The upper part of the glacier in Greenland is melting rapidly Facts
As it turned out, the rate of melting of the top layer of the cover. Greenland in July 2012 proved to be the fastest in 30 years. The process involved the thin ice of the outlying coastal and central areas in the 3 km thick. By mid-July is 97% of harp shell subjected to thinning at high temperatures.
This phenomenon in the scientific community got its name — the "heat island", or large mass of heated air, place over Greenland from the end of May. The dome is much more powerful than the previous one and occupies a large area. Of course, almost half of the ice in Greenland melts each year, but in some places, the ice freezes after a few hours back. In 2012, the situation is slightly different.
Dynamics of melting ice in Greenland during the period 8 (left), 12 July (right) 2012. During this time, the percentage of melting has increased from 40% to 97%.
Surprising that even at the station in the center of the island summit at an altitude of 3.2 km above sea level, scientists have recorded signs of thawing, which has not happened since 1889. At the station warmer. While experts say that similar phenomena occur every 150 years, which seems to converge with the existing records of meteorologists. But if in the next year to continue the trend continues, it could be considered a disaster caused by global warming, with the rise of the world-Ocana and all other negative consequences.
The path of the iceberg breakaway Petermann Glacier. July 21, 2012.
In favor of the general warming talk and new cases of the formation of icebergs break off from the Petermann Glacier in northwestern Greenland. In July 2010, there was a similar episode, iceberg had an area of 251 km2. The current block of ice in half.
The data obtained on melting so scientists have put a dead end, and they first decided that the performance of devices crept error. Just compare a number of different satellites finally led scientists to believe in what is happening in Greenland.