Question

Compare and contrast conventional and orographic rainfall

Answer 1

(i) Relief rainfall is caused when the mountain forces the air to rise along the up slopes of the mountain.(ii) It takes place on the wind­ward side of the mountain and the leeward side gets very less rain and is known as the rain shadow area.(iii) It takes place in the mountain­ous region, e.g., Western Ghats. High pressure belt to the sub polar low pressure belt.Convectional Rainfall (Noon Rain)(i) Rainfall is caused by verti­cal ascent (convection) of heated air.(ii) It is in the form of heavy downpour and is accompa­nied with thunder and light­ening. It is for a short time.(iii) It takes place in the equato­rial region daily and in the interiors of the continents in summer.