The moisture loaded winds blow at a very fast speed. Their approach is marked by thunder and lightning. The actual amount of rain from the south-west monsoons is not uniform. The relief features influence it to a large degree. Areas of the Western Ghats that are situated in the direction of the wind receive maximum rainfall. The other side gets much less. The variation is between over cm to 50 cm.
The hilly ranges of the north-east cause heavy rainfall in the north-eastern states. There is a consistent decline in the amount of rainfall from east to west. Delhi gets rain that is less than half of what Kolkata gets. In between, Allahabad gets lesser rain than the eastward situated Patna.
Unlike the trade winds, the monsoons are not regular. There are rainy days followed by rainless days during the monsoon months. The cyclonic depressions that are formed at the head of the Bay of Bengal are responsible for the uneven and uncertain distribution of rainfall. These depressions travel towards the low pressure monsoon trough. The trough is not steadily placed.
It moves northwards or southwards for a variety of reasons. The plains would have rains or not depends upon the monsoon trough. If the axis of the trough shifts close to the Himalayas, there are dry spells in the plains but heavy damage to the plains year after year. The monsoons are also affected by changes in the pressure conditions over the southern oceans.
While when high pressure prevails over eastern South Pacific Ocean, low pressure is formed in the tropical eastern South Indian Ocean. In certain years, these pressure conditions are reversed. The intensity of the monsoons gets affected by the Southern Oscillation. If the pressure differences over Pacific Ocean and Indian Ocean are negative, the monsoons could be late and below average. Another development that affects the intensity of the trade winds is the periodic development of a warm ocean current along the coast of Perty. The Peruvian current is cold but every 2.
The worm ocean current increases sea surface temperatures.
Indian farmers still depend upon monsoons for their irrigation needs. A dry spell causes as much ruin as the flooded rivers. There is nothing certain about the monsoons. Their arrival, stay and departure are uncontrolled. When and where they would cause prosperity or devastation is unpredictable.
No wonder Indian farmers continue to have faith in the whims and mercy of Indra-the God of rains. The months of October and November are known for the retreating monsoons. As the monsoon trough becomes weaker with the approach of winter months, it starts retreating. There is reversal in the direction of the surface winds.
As October sets in, the monsoons withdraw from the northern plains. The sky now becomes clear due to the absence of clouds. This results in oppressive heat as it is combined with humidity arising out of moist land. There is now a shift in the low pressure conditions from the north-western plains to the Bay of Bengal. During middle of November, this shift results in occurrence of cyclones. Tropical cyclones cause rains on the Coromondal coast.
I voted many things on this one! I agree Fall is the best season not too hot and not too cold. My husband loves it also.
The thing that I really don't like is the sun goes down early and I can't enjoy more the temperature outside , cook outs and look at nature at its best. I still love Fall second to Spring, then Summer last is Winter. Your pictures are very beautiful thanks. I also wrote a hub on this same subject. It seems to be most everyones favorite.
I like autumn because for me it' has the most comfortable weather for jogging. Labels: Words , class 6 , Season. Both the changes in the length of the day and the height of the Sun at noon are caused by the tilt of the Earth's spin axis with respect to the plane of the Earth's path around the Sun. The most characteristic feature of the monsoons is the complete reversal of winds. In Punjab and Haryana, it too joins the Bay of Bengal branch.
Love you pics and article. I could just feel your excitement.
Nice pictures used! Fall is easily my favorite season, beautiful scenery, that perfect "not to hot, not to cold weather", and, of course, Halloween is in the Fall, love Halloween!
Fall is my favorite season! I got my camera ready this year and waiting for the leaves to change, then I can publish a Photo Journey! I am lucky to live in New England! Great Hub! Voting up and sharing! I hear you.
I absolute love autumn as well. Something about it reminds me of simpler times, back when I was a kid and Fall meant going back to school. My favorite is Saturday afternoon, when the sun is starting to head under the horizon and the afternoon sky feels hazy. It's like bright but not bright at the same time.
The air smells crisp and life just comes to a stand still. I love the Autumn months.
I enjoy the way the trees change and the weather can be warm and cool at the same time. The sky is full of geese and clouds and the wind is a flutter with all that nature must do to prepare for winter. A really great hub Applecsmith! When the sun is out Autumn is beautiful, unfortunately that doesn't happen much in the UK! Other product and company names shown may be trademarks of their respective owners.
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