1. 2.7 Climatic Zones p
P. 75 fig. 5.1

2. Describe climatic conditions within selected zones p. 75
6 climate regions Each has sub-regions

3. Tropical Climates - Common
LOW latitudes (near equator)
Between the “Tropics!”
Temp. over 180C every day
Hence a relatively flat temperature line
warm ocean currents & prevailing winds = high precipitation.

4. REALLY ?!?!
NOTE: Even though the tropic climates are hot, they are not the hottest climatic region. Why not?
With rainfall comes constant cloud cover…which reduces the amount of sunlight reaching the earth.
What other effect can cloud cover have on temperatures in this region?
HINT: NIGHT….
Muggy!!! Hot, wet air

5. Tropical Wet & Dry - Climate graphs
Notice:
Relatively flat temperature line
Temperature relatively constant & high (19-270C)
Wet and dry seasons (monsoons)!!!

6. Tropical Wet - Climate graphs
Precipitation in each month is high
Temperature constant & high (19-270C)
Relatively flat temperature line

7. Dry Climates

8. Dry Climates All Dry climates: < 500mm precipitation annually
10-30 N & S
May be continental, leeward side of mountain or influenced by cold ocean current.
More evaporation than precipitation
Little vegetation
Often windy with No cloud cover
High daytime temperatures, Low nighttime temperatures
Temperatures may vary seasonally

9. Arid - Climate graphs

10. Semi-Arid - Climate graphs

11. REMEMBER!!!!
The main factor that characterizes the DRY climate zone is the amount of precipitation – that is, there is not much!

12. Temperate Mild Winter Temperate Mild Winter Mild winter ( above -3oC).
Mild winters usually caused by ocean currents
Mid Latitudes (30-60 N & S)
Usually near oceans (coastal)
Summer temperatures vary

13. Temperate Mild Winter Which is further north?? Marine West Coast
Mediterranean
Subtropical

14. Temperate COLD Winter
Locations generally affected by continentality Ex. Reason for colder winters!
Mostly inland (continental)
Generally the mid Latitudes (30-60 N)
Highest precipitation occurs during summer

15. Temperate COLD Winter Which is further north?? Subarctic
Continental Warm Summer
Continental Cool Summer

16. Polar Region High latitudes (+60o latitude) Near poles
Short cool summers
Never exceeds 10o C
Coldest, darkest & driest winters

17. Ice Cap Tundra Which is further north??
Notice how little precipitation occurs. WHY???

18. Highlands Elevations over 1000 m
Colder conditions than the lower lying areas surrounding it.
Climates from one highland to another will vary because of latitude, proximity to oceans

19. Patterns of climatic zones
Globally speaking where is each climatic zone concentrated?
Tropical ____
Dry ____
Temperate ___
Polar ____
Highland ____

20. Practice Question #2 p. 75 Part a Georgetown, Guyana Tropical
(Tropical wet)
Bombay, India
Tropical - Monsoonal
(Tropical Wet & Dry)
Montreal
Temperate Cold Winter
(Continental Warm Summer)
Alice Springs Australia
Dry (arid/semiarid)

21. Practice Question #2 p. 75 Part b
Montreal & Alice Springs have wide temperature ranges
Re. Temperature ; colder winter in Montreal
Re. precipitation; more in Montreal
Re. Months of summer; opposite summer months due to North & south Hemispheres

22. Practice Question #2 p. 75 Part c
Different hemispheres give opposite seasons
Question #2 p. 75 Part d
Montreal = temperate cold winter (Cont. Warm Summer)
Alice springs = Dry (Semi-arid)
Question #3 p. 77 is a good practice question too.