Glaciers in the French Alps has decreased by 26% over the past four decades, according to BBC Television and Radio BBC.
"According to recent studies, the area of glaciers in the French Alps reduced from 375 square kilometers in 1960 to 275 square kilometers in the late 2000s. Biggest losses were southern" — quoted by the BBC BBC statement Garden Marie (Marie Gardent) from the University of Savoy at the American Geophysical Union (AGU) in San Francisco.
Some southern Alps have lost their ice caps. For example, the glaciers have disappeared from the array Belladonna (peak height of about three thousand feet), and the glaciers in the mountain range Erken (altitude up to four thousand feet) are melting three times faster than the glaciers of Mont Blanc (altitude up to 5000 meters), located in the northern part of the Alps.
The area of the glaciers of Mont Blanc, where there are some of the most famous ski resorts in the world, now is 30 square kilometers, 31.5 square miles versus 40 years ago.
"We think that the glaciers are located in the northern tracts of southern melt slower because of the larger number of outliers where snow and more clouds. Besides, mountains to the north above the South" — explained the Garden.
In analyzing the data the researchers used satellite images, the accuracy of which is established at times visually.
"Often the automatic recognition of glaciers showed lack of them, when in fact it is known for certain about the existence of a glacier in the area concerned. Perhaps automation did not work because of the shadow of the neighboring peaks, which covered the glacier" — explained the Garden.