| Abstract: | We investigated the distribution digital characteristics of Landsat TM imagery from comparative regions of North and South Korea at different seasons using a variety of band ratios and multiple land-cover types. The relationships between the intensities of two bands in the 2-D plot are mainly linear in band2/bandl and band3/bandl, polygonal sporadic in band5/band1 and band7/band1, and most tri-polarizing in band4/band3. The 2-D plot of band4/band3 suggests the efficient discrimination in the main land-cover among water, vegetation and dry soil. Several discriminations are not conspicuous, for example, between city and dry field, or between mountain and plain field in September. The DN of band4 from vegetated zones shows stronger reflectance in September rather than in April, where other band values tend to be lager in April than in September over each land-cover. |
