Convectional type of rainfall is not prominent in India
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The amount of moisture in air is commonly recorded as relative humidity; which is the percentage of the total water vapour air can hold at a particular air temperature. The presence of warm, moist and unstable air and sufficient amount of the hygroscopic nuclei is a prerequisite condition for rainfall. The warm and moist air after being lifted upwards becomes saturated and clouds are formed after condensation of water vapour around the hygroscopic nuclei such as dust particles.
How much water vapour a parcel of air can contain before it becomes saturated (100% relative humidity) and forms into a cloud (a group of visible and tiny water and ice particles suspended above the Earth’s surface) depends on its temperature. Warmer air can contain more water vapour than cooler air before becoming saturated.
How much water vapour a parcel of air can contain before it becomes saturated (100% relative humidity) and forms into a cloud (a group of visible and tiny water and ice particles suspended above the Earth’s surface) depends on its temperature. Warmer air can contain more water vapour than cooler air before becoming saturated.
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Explanation:
Convectional type of rainfall is the type of rainfall in which the warm air rises up and expands then, reaches a cooler layer and saturates, then condenses mainly in the form of cumulus or cumulonimbus clouds. It mostly occurs in the equatorial regions. Rainfall in India is mostly brought by the southwest monsoon winds.
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