocean circulation.
Posted inResearch Spotlights
Irtysh River Drove Arctic Sea Ice Expansion 3 Million Years Ago
The Siberian river’s creation caused a massive influx of fresh water into the Kara Sea and radically changed the Arctic Ocean and Earth’s climate.
Posted inEditors' Vox
Wheels Down for NASA’s Operation IceBridge
Over a 13-year period, almost a thousand flights surveyed land and sea ice across the Arctic, Antarctic, and Alaska, providing unique insights into how the polar regions are changing.
Posted inAGU News
Claire L. Parkinson Receives the 2020 Roger Revelle Medal
Claire L. Parkinson was awarded the 2020 Roger Revelle Medal at the virtual AGU Fall Meeting in December. The medal is for “outstanding contributions in atmospheric sciences, atmosphere-ocean coupling, atmosphere-land coupling, biogeochemical cycles, climate or related aspects of the Earth system.”
Posted inNews
Laser Flashes Shed Light on a Changing Arctic
An ongoing project in northern Alaska is using pulses of laser light to monitor anthropogenic activity, ice quakes, and marine wildlife.
Posted inResearch Spotlights
South Pole Ice Core Reveals History of Antarctic Sea Ice
Every summer, most of the sea ice near Antarctica melts away, but its saltiness leaves a permanent record that scientists can trace back for millennia.