Landforms And Landscapes Flashcards
How much of today’s land mass is covered by ice?
10%
Where is today’s global ice located (%)?
85% Antarctica
10% Greenland
5% Tundra e.g. Alaska, Russia
What was the name of the last glacial period?
Pleistocene era
What are the characteristics of a polar environment?
Large snowy areas
Large expanses of ice
Low precipitation
Temperatures <50⁰C
What is an example of a polar Environments?
Antarctica, Greenland
What are the characteristics of alpine environments?
High altitude
Heavy snow in winter
Warmer summers
Temps 10-15⁰C
What is an example of an alpine environment?
Alps, Andes, Rockies, Himalayas
What are the characteristics of a glacial environment?
Heavy snow in winter
Warmer summers
What is an example of a glacial environment?
Greenland
What are the characteristics of a periglacial environment?
Permafrost
Found along the edges of polar regions
Short summers
Active layer of soil
What is an example of a periglacial environment?
Northern Canada, Northern Russia
What is the thermohaline system?
Part of the ocean circulation, caused by differences in water density. Differences in density are caused by water temps and salinity
What are ice lenses?
Formed when moisture, diffused within soil or rock, accumulates