Satellites notice the glacier “snow piracy”
A glacier in Antarctica stole ice from neighbors under 18 years of age, and has never been seen before.
The ice platform of the western Antarctic to divide
Pierre Dueax/University of Leds
In Antarctica, a glacier is committing a “ice piracy”, which means that it stole ice from a neighboring glacier, according to scientists who have never seen before.
Previously, it is believed that this activity has taken place for over a hundred or thousands. However, high -rising satellite observations reveal that A massive glacier is cutting ice from his neighbors, he is more than 18 years old
Researchers at the University of Leeds at Leeds in England said that this change in the direction of ice flow can be observed directly in Antarctica, and its invention represents an important step to understand the future of Antarctica and its cooperation to sea level.
Their research has been published Journal the CreosphereThe Europa Press Agency reported on Thursday.
A study led by the University of Leeds shows the acceleration of seven ice chains in Western Antarctic. One of them doubled its speed (87%) on the ice and sea border between 2005 and 2022, and three were accelerated between 60% and 84% in the same period.
Six of these streams reached an average speed of more than 700 meters per year by 2022, equivalent to the length of seven soccer fields in a year — a very fast speed for ice.
The group used satellite data to measure ice speed change in the Pope, Smith and Kohler (PSK) area of West Antarctica.
Scientists have discovered that ice flows have accelerated an average of 51% since 2005, on the base line, glaciers and ice platforms float.
The base lines demonstrate the instability of the ice layer, as their position reflects the imbalance with the surrounding sea and affect the flow of continental ice.
However, the investigation team has found a particularly surprising fact. In all other glaciers in the region, the widespread contrast to the widespread acceleration between 2005 and 2022, while the snow flow in Kohler West has decreased by 10%.
Neighborhood Glacier, Kohler East, as well as Smith West Glacier, has been observed in the speed of Smith West glaciers, which flows at speeds of 560 meters per year in 2005 in 2005.
Currently, many glaciers around Antarctica are responding to climate change that flows into the sea.
When the flow of glaciers accelerate, its ice is cleared at the same time, but Kohler West Eyes Stream decreases.
“We believe that the deterioration of the Kohler East is due to the diversion of ice flow to his neighboring Kohler East, which is noticed in the Kohler West Glacier. This is due to a great change in the slope of the Kohler West surface, perhaps due to a very different adult rates in the neighboring glaciers”. Selley said.
Kohler East Ice Stream flows fast and tune from Kohler West Eyes. In practice, the action of “piracy of ice”, in which the snow flow is redirected from one glacier to another, and the fast glacier is essentially ‘stealing’ ice to its neighbors.
