1. 2.6 Elevation & Climate
Understand the relationship between elevation & climate
Chapter 4 p. 71

2. Define Elevation p. 71
Elevation = height of a region above sea level
Figure 1.6 p. 8 shows cross section of Canada
Winnipeg 239 m
4000 m
Sea Level

3. DID YOU KNOW?
Air temperature decreases 2oC for every 300m increase in elevation
IT’S TRUE!! In fact, the higher up we go; the colder it gets; hence snow on mountain tops

4. 2.6.2 Describe the relationship between the elevation of a point and its temperature and precipitation.
See Figure 4.19 – Textbook…what is the relationship between temperatures and elevation????
Stop
La Paz & Rio de Janeiro have similar dist. from ocean & similar latitude. La Paz is much colder because of higher elevation .
La Paz, Bolivia
Elevation = 3600m
Coldest month = 9oC
Rio de Janeiro, Brazil
Elevation = 61m
Coldest month= 25oC

5. 2.6.2 Describe the relationship between the elevation of a point and its temperature and precipitation.
Relief Rainfall
Windward Side of mountain
Leeward Side of Mountain
Rain shadow – What side?

6. Relief Rainfall – Recap!!! Elevation and Precipitation
Windward = side of a mountain wind blows toward
Leeward = side of mountain opposite from windward
Rain shadow = region on leeward side of mountain that receives little precipitation because most rain dropped on windward side.

7. 2.6.3 Analyze the relationship between temperature and precipitation of a point and its location relative to a mountain system.
Cities higher up in a mountain have colder temperatures
Cities on leeward side have little rain
Cities on windward side have more rain
Match the city to the data
1113mm rain & 0oC coldest month
628mm rain & -12oC coldest month
Prince George
Vancouver
wind

8. Practice
#37 p. 71
#40 a & b p. 72
#41 a & b p. 72