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Winds — Geography STD 11 Arts — Question

Gujarat BoardEnglish MediumSTD 11 ArtsGeographyWinds3 Marks
Question
Explain briefly about east winds and westerly winds.
✓

Answer

$1.$ East winds:
  • These winds are Y in the tropics from the equatorial high pressure belt to the equatorial low pressure belt in both the hemispheres.
  • The east wind is constantly blowing in one direction at a steady speed.
  • These winds are blowing from the east with a slight twist due to the rotational speed of the earth.
  • Hence these winds are called east winds.
  • These winds have been used for sea trade in the past as they are moving at a steady pace.
  • Hence they are also known as “commercial winds”.
  • According to Feral's law, the wind blows to its right in the northern hemisphere.
  • It is seen coming from the northeast corner.
  • That is why they are called "East Wind".
  • In the Southern Hemisphere, it is known as a fiery trade wind because it blows from the corner of the fire.
  • As these winds move towards warmer regions, they become warmer, which increases their ability to store moisture.
  • But the power to give rain decreases.
$2.$ Western winds:
  • These winds are y in both the hemispheres towards the equatorial high pressure belt in the temperate zone regions.
  • These winds seem to come from the west with a slight gust of wind so they are known as westerly winds.
  • These winds blow from southwest to southeast in the northern hemisphere.
  • Hence it is called southwest westerly wind in the northern hemisphere and northwest westerly wind in the southern hemisphere.
  • It is also called "counter-trade winds" as the direction of westerly winds is opposite to the direction of commercial winds.
  • These winds get colder as they move from warmer regions to colder regions.
  • The western regions of Europe, Canada, Chile, etc., located on the west coast of the continents receive perennial rainfall.

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