Results
Fig-3 shows the results of the analysis. The left column of the figure shows the images of 250m resolution data composed with red-band/red-plain, infrared-band/green - plain, and infrared-band/blue-plain, for 5 cities. The right column shows the land surface temperature images for the cities. After normalizing the surface temperature using the surface temperature on the vegetated region classified as “Vegetation-2” of the land cover classification, the heat flux intensity was calculated.

Fig-3 Visible band and thermal band for the study sites (Tokyo, Seoul, Pyongyang, Beijing and Shanghai, from top)