User:Csviu/Greenland

= Greenland =

The Qaqugdluit mountainous area, at 70.13333°N, -51.73333°W on the south side of Nuussuaq Peninsula, shows glacier stages after the end of the last glacial period. These glacier stages date back to between the Atlantic and Preboreal stages of the Holocene.

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The snowline of the oldest (VII) of the three Holocene glacier stages (V – VII) ran c. 230 m deeper, i.e. at c. 570 m in height.

The four youngest glacier stages (IV-I) are of a Historical age. They have to be classified as belonging to the global glacier advances in the years 1811 to 1850 and 1880 to 1900 (“Little Ice Age”), 1910 to 1930, 1948 and 1953.

In 1979 the glaciers ended between 660 m and 140 m above sea level.

The snow line rose steadily during the period to 1979, by which time it had reached 800 m in height. The current snow line runs nearly unchanged.

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During the oldest Postglacial Stage VII, an ice stream network completely covered the landscape as valley glaciers joined each other.

Its nourishing areas consisted of high-lying plateau-glaciers and local ice caps.

Due to the 230 m uplift of the snowline since 1979, corresponding to a warming of approximately 1.5 °C, there merely exists a plateau- glaciation with small glacier tongues hanging down on the margins that nearly did not reach the main valley bottoms any more.