Köppen Climate Classification Flashcards
Tropical Climates (Type A)
-Hot and Humid
- Found between 0° and 23.5° latitude (equatorial regions).
- Average monthly temperature remains above 18°C (64°F) throughout the year
- High precipitation due to intense solar heating and rising convection currents
Af - Tropical Rainforest (Equatorial Climate)
- Rainfall occurs throughout the year(no dry season).
- Annual rainfall often exceeds 2000 mm.
- Dense vegetation, evergreen forests, and high biodiversity.
- Example locations: Amazon Rainforest (Brazil), Congo Basin (Africa), Indonesia.
Am - Tropical Monsoon
- Seasonal variation in rainfalldue to monsoons.
- Short dry season, but overall high rainfall.
- locations: India, Bangladesh, Myanmar, Thailand.
Aw/As - Tropical Savanna (Wet-Dry Climate)
- Distinct wet and dry seasons.
- Aw (Winter Dry) – More common, dry season in winter.
- As (Summer Dry) – Rare, dry season in summer.
- Open grasslands with scattered trees (Savanna ecosystem).
- Example locations: Brazilian Cerrado, African Savanna (Kenya, Tanzania).
Dry Climates (Type B) → Arid and Semi-Arid
- Evaporation exceeds precipitation, resulting in dry conditions.
- Found in regions from moisture sources (oceans) or in rain shadow areas.
-deserts and grasslands fall under this category.
BWh - Hot Desert
- Very high temperatures (daytime highs exceed 45°C).
- Extremely low rainfall (<250 mm/year).
- Large temperature variations between day and night.
- Example locations: Sahara Desert (Africa), Thar Desert (India), Arabian Desert.
BWk - Cold Desert
- Colder winters, but still arid conditions.
- Example locations: Gobi Desert (China/Mongolia), Great Basin (USA).
BSh - Hot Semi-Arid (Steppe)
- More rainfall than deserts but still dry.
- Supports grasslands and sparse vegetation.
- Example locations: Sahel (Africa), Central India, Australia. -
BSk - Cold Semi-Arid (Steppe)
- Found in higher latitudes, colder winters.
- Example locations: Great Plains (USA), Central Asia (Kazakhstan, Mongolia).
Temperate Climates (Type C) → Mild Winters, Seasonal Variability
- Found 25° and 40° latitude, mainly along coastlines.
- Experience four distinct seasons
Cfa - Humid Subtropical
- Hot, humid summers and mild winters.
- Rainfall is evenly distributed throughout the year.
- Example locations: Southeastern USA (Florida, Georgia), China, Argentina.
Cfb - Marine West Coast
- Cool summers, mild winters, rainfall all year.
- Influenced by ocean currents and westerlies.
- Example locations: Western Europe (UK, France, Germany), New Zealand, Canada (Vancouver).
Cs - Mediterranean
- Dry, hot summers and mild, rainy winters.
- Vegetation: Olive trees, vineyards, and scrubland.
- Example locations: Spain, Italy, California (USA), South Africa (Cape Town)
Continental Climates (Type D) → Severe Winters, High Temperature Variation
- Found between 40° and 60° latitude, mostly in interior continents.
- Large differences between summer and winter temperatures.
- More extreme seasonal variations than temperate climates.
Dfa/Dfb - Humid Continental
-
Hot summers, cold winters.
- More precipitation than subarctic regions.
- Example locations: Midwest USA (Chicago, New York), Russia (Moscow), China (Harbin)
Dfc/Dfd - Subarctic (Taiga Climate)
-
Very long, harsh winters (temps below −40°C in winter).
- Short, cool summers.
- Dominated by coniferous forests (Taiga biome).
- Example locations: Siberia (Russia), Canada (Yukon, Quebec), Alaska.
Polar Climates (Type E) → Extremely Cold, Minimal Precipitation
- Found in high-latitude polar regions (above 66.5° N/S).
- Low precipitation but permanent ice and snow cover.
- Minimal vegetation, only mosses and lichens.
ET - Tun
-
Short, cool summers and extremely cold winters.
- Example locations: Greenland coast, Arctic Canada, Arctic Russia.
EF - Ice Cap
-
Always below freezing (0°C).
- No vegetation, only permanent ice and snow.
- Example locations: Antarctica, Greenland interior, Arctic Ocean.
Additional Category: Highland Climates (Type H) → Mountain Climat
- Not part of Köppen’s original system but added later.
- Found in high-altitude regions where climate changes with elevation.
- Temperature decreases with height (lapse rate: 6.5°C per 1000m).
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Example locations:
- Himalayas (India, Nepal, Tibet)
- Andes (South America)
- Alps (Europe)
- Rocky Mountains (USA/Canada)