Last Updated on 20/08/2024 by wccexam Desk
Clouds will remain all over Delhi-NCR. But it will rain at some places. This used to happen earlier as well. Now the amount of selective rain is increasing. This time the same was seen in many districts of Delhi-NCR. The Indian Meteorological Department (IMD) said that this has happened due to the confluence of different seasons.
The winds coming from the southwest direction are bringing moisture from the Arabian Sea. This is the monsoon trough. It is passing close to Delhi. Apart from this, due to the western disturbance, cold-dry air is also meeting the trough. Due to this, moist monsoon winds are blowing. This is a complex seasonal process. In which two types of weather are meeting. That is why it is raining in some parts of Delhi, some parts are getting dry.
There is a lot of relief in Delhi due to the rain. It is cool. Due to this the heat has decreased. But this coolness is also in some areas with rain. But in some places there is drought and terrible heat. The rain caused some trouble for the people who commute daily in Delhi but people also enjoyed it. Because there was relief from the heat. Water was also accumulated at some places.
Scientists have given many reasons for this. They have also said that this happens when all these things work together. These reasons are – atmospheric heat, difference in the heat of the surface, friction caused by the wind on the surface, humidity, greenery, presence of water bodies and pollution. All these together disturb the weather of Delhi.
When the surface or ground heats up in the presence of moisture, it creates a low pressure area. This causes rain. The surfaces of buildings create friction with the winds. This creates an obstruction in the flow of air. The wind slows down. Humidity increases a lot in such places.
Due to pollution, aerosols show their game. Due to these, thunderstorm clouds are formed. If enough time is given, these clouds spread. They keep on growing. This leads to heavy rains in some areas. Thunderstorms occur. Atmospheric heat affects all these factors.
The urban heat island effect also works in increasing atmospheric heat. V. Vinoj said that if you want to understand the pattern of rain in a city, then all these factors and their relation will have to be analyzed. He and his colleagues are studying many such cities. So that it can be known what kind and how much change has come in the weather of that city due to urbanization.
Source (PTI) (NDTV) (HINDUSTANTIMES)