Question

Difference between convectional rainfall and orographic rainfall point by point

Answer 1

Relief Rainfall (Orographic) :

•  Relief rainfall is caused when the mountain forces the air to rise along the up slopes of the mountain.

•  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.

• 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) :

• Rainfall is caused by verti­cal ascent (convection) of heated air.

•  It is in the form of heavy downpour and is accompa­nied with thunder and light­ening. It is for a short time.

•  It takes place in the equato­rial region daily and in the interiors of the continents in summer.