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Description
The Perito Moreno Glacier is a glacier located in the Los Glaciares National Park in the south west of Santa Cruz province, Argentina.
The 250 km2 ice formation, and 30 km in length, is one of 48 glaciers fed by the Southern Patagonian Ice Field located in the Andes system shared with Chile. This icefield is the world's third largest reserve of fresh water.
The Perito Moreno Glacier is one of only three Patagonian glaciers that is growing. The reason remains debated by glaciologists. The terminus of the Perito Moreno Glacier is 5 km wide, with an average height of 74 m above the surface of the water of Lake Argentino, in Argentina. It has a total ice depth of 170 m.
Periodically the glacier advances over the kidney-shaped "Lago Argentino" forming a natural dam which separates the lake into two halves when it reaches the opposite shore. With no escape route, the water-level on the Brazo Rico side of the lake can rise by up to 30 meters above the level of the other half. The pressure produced by the height of the dammed water finally breaks through the ice barrier underwater, leaving intact an ice bridge from the glacier to the peninsula. After some more time, the bridge is squeezed and breaks in a spectacular rupture event. This dam–ice-bridge–rupture cycle is not regular and it recurs naturally at any frequency between once a year to less than once a decade.
The last rupture occurred in March 2, 2012, and previously in 2008, 2006, 2004, 1988, 1986, 1980, 1977, 1975, 1972, 1970, 1966, 1963, 1960, 1956, 1953, 1952, 1947, 1940, 1934 and 1917. It ruptures, on average, about every four to five years.
As of February 2012, before the March 2 rupture, the glacier dammed the Brazo Rico. The water level there had risen 5.6 m.
The Perito Moreno glacier, located 78 km from El Calafate, was named after the explorer Francisco Moreno, a pioneer who studied the region in the 19th century and played a major role in defending the territory of Argentina in the conflict surrounding the international border dispute with Chile.
The 250 km2 ice formation, and 30 km in length, is one of 48 glaciers fed by the Southern Patagonian Ice Field located in the Andes system shared with Chile. This icefield is the world's third largest reserve of fresh water.
The Perito Moreno Glacier is one of only three Patagonian glaciers that is growing. The reason remains debated by glaciologists. The terminus of the Perito Moreno Glacier is 5 km wide, with an average height of 74 m above the surface of the water of Lake Argentino, in Argentina. It has a total ice depth of 170 m.
Periodically the glacier advances over the kidney-shaped "Lago Argentino" forming a natural dam which separates the lake into two halves when it reaches the opposite shore. With no escape route, the water-level on the Brazo Rico side of the lake can rise by up to 30 meters above the level of the other half. The pressure produced by the height of the dammed water finally breaks through the ice barrier underwater, leaving intact an ice bridge from the glacier to the peninsula. After some more time, the bridge is squeezed and breaks in a spectacular rupture event. This dam–ice-bridge–rupture cycle is not regular and it recurs naturally at any frequency between once a year to less than once a decade.
The last rupture occurred in March 2, 2012, and previously in 2008, 2006, 2004, 1988, 1986, 1980, 1977, 1975, 1972, 1970, 1966, 1963, 1960, 1956, 1953, 1952, 1947, 1940, 1934 and 1917. It ruptures, on average, about every four to five years.
As of February 2012, before the March 2 rupture, the glacier dammed the Brazo Rico. The water level there had risen 5.6 m.
The Perito Moreno glacier, located 78 km from El Calafate, was named after the explorer Francisco Moreno, a pioneer who studied the region in the 19th century and played a major role in defending the territory of Argentina in the conflict surrounding the international border dispute with Chile.
Image size
4288x2848px 7.28 MB
Make
NIKON CORPORATION
Model
NIKON D300S
Shutter Speed
1/2500 second
Aperture
F/5.6
Focal Length
26 mm
ISO Speed
200
Date Taken
Nov 18, 2012, 1:14:19 PM
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Diese Bilder begeistern mich. Leider kann ich nicht alle kommentieren, sonst sitze ich den ganzen Tag hier. Aber ich sehe mir Jedes genau an!