discuss heat dome in detail in relation to its influence on warmness of the city compare to rural areas coolness, explain the climate difference between cities and rural areas in terms of temperature and rainfall
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An urban heat island (UHI) is an urban area or metropolitan area that is significantly warmer than its surrounding rural areas due to human activities. The temperature difference is usually larger at night than during the day, and is most apparent when winds are weak. UHI is most noticeable during the summer and winter. The main cause of the urban heat island effect is from the modification of land surfaces.[1][2] Waste heat generated by energy usage is a secondary contributor.[3] As a population center grows, it tends to expand its area and increase its average temperature. The term heat island is also used; the term can be used to refer to any area that is relatively hotter than the surrounding, but generally refers to human-disturbed areas.[4]