Short Notes on Distribution of Rainfall in India
Heavy Rainfall Regions:
Annual rainfall of over 400 cm is received over parts of western coast and north eastern India.
Scanty Rainfall Regions:
i. It is less than 60 cm in western Rajasthan and adjoining parts of Gujarat, Haryana and Punjab.
ii. Rainfall is also low in the interior of the Deccan Plateau, east of the Sahyadris.
iii. A third area of low precipitation is around Leh in Jammu and Kashmir.
Moderate Rainfall Regions:
i. The rest of the country receives moderate rainfall.
ii. Snowfall is restricted to the Himalayan region.
iii. Annual rainfall of over 400 cm is received over parts of western coast and north eastern India.
Variability of Rainfall:
i. Vagaries of monsoon are the result of variable nature of annual rainfall.
ii. Annual rainfall is highly variable from year to year.
Variability is high in the regions of low rainfall.
a. These regions are part of Rajasthan, Gujarat and the leeward side of the Western Ghats.
b. Areas of high rainfall are almost affected by floods.
c. Areas of low rainfall are drought-prone.