Climatic Classification: Wladimir Peter Köppen ( UG Hons. 2nd year

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Climatic Classification: Wladimir Peter Köppen ( UG Hons. 2nd year
Climatic Classification: Wladimir Peter Köppen
( UG Hons. 2nd year)
by
Dr. Ruksanara Begum, Asstt. Prof. in
Geography, Barasat Govt. College
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Early Greek
View of
Earth’s
Climate
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Chart for
Determining
Köppen
classification
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The Köppen system uses a series of letters to designate climate:
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Koppen 2nd and 3rd letter designations
A climates
m – short dry season (monsoon)
s – dry summer (rare)
―Night is winter in the tropics‖—
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CLIMATE CLASSIFICATION
―Genetic‖ Classification
Köppen symbol
--warm, humid year-round
--controls: ITCZ
mT air masses
--warm, humid year-round; short
dry season
--Controls: ITCZ,
on-shore winds in rainy season
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--longer dry season than monsoon
--Controls:
ITCZ in rainy season (―summer‖)
STH in dry season (―winter‖)
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Main control on A climates:
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B climates
S– potential evapotranspiration exceeds
precipitation
W– potential evapotranspiration
is 2x precipitation
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--hot, dry year round
--Controls: STH
cT air masses
--not as dry as #4
--Controls: same as #4
-- seasonal rainfall due
to either ITCZ or Mid-latitude
cyclones
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--Controls --cold ocean currents
--e.g. Atacama Desert, Chile
--colder than #5 due to
higher latitude
--Controls: long distance
to moisture source; rainshadows
--similar to #7, but with more
summer convective rainfall
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THANK YOU
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