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1
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- Exists between 15-20° of the equator
- The only truly winterless climates of the world
- Unique due to the prevalence of moisture
- Tropical Wet Climate (Af)
- Tropical Monsoon (Am)
- Tropical Savanna (Aw)
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2
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3
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- “f” stands for moist, from the German “feucht”
- A monotonous, seasonless climate with endless repetition of rain and sun
day after day (Avg. rain: 2.4” per month; avg. temperature is >64°F)
- “Night is the winter of the tropics.”
- High humidity makes for high sensible temperatures
- Is a poorly ventilated climate with the exception of thermal convection
due to extensive heating.
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4
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- Found primarily on windward (west-facing) coasts of southeastern Asia
- During high-Sun (i.e. wet) season there is extensive instability of air
masses, which brings torrents of rain
- During low-Sun (i.e. dry) season Am climate is dominated by offshore
winds (from a Asiatic high pressure center)
- Avg. rain is between 100-200”
- During the rainy season insolation is effectively blocked, which results
in temperature being slightly lower
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5
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- Cherrapunji, India receives an annual average of 425” of rainfall.
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6
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- The most extensive of the A climates, savanna has clear-cut seasonal
alternations of wet and dry periods
- High-Sun season brings the ITCZ and pronounced rainfall
- Low-Sun Season brings drought, including 3 or 4 rainless months
- Three seasons: wet (w/ high sensible temperatures, muggy air, and
frequent convective showers), dry (w/ clearing skies), and fire
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7
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8
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9
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Notes
