Rise In Temperature Causes North Pole to Shift East: Study
Published in the Geophysical Research Letters, a study has found that loss of ice sheets from the North Pole has caused it to shift east.
Scientists said the pole was seen shifting southeast towards northern Labrador, Canada, at a rate of about 6 centimeters per year between 1982 and 2005. But, the shift is now occurring at a little faster pace, that is, at a speed rate of more than 21 centimeters per year towards Greenland.
The same was reported in the journal Nature. Researchers said the shift to the North Pole is occurring due to global warming. The study was carried out by the University of Texas, Austin, and the data regarding the same was collected by the NASA's Gravity Recovery and Climate Experiment (GRACE).
It is learnt that the two geographical poles of the planet don't have fixed location. Distribution of snow, rain and humidity gets changed annually and poles also shift in a circular pattern.
Earth's gravity field changes are measured by two probes by the GRACE and these can be used to study the shifts in the distribution of ice and water. Using GRACE data, Jianli Chen, a geophysicist who led the study, said that 90% of the polar shift after 2005 occurred due to loss of ice and rise in sea level.