SS2 First Term Geography Lesson Note – Climatic Classification

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WEEK 9 & 10                                                    

TOPIC: CLIMATIC CLASSIFICATION

CONTENT:

(i) Greek climatic classification

(ii) Koppen’s climatic classification

SUB-TOPIC I: GREEK CLIMATIC CLASSIFICATION

Climatic classification is a conscious attempt at grouping different climates with similar characteristics together. This is because climate is not the same in every place.

The most common classification of climates are:

1. Greek classification
2. Koppen’s classification

GREEK SYSTEM OF CLASSIFICATION OF CLIMATE

This is the earliest, simple and rough climate classification put forward by the Greek people. The Greek made their classification on the basis of Temperature. On this basis, the world is divided into climatic zones namely (i) Torrid zone (ii) Temperate zone and (iii) Frigid zone

1. TORRID ZONE: This zone is found within the tropics (i.e. tropic of Cancer and Capricorn). It is very hot because of its nearness to the equator and the temperature is high throughout the year.
2. TEMPERATE ZONE: This zone is found between the torrid and frigid zone. It has moderate temperature and has seasonal differences in temperature.
3. FRIGID ZONE: This zone is found within the Polar Regions (Arctic and Antarctic). The zone is generally cold and has lots of ice-caps.

CRITICISMS OF GREEK CLASSIFICATION

1. The problem with this classification is that it emphasises temperature leaving out other climatic factors.
2. It is too simple.
3. It ignores the influence of latitude and altitude, presence of vegetation and wind.
4. It fails to recognise climates such as the humid and the desert regions.

EVALUATION

1. Define climatic classification.
2. What are the 3 zones of Greek classification of climate?
3. Mention four disadvantages of Greek classification of climate.

SUB-TOPIC 2: KOPPEN’S SYSTEM OF CLASSIFICATION

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