Question

what is wind explain 3 different types of wind
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Answer 1

Answer:

Types of Wind

1. Planetary Winds:

The winds blowing through­out the year from one latitude to another in response to latitudinal differences in air pressure are called “planetary or prevailing winds”. They involve large areas of the globe.

2. Trade Winds:

These are extremely steady winds blowing from sub-tropical high pressure areas (30°N and S) towards the equatorial low pressure belt. These winds should have blown from the north to south in Northern Hemisphere and south to north in Southern Hemisphere, but, they get deflected to the right in Northern Hemisphere and to the left in Southern Hemisphere due to Coriolis effect and Ferrel’s law. Thus, they blow as north eastern trades in Northern Hemisphere and south eastern trades in Southern Hemisphere.

They are also known as tropical easterlies, and they blow steadily in the same direction. They are noted for consistency in both force and direction.

3. The Westerlies:

These winds blow from sub tropical high pressure belts towards sub-polar low pressure belts. The westerlies of Southern Hemi­sphere are more stronger and constant in direction than Northern Hemisphere. These winds develop be­tween 40° and 65°S latitudes and these latitudes are known as Roaring Forties, Furious Fifties and Shriek­ing Sixties.

4. Periodic Winds:

Periodic winds change their direction periodically with the change in season, e.g., Monsoons, Land and Sea Breezes, Mountain and Valley Breezes.

5. Local Winds:

The local difference in tempera­ture and pressure causes local winds. It is of four types: hot, cold, convectional and slope.

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