Distribution Of Precipitation In The Country
Wind, Storms And Cyclones of Class 7
- Areas of Heavy rainfall: Areas which get rainfall of 200 cms and above are Assam, The Ganga Delta, the Western Ghats and the Western Coastal regions and the mountainous regions of Himachal Pradesh.
- Areas of Moderate Rainfall: Areas which get annual rainfall between 100 cms to 200 cms are Madhya Pradesh, Orissa, Chota Nagpur, Western Bengal, Bihar, Eastern UP, North-Eastern Punjab; Eastern parts of Tamil Nadu and Eastern slopes of Western Ghats receive moderate rainfall.
- Areas with Low Rainfall: Areas receiving annual rainfall between 50 cms to 100 cms are the Deccan Plateau, Western U. P, South-Eastern Punjab, Eastern Rajasthan and parts of Kashmir get low rainfall.
- Areas with Scanty Rainfall: Areas which get less than 50 cms rainfall annually are western Rajasthan, Kutch, Southeastern parts of Haryana, Northeastern Kashmir get scanty rainfall.
Consequences of the Uneven Precipitation in India:
- If there is too much rain in certain areas they cause floods and havoc all around. Many grown up crops, villages, railway lines are washed away resulting in great loss of men and money.
- If there are not sufficient rains even then people are doomed because of drought and hunger. Many people begin to starve and die of hunger. Standing crops dry away thereby bringing doom to the farmers.
Uneven distribution rainfall is due to:
- (A) Relief / Orography
- (B) Wind direction
- (C) Location
- (D) Low pressure axis.
Relief / Orography largely governs the distribution of rainfall. For instance, the windward side of the Western Ghats registers a rainfall of 250cms. On the other hand, the leeward side of this ghat is hardly able to receive 50cms.
Again, the heavy rainfall in the northeastern states can be attributed to their hilly ranges and the eastern Himalayas.
Western Rajasthan gets scanty rain because the Arabian Sea branch of the monsoon blows parallel to the Aravallis.
Rainfall in the north decreases from east to west. Kolkata situated near the sea receive about 120 cm, Patna 102cm, Allahabad 91 cm, and Delhi 56cm.
- Introduction
- The Onset Of The Monsoon And Withdrawal
- Factors Affecting India’S Climate
- Weather And Climate
- Climate Of India
- Climatic Controls
- The Movement Of Air : Wind
- Sea Breeze And Land Breeze
- Clouds And Rain (Condensation And Precipitation Of Water Vapour)
- Thunderstorms And Cyclones
- The Indian Monsoon
- The Seasons
- Advancing Monsoon (The Rainy Season)
- Retreating Monsoon (The Transition Season)
- Vagaries Of The Monsoons In India
- Distribution Of Precipitation In The Country
- Monsoon As A Unifying Bond
- Difference Between
- Mind Map
- solved questions
- Exercise-1
