Record melt: Greenland lost 586 billion tonnes of ice in 2019
Nuuk: Greenland lost a record amount of ice during an extra warm 2019, with the melt massive enough to cover California in more than four feet of water, a new study said.
After two years when summer ice melt had been minimal, last summer shattered all records with 586 billion tons (532 billion metric tons) of ice melting, according to satellite measurements reported in a study Thursday.
That's more than 140 trillion gallons (532 trillion litres) of water.
That's far more than the yearly average loss of 259 billion tons (235 billion metric tons) since 2003 and easily surpasses the old record of 511 billion tons (464 billion metric tons) in 2012, said a study in Nature Communications Earth & Environment. The study showed that in the 20th century, there were many years when Greenland gained ice.
Not only is the Greenland ice sheet melting, but it's melting at a faster and faster pace, said study lead author Ingo Sasgen, a geoscientist at the Alfred Wegener Institute in Germany.
Last year's Greenland melt added 0.06 inches (1.5 millimeters) to global sea level rise.
That sounds like a tiny amount but in our world it's huge, that's astounding, said study co-author Alex Gardner, a NASA ice scientist. Add in more water from melting in other ice sheets and glaciers, along with an ocean that expands as it warms - and that translates into slowly rising sea levels, coastal flooding and other problems, he said.
While general ice melt records in Greenland go back to 1948, scientists since 2003 have had precise records on how much ice melts because NASA satellites measure the gravity of the ice sheets. That's the equivalent of putting the ice on a scale and weighing it as water flows off, Gardner said.
As massive as the melt was last year, the two years before were only on average about 108 billion tons (98 billion metric tons). That shows that there's a second factor called Greenland blocking, that either super-charges that or dampens climate-related melting, Gardner said.
In the summer, there are generally two factors in Greenland's weather, Gardner said. Last year, Greenland blocking - a high pressure over Canada that changes the northern jet stream - caused warm southern air to come up from the United States and Canada and flow into Greenland, forcing more melting.
In 2017 and 2018 without Greenland blocking, cooler Arctic air flowed from open ocean into Greenland, making summer milder, he said.
This year, Greenland's summer melt has been not as severe, closer to normal for recent times, said Ruth Mottram, an ice scientist at the Danish Meteorological Institute, who wasn't part of Sasgen's research.
Mottram and several other outside scientists said Sasgen's calculations make sense. In her own study this month in the International Journal of Climatology, she found similar results and also calculated that Greenland coastal regions have warmed on average 3 degrees (1.7 degrees Celsius) in the summer since 1991.
The fact that 2019 set an all-time record is very concerning, said New York University ice scientist David Holland, who wasn't part of either study.
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South zone finalists announced at WAVES VFX challenge in Bengaluru
Bengaluru: The South Zone round of the WAVES VFX Challenge took place today in Bengaluru, organized by the Association of Bangalore Animation Industry (ABAI).
The day-long competition brought together talented participants from across southern India, with the goal of selecting top finalists who will go on to represent the region at the national finals next month during the WAVES Summit in Mumbai.
Finalists were selected in three categories:
Student Category
Winner: Soumya Das
Runner-up: Gagan HP
Professional Category
Winner: Mohamad Javeed
Runner-up: S Sai Chandan
Enthusiasts Category
Winner: Gagan Ajai
Over 1,500 entries were received from students, working professionals, and VFX enthusiasts, all centered around the theme “Super Hero Power.” Out of these, 14 entries were shortlisted to compete in today’s final round. One winner and one runner-up from each category were chosen to represent the South Zone in Mumbai.
ABAI Secretary R.K. Chand appreciated the strong participation and encouraged industry professionals to attend the Mumbai summit, which will host well-known personalities from films, advertising, and creative sectors. He also mentioned that the WAVES Challenge was recently launched in Bengaluru by Sanjay Jaju, Secretary, Ministry of Information and Broadcasting.
The event was inaugurated by Dr. Sagar Gulati, Director of the School of Creative Design and Information Technology at Jain (Deemed-to-be University), the zonal partner for the competition.
The day also featured two special sessions led by industry experts. Vijay Selvam from the global VFX studio MPC held a masterclass titled “Concept Reality,” where he discussed lighting, animation, compositing, and photorealistic effects. Students got the chance to interact with him during a Q&A session.
Another session was conducted by Rakesh H, Lead Head at The Mill, who spoke about how visual effects are used in advertising. Nearly 100 students attended these sessions, gaining valuable industry insights and learning opportunities.
