ALPECOLE
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Snow and perennial ice

Review test

 

  1. How does snow influence the biotic environment??
     
  2. What influence on snow distribution does continentality have?
     
  3. The elements Na and Cl are dominant in a snowpack (meltwater) analysis in the French Alps. Also the Ca-value is high. Explain the origin of these chemical elements in the snowpack. Which other elements are often found?
     
  4. Write the energy balance equation and explain the different components and their influence. In addition explain other energy fluxes within and under the glaciers.
     
  5. Explain the difference between cold, polythermal and temperate glaciers. Give examples of areas, where these glacier types occur.
     
  6. Which factors determine the ground temperatures in permafrost environments?
     
  7. Which ice forms in permafrost ground can you name? Explain the differences between the syngenetic and epigentic freezing process.
     
  8. Explain the process chain between climate and glacier.
     
  9. Why is snow cover an important factor in the climate-permafrost relationship?
     
  10. Explain the flow of a glacier and draw a scheme with a typical vertical flow profile.
     

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29 August 2011
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