Question

What is the latitudinal extent of the low pressur belts?

Answer 1

The latitudinal extent of the low-pressure belts is 0 to 5 degrees north and south.

In the Subpolar region around latitudes 60° to 65° North and South of the Equator, the rotation of the earth forces up the bulk of the air towards the Equator, creating a low-pressure belt in this region. This low-pressure belt extends from 0 to 5° North and South of the Equator.

This belt expands from equator to 10º N and 10 º S latitudes. Due to the enormous heat horizontal movement of air is not present here and only conventional currents are there. Therefore, this belt is called the doldrums (the zone of calm) due to the virtual absence of surface winds.

Areas where the air is warmed often have lower pressure because the warm air rises. These areas are called low-pressure systems. Places where the air pressure is high, are called high-pressure systems. A low-pressure system has lower pressure at its center than the areas around it.

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Answer 2

Answer:

This low-pressure zone stretches from 0 to 5 degrees north and south of the Equator. The vertical rays of the sun cause considerable warmth here. As a result of the convection current, the air expands and rises, causing low pressure to occur here. This low-pressure band is also known as the doldrums because it is completely calm with no breeze.

Explanation:

1. The Equatorial low pressure belt extends between the 5N and 5S parallels.

2. The latitudinal extent of the subpolar low pressure belt in both hemispheres is between 55 and 65 parallel.

The rotation of the globe pushes up the bulk of the air towards the Equator in the Subpolar zone about latitudes 60° to 65° North and South of the Equator, forming a low-pressure belt in this region. This low-pressure zone stretches from 0 to 5 degrees north and south of the Equator.

Equatorial low pressure belt

Because there is little surface wind, this is also known as the belt of quiet. Throughout the year, this region receives vertical rays from the Sun, causing air to expand. Lighter air ascends, causing convection currents to form in the atmosphere.

• A pressure belt is a region of the earth that is dominated by either high pressure cells or low pressure cells. High or low-pressure belts characterise the horizontal distribution of air pressure across latitudes.

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