write an essay on seasonal change
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Answer:
The various seasons India experiences throughout the year are broadly classified as summer, monsoon, winter and post monsoon period. Usually these seasons prevail in a particular duration around the year but not necessarily because there are many other environmental and anthropological factors that hinder the process of these seasons such as global warming and deforestation. The time period and intensity of these seasons in different parts of the country vary largely due to different topographical features. Many activities such as travelling and school calendars depend upon the seasons and climate of an area.
The meteorological department of India bifurcates the months of a year according to the seasons as follows:
Winter (December, January and February)
Summer (March, April and May)
Monsoon (June to September)
Post Monsoon (October to November)
These classifications are made keeping in mind the changes in temperature, air pressure, topography, amount of rainfall, changes in directions and intensity of air current etc.
Traditionally, India has six seasons namely Summer, Spring, Monsoon, Autumn, Winter and Prevernal season. They are divided among the twelve months of a calendar with each season having a span of exactly two months. Each season has its own beauty and is loved for different reasons.
Typically, the seasons in India are divided into 4 categories which are summer (March – May), winter (December – February), monsoon (June – September) and post monsoon also known as north east monsoon (October – November). The span of these seasons varies from 2.5 to 3 months.
During the winter season the temperature varies from 10 to 15 degree Celsius. Northern part experiences snowfall along with rain. December and January are usually the coldest months. In winter time, it is observed that nights are longer than days.
India being a tropical country, summer is a bit extreme in certain parts. The temperature is highest in April and May and varies from 32 to 40 degree Celsius. In summer the days appear comparatively longer than nights.
The Indian Monsoons typically start in June and extend till September. In India, majority of precipitation is caused by the south – west monsoons. The south west monsoon originates from the Bay of Bengal and Arabian Sea.
The months of October and November fall under the post monsoon season. Some parts of India receive their precipitation from the north east monsoon such as Tamil Nadu. This season marks the transition between a wet and dry season. The temperature slowly starts lowering during this transition.
Conclusion
So, these are the seasons of India as classified by the meteorological department. The span and intensity of these seasons are not fixed and are subject to change depending upon certain external environmental factors such as air pressure, direction of air currents, cloud formation, anthropological factors such as deforestation and pollution etc. As the environmental factors experience major changes, these changes are reflected largely in the duration and intensity of the seasons in India and also the neighboring parts. Hence, due to vast geographic scale and varied topography generalizations cannot be made for the seasons of India.