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Köppen Classification System

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Presentation on theme: "Köppen Classification System"— Presentation transcript:

1 Köppen Classification System

2 90 60 30 30 60 90

3 Climate Classification Looks At…
Atmosphere Hydrosphere Geosphere Biosphere Cryosphere

4 In your groups, read about your assigned climate and present the following to the rest of the class:
Name and Letter of your climate Description of the main climate type Atmosphere Hydrosphere Geosphere Biosphere Cryosphere (if applicable) Any subgroups of your climate, including descriptions General latitudes where this climate is found Relationship to high or low pressure

5 Humid Tropical - A Temperatures average around 25 C or more each month
Very small temperature range Yearly precipitation is high – usually more than 200 cm All months are wet – if there is a dry season, it is very short Found along equator

6 Humid Tropical - A Wet Tropics
Af – every month has 6 cm or more of precipitation Am – Short dry season Tropical Wet and Dry Aw – Well-defined winter dry season As – Well-defined summer dry season

7 Dry - B Potential evaporation exceeds precipitation
Very little, if any, precipitation each year Found between N and S Steppe – BS – Semi-arid – slightly more humid Desert – BW - Arid

8 Humid Middle-Latitude with
Mild Winters - C Average temperature of coldest month is under 18C and above -3C Typically in sub-tropical regions – N and S

9 Humid Middle-Latitude with
Mild Winters - C Dry-Summer Subtropics – Csa, Csb West sides of Continents Dry summers Also called Mediterranean Climate

10 Humid Middle-Latitude with
Mild Winters - C Humid Subtropical – Cfa Southeastern US Hot, humid summers Afternoon and evening thunderstorms likely Winters are drier, frost possible

11 Humid Middle-Latitude with
Mild Winters - C Marine West Coast – Cfb Western side of continents Dominated by onshore flow of oceanic air Mild winters, cool sumers Ample rainfall year round

12 Humid Middle-Latitude with
Severe Winters - D Characterized by extreme winters Land-controlled climates Absent in the Southern Hemisphere

13 Humid Middle-Latitude with
Severe Winters - D Humid Continental – Dfa, Dwa Central and eastern portions of North America Winter and summer temperatures considered severe Generally more precipitation in the summer

14 Humid Middle-Latitude with
Severe Winters - D Subarctic – Dfc Often referred to as the taiga Winter is considered dominant Warm, short summers Produce the highest annual temperature ranges Low annual precipitation

15 Polar - E Mean temperature of the warmest month is below 10°C (50°F)
Temperatures in the summer are still cool Low water vapor in the air Low precipitation Low evaporation

16 Polar - E Tundra Climate – ET Treeless climate
Almost exclusively found in Northern Hemisphere Winters are severe, summers are cool High annual temperature ranges Low precipitation

17 Polar - E Ice Cap Climate– EF
Does not have a single monthly mean above 0°C No vegetation growth Permanent ice and snow Confined to the ice sheets of Greenland and Antarctica

18 Highland - H Cooler and wetter than nearby places because of higher altitude Seasonal temperature cycles are similar to the surrounding areas Slope and orientation to the sun also affect temperature and moisture


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