What is an Urban Heat Island?

An urban heat island (UHI) is a metropolitan area that is warmer then its surroundings. A heavily urbanized or built up area has a lot of material that traps heat. This creates a UHI.

How is UHI defined?

The UHI value of a particular site is the difference between its temperature at a given time and the minimum temperature of the entire study area. For example, if the UHI for place X is 8, then 8 is the difference between temperature of place X and the minimum temperature in the study area (NCR)

Effects of living in an Urban Heat Island

• Greater Energy consumption due to increased use of cooling devices, which in turn generate more heat
• Greater consumption of water