The scientists found a record of hot water in Antarctica, The team of scientists first monitored the availability of hot water at important points below the Antarctic glacier.
An alarming finding that indicates the gradual melting of the ice sheet while raising concerns about rising sea levels worldwide.
“Warm water in this part of the world, as far as it looks, must warn us all of the possibility of terrible changes on this planet caused by climate change,” the researcher said. record of hot water in Antarctica.
If these waters melt the Antarctic glaciers, they will result in changes in sea level in the more inhabited parts of the world.
The recorded warm water – more than two degrees above freezing – flows below the Thwaites Glacier, which is part of the western Antarctic ice sheet.
This discovery was made in the base zone of glaciers – where ice flows like being on an ice shelf between fully lying on the ground and swimming in the sea, and which is key to the overall speed of glacier retreat. now the scientists found a record of hot water in Antarctica.
Only the death of the Thwa can have a significant impact throughout the world.
This will dry out a mass of water that is about the size of England or the state of Florida and currently accounts for about 4 percent of global sea level rise.
Some scientists consider Thwaites to be the most threatened and most important glacier in the world in terms of future global sea level rise – its collapse will raise global sea level by almost one meter and possibly exceed existing populated areas.
While glacier recession has been observed over the past decade, the cause of this change has not been identified.
The fact that such hot water has just been recorded by our team along part of the Thwaites base zone, where we know the glaciers are melting, suggests that there may be an unstoppable retreat that can have a major impact on the situation. Sea levels rise all over the world.
Measurements were made in early January after the research team made an access hole as deep as 600 meters and 35 centimeters and installed an ocean meter to measure water moving below the surface of the glacier.
This device measures water turbulence as well as other properties such as temperature. The result of turbulence is mixing fresh melt water from glaciers and salt water from the sea.
He discovered for the first time that marine activity under the Thwaites Glacier was accessible through holes and that scientific instruments were used to measure the underlying turbulence and mix in the sea.
The hole was discovered on January 8 and 9 and water under the glacier was measured on January 10 and 11.
Aurora Bazinski, a graduate of New York University who took turbulence measurements, said: “From our observations in the ocean zone in the base zone, we have observed not only the presence of hot water, but also the level of turbulence and thus effectiveness in melting the ice bed. ”
Another researcher, Keith Nichols, a scientist from the British Antarctic Survey, added: “This is an important result, because this is the first time turbulent scattering measurements have been made in the critical base zone of the western Antarctic ice sheet.”
This research was supported by the National Science Foundation with a grant of $ 2.1 million to $ 2.1 million (PLR-1739003).
This grant is part of the International Glacier Cooperation Thwaites (ITGC), conducted by the British Environmental Research Council and the National Science Foundation and which is used by scientists to gather data needed to determine whether the collapse could occur starting in the next decade or century.
Other field team members include researchers from Penn State, Georgia Tech and the British Antarctic Survey.