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Pasterze Glacier

A cache by spuzva Send Message to Owner Message this owner
Hidden : 07/07/2008
Difficulty:
2.5 out of 5
Terrain:
3.5 out of 5

Size: Size: not chosen (not chosen)

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Geocache Description:

Pasterze is the longest glacier in Austria and in the Eastern Alps, at approximately 9 km in length, reaching from 3,463 m to 2,100 m above sea level. It lies in the Hohe Tauern mountain range directly beneath Austria's highest mountain, the Großglockner.



Glaciers: A glacier is a permanent body of ice, consisting largely of recrystallized snow, that shows evidence of downslope or outward movement due to the pull of gravity. Except for a thin surface layer that is chilled below freezing each winter, the ice throughout many glaciers is at the pressure melting point, the temperature at which ice can melt at a particular pressure. Under these conditions melt water and ice can exist together in equilibrium. In these glaciers, which are found mainly in low and middle latitudes, ice is at the pressure melting point throughout. Glaciers can only form at or above the snowline. The snowline is a line that marks the intersection of the land with an irregular surface representing the lower limit of perennial snow. Glacier ice is essentially a metamorphic rock that consists of interlocking crystals of the mineral ice that has been deformed by flow owing to the weight of overlying snow and ice. Newly fallen snow is very porous, having a density less than a tenth that of water. Air easily penetrates the pore spaces where the delicate points of snowflakes gradually disappear through evaporation. The resulting water vapor then condenses, mainly in constricted places near the centers of ice crystals. In this way, snowflakes gradually become smaller, rounder and thicker and the pore spaces between them disappear. Snow that survives a year or more and achieves a density that is transitional between snow and glacier ice is called firn. Ultimately, firn passes into true glacier ice when it becomes so dense that it is no longer permeable to air. Although now a rock, such ice has a far lower melting point than any other naturally occurring rock, and its density of about 0.9 g/cm3 means that it will float in water. Source: The Dynamic Earth an introduction to physical geology, Brian J. Skinner, Stephen C. Porter, Published by John Wiley and Sons, Inc, 1989

Pasterze Glacier with it´s 10km lenght, a surface of area cca 20km2 and a depth of XXX m, the Pasterze glacier is by far the longest glacier in Eastern Alps. It´s name origiates from a slavic word "Pastir" (shepherd or small pasture). Perhaps this demonstrates that there is a grain of truth in the legend of the bold inhabitants of the pastures in the area. Around the middle of the last century the glacier moved toward the area the area of Freiwandeck and was about YYY meters larger. The Pasterze glacier may be reached by cable car (but it is not necessary). A safe path makes it possible to reach the icy slopes. A number of altimetric signs indicate, that the Paterze has retreated over the past few decades. In 1963 the masess of ice still reached the station of cable car bellow. Here another attraction of the Glocknerr massif begins, the educational trail along the glacier, which permits one to reach the Glockner refuge (Glockner house) in an hours walk.


For the succesfull log, pls, send me an answer of the next questions:
1. What is XXX ?
2. What is YYY ?
3. What is the name and altitude of the Peak on the left side of glacier (view from down to the top) ?
4. What is the altitude difference of the level of the glacier in the years:
*1960-1970
*1970-1990
*1990-2005
*1960-29.6.2008 (N47.04.465, E012.44.681)
5. The coordinates of 29.6.2008 are the coordiates of the "end" of glacier. Pls, send me upload the picture of this place to your log. BUT MOST IMPORTANT CONDITION FOR LOG - SEND THE DISTANCE BETWEEN THE END OF THE GLACIER (DAY OF YOUR VISIT) AND COORDINATES OF 29.6.2008
6. Pls, send the picture of the point of the earthcache coordinates.
7. How do you call snow with density transitional between snow and glacier and one or more years old?

ATTENTIONWALKING ON THE GLACIER ON YOUR OWN RISK



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