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W.B.C.S. Examination Notes On – Pre-Monsoon Rain And Its Usefulness – Geography Notes.
Monsoon season or rainy season is gift of God to mankind, plants, animals and all the other living beings on the Earth. Without rain, we will not be able to survive. Rainy season has some merits as well as some demerits, which are as follows.Continue Reading W.B.C.S. Examination Notes On – Pre-Monsoon Rain And Its Usefulness – Geography Notes.
Advantages :-
2) Rain water infiltrates in to the ground and hence the ground water table rises that is very useful for irrigation purposes.
1) Rain is very helpful in keeping the dew balance in the atmosphere which balances the temperature on our Earth.
3) Around 90 % of the world’s drinking water supply depends on the rain water.
4) In country like India, monsoon season has its own importance because crops, animals and the whole population is completely dependent on rain water.
Disadvantages :-
1) Rain water creates flood situation everywhere and hence that kills thousands of people and animals. Also the flood damages the crops and other plants.
2) Excess rainfall forces migration of the people living in the area closer to the river catchment.
3) Also rain water causes excessive load on our drainage system.
4) Excessive rain or flood situation causes many water borne diseases, which ultimately causes death of many people.
- Pre-Monsoon (Mar to May) and Monsoon (Southwest monsoon – Jun to Sep) +/- (plus or minus) 10 to 15 days on either side.
- Pre-Monsoon season is synonymous with heat and humidity with uncomfortable conditions throughout the day and night. However, fairly stronger winds bring down temperatures to a comfortable level during Monsoon in India.
- Clouds are more of vertical in nature during the pre-Monsoon season and mostly come up during late afternoon and early evening hours. They are triggered by high temperatures and towering clouds build up. On the other hand, the Monsoon season is known for stratiform clouds, mainly sheet-like continuous layers of clouds. Depths of these clouds are less but the layers are thick and moisture laden.
- Pre-Monsoon rain is sharp and intense and gets over for the day, after just one spell. But, the Southwest Monsoon brings longer spells of rain which are also recurring in nature.In the Monsoon season, rain can commence in Peninsular India during any time of the day, though the preferred time is generally late evening. On the other hand, pre-Monsoon rain occurs in the late afternoon and early evening hours.Pre-Monsoon showers are accompanied by squally winds leading to dust storms but during Monsoon, winds are persistently strong.
- Due to differential heating and huge diurnal variation of temperatures, the sea and land breeze remains prominent before the arrival of Southwest Monsoon in India. But, with the available humidity and overcast skies, the breezes are not that marked during Monsoons.Moreover, pre-Monsoon rain is patchy in nature but Southwest Monsoon covers large areas and the weather remains similar in vast pockets.
Our India country is a country with many variations, so there are variations in our country also in the seasons. There are six seasons of our country in Vasant Ritu: Spring, Grishma Ritu: Summer, Varsha Ritu: Rainy Season(Monsoon), Sharad Ritu: Autumn, Hemant Ritu: Pre-winter, Shishir or Shita Ritu: Winter, which changes in every two months intervals.
The arrival of Rainy Season
When the rainy season arrives, prosperity and greenery come all over, greed and hot winds life, bring relief to life. From the children to the old, the wave of happiness runs in all. During the rain, children bath and play and float in the water.
Farmers are also very happy with the time because their harvest lifts. The forest trees which have dried up during summer season in rainy season their sprout grows again. On dry black hills, greenery is spread over the hills, colorful flowers appear on each side.
Rivers, streets, drains, dams, are filled with water, the whole atmosphere cools down. Animals eat green grass and plants. The arrival of the rainy season is the key to happiness for all living organisms on earth.
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