Introduction to the Physical Envroiment Midterm

Geography
Physical Geo is about…
landscape appreciation and understanding why landscapes loo the way hey do
Geo is science that studies relationships among
1.natural systems
2.Geographical Areas
3.Society
4.Cultural Activities
5.Interdependence of all of these over space
Weathering
breakdown of rocks and minerals by the physical and chemical processes of erosion
Mass Movement
The downslope movement of sediment, soil and rock material as a single unit
Erosion
process by which soil and rock are removed from the Earth’s surface by natural processes such as wind or water flow, and then transported and deposited in other locations
Deposition
Laying down of sediment transported by wind, water, or ice
Tundra climates
-N America, Sweden, Finland, Russia, coastal Greenland
-Warmest month above 0 degrees but below 10, extremely low winter temps (average -25c Jan)
-Low precipitation (<300mm) except coastal Greenland (750-1100 mm)
-weather is dominated by the prolonged winter season with anticyclonic conditions
Polar ice cap climates
-Extremely cold and weather dominated by high pressure
-Summer generally below0 and winter below -40
-Annual precipitation <100mm-cold deserts
-strong winds can blow if the centre of ice caps-extreme wind chill
Temperature declines with altitude due
to…
adiabatic processes: expansion of body of air without loss or gain of heat
Most consistent feature of mountain climate…
is the fall of air pressure with height
climate system
interactive system consisting of 5 major components: atmosphere, hydrosphere, cryosphere,land surface, biosphere
biomass
total dry weight of living organic matter

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