Geography Notes: Types of Rainfall

Geography Notes: Types of Rainfall

Geography Study Notes on Rainfall and Its Types. These notes will also be useful for other competitive exams like bank PO, SSC, state civil services exams and Railway etc.

Rainfall has been classified into three main types

1. Relief or Orographic Rainfall

  • Relief rainfall occurs very frequently near mountains beside the sea.
  • Moisture-laden wind blows in from the sea.
  • Relief rainfall occurs when air has been blown over the sea and is then forced up over an area of high land.
  • This causes the air to cool and the moisture in the air condenses and rain falls.

2. Frontal rainfall

  • This occurs when a warm, tropical air mass comes in contact with a cold.
  • A warm, tropical air mass comes in contact with a cold, polar air mass.
  • Because the air in the warm front is well, warm then it rises over the cold front.
  • The air is cooled and condenses to form stratus cloud.
  • When the stratus cloud becomes saturated, it begins to precipitate.

3. Convectional rainfall

  • The sun heats the Earth’s ground. This causes the air to warm and become very hot.
  • The air rises upwards.
  • The air is then cooled and condenses to form cumulus cloud.
  • When the cumulus cloud is saturated, it begins to precipitate giving heavy and thundery showers.

Monsoon in India

⇛ The monsoon in India is brought by the Arabian Sea and the Bay of Bengal monsoon winds.

⇛ These Wings shed their Moisture which brings rainfall to the coastal regions of India and after that they enter the other landlocked regions of this country.

 India experience plenty of rainfall during the monsoon season.

⇛ The monsoon type climate of India is of a tropical type.

⇛ It can also be Express that India experiences a monsoon type Continental climate which is subtropical.

⇛ The climate of India is not cyclonic and cyclones are usually not formed here there from near the sea is once in a while.

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