Establishing and Investigating Urban Heat Island in two urban micro climate systems of India

Kubare, Atul (2021) Establishing and Investigating Urban Heat Island in two urban micro climate systems of India. Masters thesis, Indian Institute of Science Education and Research Kolkata.

Text (MS Dissertation of Atul Kubare, (16MS186)) 16MS186_Thesis_file.pdf - Submitted Version Restricted to Repository staff only Download (1MB)

Abstract

From our study we may conclude that, day and night UHI intensity is observed to be decreasing in Delhi, whereas Kolkata Day and Night UHI intensity is increasing in Kolkata. UHI varies drastically with changing seasons because of changing weather conditions. Physical parameters mainly cloud fraction, surface reflectance and humidity are observed to be affecting UHI in Delhi and Kolkata, although wind speed acts as ventilation its direction is more important which may not be aligned with city geometry. Pollutants such as particulate matter, black carbon and gaseous pollutants such as NO2 and SO2 observed to be affecting UHI Intensity. Change in land use land cover type is observed to be major factor affecting UHI in both Delhi and Kolkata. Difference in Day UHI and Night UHI is greater in case of Delhi which shows that there could be other factors such light pollution, electricity consumption, industrial expansion which are responsible for UHI and can be further investigate. Since influencing factors are consistent in both regions over the time these results can be extrapolated to other UHIs irrespective of its location. Increasing UHI in Kolkata is a matter of concern as it is still under development city and with current pollution levels and humidity discomfort is going to increase with time and there is a necessity of urban planning to mitigate this ever-increasing issue. Impacts of UHI on health care need to be further investigated as Heat stress mortalities are generally under estimated. Heat waves are already affecting other parts of the world severely such as Canada, India needs to gear up tackle this problem as pictures of stakeholders and hence economy being affected can be seen in the country.

Actions (login required)

View Item