Quantitative estimates of warming by urbanization in South Korea over the past 55 years (1954-2008)

► The quantitative estimation of the urban warming based on the Empirical Orthogonal Function. ► Urban warming of 0.77 °C for 55 years over South Korea. ► Greenhouse warming of 0.60 °C for 55 years over South Korea. ► Urban warming of about 56% of total temperature increase for 55 years.