Along the Siberian coast of the Chukchi Sea an unusual and very strong anomaly has been recorded, adversely affecting the ice thickness in this region. According to scientists, this anomaly affects the thickness of sea ice, because its movement is counterclockwise, centered on the North Pole.
The movement of sea ice in the Arctic usually occurs clockwise, when the Earth turns to the east, moving under the ice. It is necessary to take into account the fact that the ice is stationary relative to the rotation of the Earth and it only seems that ice moves clockwise, but in fact, the ice remains in place, while the Earth moves under it.
At the moment it is not known what caused the appearance of this anomaly observed in 2017.