INTRODUCTION

 Because of the industrialization, people gathered in the urban to find jobs. As time goes by, urbanization, which means population of the urban has been rapidly increased, took place. To build infrastructure caused by increase in urban population, most land on the basis of the urban center was used to construct buildings like company or apartment. Since density of the buildings increased, buildings blocked winds so that cooling, caused by convection, has been decreased. Also the use of energy in the urban was increased, green area was replaced by dark asphalt and concrete, which absorbs heat a lot. As a result, urban heat island effect, which stands for high temperature in the urban(built up areas) than that of rural areas, happened.

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 The rate of temperature change is very important nowadays since people concern about climate change. Of all, predicting extent of temperature change is not only hard but necessary for climate change action, since urban causes complicated feedback related to endless building infrastructure. Therefore, by using models we would like to check the rate of temperature change according to initial temperature during unit time in the urban heat island effect. Furthermore, we would like to find out the rate of temperature change according to setting different initial conditions, which affect urban heat island effect.