New Delhi: Feel warmer than usual in some parts of Delhi-NCR compared to other areas? Maybe it’s not just temperature or moisture.
All of that can go down to the ladenkap that is converted and urban around you.
The effects of urban heat islands make locations hotter than others because of factors such as concretization, population density and land use area density.
A new study has found parts of the city that records an increase in the surface of the surface and canopy of 4-6 degrees Celsius by 1.30 in the morning.
This study, carried out by atmospheric science centers, Iit Delhi, analyzed changes in land use and land cover patterns over the past five decades based on Delhi maps between 1972 and 2014 to determine how urbanization affected the effect of urban heat islands.
in the Central National Capital Region.
This study assesses the intensity of the surface heat surface (SHI), which is measured on the surface of the soil, and the intensity of the layer of the island of the canopy (Cli), which is measured in the air.
It was found that with increased urbanization, around 500 square kilometers Delhi now experienced 4-6 degrees Celsius from CLHI at night, something that was not in the 1970s.
A concentrated 23 km of Delhi recording cllhi more than 5 degrees Celsius.
On average, close surface temperatures Delhi also increased by 1.02 degrees Celsius due to increased urban land use from 1970 to 2010.
NCR has also seen similar changes, with the increase in Shi and CLHI 4-6 degrees Celsius at noon and 2-4 Celsius degrees at night.
The study also views thermal comfort and discomfort due to excess heat and stipulates that a comfortable hour has been reduced over the past five decades.
“A very uncomfortable clock has increased from an average of 10 hours a day to 12-13 hours a day.
Similarly, comfortable hours have declined from about three hours per day to about an hour per day,” said this research, Written together by Ankur Prabhat Sati and Shweta Bhati.
Manju Mohan, the lead author of the study published in the urban climate, said the maximum increase in the maximum temperature at 1:30 a.m.
and the lowest at 10:30 a.m.
“Through the day, the surface heats a maximum at 1:30 a.m.
In comparison, the reading collected at 2:30 a.m.
shows an increase in uhi by 2-3 degrees Celsius.
At 10:30 a.m., the cold night temperature has released heat and makes the morning Ideal, “explained Mohan, who added that Gurugram, Dwarka, and Faridabad all showed high uhi readings, while locations such as Delhi Ridge (North) and Asola Bhatti wildlife asylum showed a slight increase in the surface or Cli at night.
Mohan, in previous studies to determine uhi in Delhi, has set locations such as Connaught Place and Sitaram Bazaar as the hottest, with an average index of more than 4 degrees Celsius.
JNU and Vasant Kunj have the lowest uh of 1-2 degrees Celsius.
Why some parts of Delhi are hotter than others
