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A novel Artificial Intelligence (AI) tool that can help accurately forecast Arctic sea ice conditions has been developed. The AI system, IceNet, addresses the challenge of producing accurate Arctic sea ice forecasts for the season ahead -- something that has eluded scientists for decades. A team of researchers led by British Antarctic Survey (BAS) and The Alan Turing Institute have described IceNet in the journal Nature Communications. Sea ice, a vast layer of frozen sea water that appears at the North and South poles, is notoriously difficult to forecast because of its complex relationship with the atmosphere above and ocean below.
These accelerating changes have dramatic consequences for our climate, for Arctic ecosystems, and indigenous and local communities whose livelihoods are tied to the seasonal sea ice cycle.
IceNet -- the AI predictive tool -- is almost 95 per cent accurate in predicting whether sea ice will be present two months ahead.
"The Arctic is a region on the frontline of climate change and has seen substantial warming over the last 40 years. IceNet has the potential to fill an urgent gap in forecasting sea ice for Arctic sustainability efforts and runs thousands of times faster than traditional methods," said lead author Tom Andersson, Data Scientist at the BAS AI Lab. "Our new sea ice forecasting framework fuses data from satellite sensors with the output of climate models in ways traditional systems simply couldn't achieve," said Dr Scott Hosking, senior Research Fellow at The Alan Turing Institute.
Unlike conventional forecasting systems that attempt to model the laws of physics directly, IceNet has been designed based on a concept called deep learning. Through this approach, the model 'learns' how sea ice changes from thousands of years of climate simulation data, along with decades of observational data to predict the extent of Arctic sea ice months into the future.
"Now we've demonstrated that AI can accurately forecast sea ice, our next goal is to develop a daily version of the model and have it running publicly in real-time, just like weather forecasts. This could operate as an early warning system for risks associated with rapid sea ice loss," Andersson said.(Article originally published at IANSlife) IANS/SS
Keywords: arctic, arctic sea, AI, Arctic ecosystems, ice loss
The world's largest island, Greenland, located between the Arctic and the Antarctic oceans has received rainfall in greenland ice summit, the entirely snow-covered peak for the first time in history.
The place, covered with permanent ice-sheets for about three-quarters of its surface has been increasingly falling under serious threats due to the change in climatic conditions. Last week Saturday, for the first time ever in history, Greenland's Summit did not receive snow, but it received rainfall.
This is because the temperature of the spot has gone above freezing for the third time less than ten years. The scientists fear that Greenland summit rainfall is reflecting to the evidence of the rapid warming up of the landscape. According to the National Snow and ice Data Centre, since the recording was first initiated in the year 1950, this has been the heaviest rainfall recorded. Sunday witnessed a very high rate of melting of ice which is almost seven times higher than the normal rate observed in the regular days of the year.
America's national Science Foundation maintains a Summit station at the highest point of the Greenland ice-sheet. The research facility is meant to observe the climatic conditions and changes over the island and the Arctic weather. The facility, on Saturday, observed that the regularly frigid summit had rains with its precipitation extending up to the southeast coast of Greenland.
The day covered 337,000 square miles of melting, in the 656,000 squares large area. Over the course of three days, the Greenland ice-sheet received about 7 billion tonnes of rain, said the press release. The rain also paired up with warm conditions, which in turn caused the major melting event, which resulted in them running off to the oceans that accelerate the global sea-level rise.
Greenland's melting is a cause of worry, as it is one of the most severe meltings the decade has seen which lost almost 8.5 billion tonnes of the surface mass in just one single day. The "code red" warning given by the UN climate report which was released last week said that the burning of the fossil fuels has resulted in the tragic change.
keyword: greenland, summit, Greenland ice-sheet, rain in greanland ice summit