Tropical Convergence Zones Flashcards

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1
Q

A zone of divergence is

A

Where winds go in different directions

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2
Q

Converging winds include

A

The trade winds, which meet at the equator in a zone termed the Inter-Tropical Convergence Zone

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3
Q

What are horse latitudes?

A

Two zones of divergence which occur in the subtropical high pressure zones where the winds are usually fairly light

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4
Q

What is climate like in the horse latitudes?

A

Clear skies, abundant sunshine, low rainfall and calm winds

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5
Q

When air masses from different source regions meet

A

Air at the edge begins to use colder air to force the warmer air upwards
Condensation takes place in upper parts - a The front

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6
Q

Where the trade wind belt of the northern latitudes meets the trade wind belt if the southern latitudes within the equatorial belt

A

An inter-tropical front is formed

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7
Q

The weather associated with an inter tropical front depends on

A

Whether the front has formed over the oceans or the continents

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8
Q

Air masses converging towards the inter-tropical front over oceans are

A

Most in the lower layers and fairly dry at higher levels
At convergence there is some instability and large cumulus clouds appear leading to intense shower and thunder conditions

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9
Q

Within Equatorial areas the vertical movement of air through convection produces convectional rain. This belt of Equatorial rainfall moves

A

North or South

With the Suns declination of about 5 degrees latitude either side of the equator

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10
Q

A zone of convergence is

A

Where winds meet

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