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Question
Which type of rainfall occurs in most of the world? Why?
Answer in Brief
Solution
- Orographic rainfall occurs because of the obstruction of moisture laden clouds by the mountains and areas of high altitudes. These clouds are generally blown by the winds.
- Convectional rainfall occurs when the heated air from the earth’s surface rises upwards along with the water vapour and gets condensed when it reaches a higher altitude. Here the clouds carrying the water vapour are not carried away by the wind and hence, it rains in the same place. Due to this, convectional rainfall is limited to the equatorial calm belt.
- Convectional rainfall is regional in nature. There is a certainty in the convectional rainfall occurring in the equatorial areas.
- Comparatively, the orographic and cyclonic rainfall is less certain.
- Therefore, such areas are prone to very heavy rainfall, floods or droughts frequently.
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Rainfall and It's Types
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