In last 25 years, Metropolitan cities have doubled in population growth due to large rural migration. As the sizes of cities remain same, the areas which were not paved before 25 years are now paved using concrete & asphalt to fulfill the residential, commercial & industrial requirement of the growing population. This increases the temperature in the metropolitan region as compared to their surrounding areas, these phenomenon is termed as Urban Heat Island (UHI). In these metropolitan cities, most of the rain water run-off goes wasted in the storm water drains instead of being harvested. We can use this rain water to retain the moisture in the earth which will help us to decrease the effect of Urban Heat Island.
Urban heat island, metropolitan cities, moisture retention, rain water
Aakash Malik; Megha Bhatt, Rain Water Harvesting: A Solution for Urban Heat Islands, HCTL Open International Journal of Technology Innovations and Research (IJTIR), Volume 14, April 2015, eISSN: 2321-1814, ISBN (Print): 978-1-62951-946-3.